ABSTRACT: This study evaluated the effect of removing apical dominance at phenological stages on the agronomic traits of soybean cultivars. The experiment was conducted in the 2020/2021 growing season inthe teaching-experimental area of the Federal Institute of Education, Science and Technology of Rio Grande do Sul, Campus Ibirubá, under a randomized block design in a split-plot arrangement, with three replications. The main plots were composed of five soybean cultivars (DM53i54 IPRO, Zeus IPRO, Lanza IPRO, DM5958 IPRO, and Delta IPRO), and the subplots consisted of the phenological stages of apical dominance removal (control, V2, V4, and V6). Morphological traits were evaluated at different stages. Differences were observed between cultivars, which followed their pre-defined morphologies. Apical dominance removal reduced aspects such as the number of nodes and legumes on the main stem and the first legumeinsertion height. Cultivars developed branching mechanismsas a compensation strategy, increasing the number of legumes on the branches by up to 130%. The removal of the shoot apex can modify morphological aspects in soybean plants,but their yield tends to be maintained. ABSTRACT 20202021 2020 2021 2020/202 teachingexperimental teaching experimental Education Sul Ibirubá splitplot split plot arrangement replications DM53i54 DMi DM i (DM53i5 IPRO DM595 , IPRO) control, control (control V2 V V4 V6. V6 . V6) predefined pre defined morphologies height strategy 130 130% plantsbut plants but maintained 2020202 202 2020/20 DM53i5 (DM53i DM59 13 202020 20 2020/2 DM53i DM5 1 20202 2 2020/

RESUMO: O presente artigo objetiva avaliar o efeito da remoção da dominância apical em estádios fenológicos, nos caracteres agronômicos de cultivares de soja. O experimento foi implantado na área didática-experimental do Instituto Federal de Educação e Tecnologia do Rio Grande do Sul, Campus Ibirubá, na safra 2020/2021, sob delineamento de blocos ao acaso, em arranjo de parcelas subdivididas, com três repetições. As parcelas principais eram compostas pelos cinco cultivares (DM53i54 IPRO, Zeus IPRO, Lança IPRO, DM5958 IPRO e Delta IPRO) e as subparcelas, pelos estádios fenológicos de remoção de dominância apical (testemunha, V2, V4 e V6). As características morfológicas foram avaliadas em diferentes estádios. Como resultados, verificaram-se diferenças entre os cultivares, que seguiram suas morfologias pré-definidas. A remoção de dominância apical, reduziu aspectos como o número de nós e legumes na haste principal, além da altura de inserção do primeiro legume. Como estratégia de compensação, os cultivares desenvolvem mecanismos de ramificação, acrescendo até 130% no número de legumes nos ramos. Verifica-se que a remoção do ápice caulinar é capaz de modificar aspectos morfológicos em plantas de soja, contudo, seu rendimento tende a ser mantido. RESUMO soja didáticaexperimental didática experimental Sul Ibirubá 20202021 2020 2021 2020/2021 acaso subdivididas repetições DM53i54 DMi DM i (DM53i5 DM595 subparcelas testemunha, testemunha (testemunha V2 V V6. V6 . V6) resultados verificaramse verificaram se prédefinidas. prédefinidas pré definidas. definidas pré-definidas principal legume compensação ramificação 130 ramos Verificase Verifica contudo mantido 2020202 202 2020/202 DM53i5 (DM53i DM59 13 202020 20 2020/20 DM53i DM5 1 20202 2 2020/2 2020/

ABSTRACT Cobalt (Co) and molybdenum (Mo) are essential elements with a fundamental role in biological nitrogen fixation in legumes. Vitamins such as thiamine, despite being required in small quantities, influence plant growth. This study aimed to assess the efficiency of different doses of thiamine applied as seed treatment, combined or not with Co and Mo, in enhancing the development of soybean crops. The experiment was conducted in a greenhouse according to a randomized block design with a 6 × 2 factorial arrangement, comprising six thiamine doses (0, 10, 25, 50, 100, and 200 mg kg-1) in the presence or absence of Co and Mo at the recommended rate of 100 mL ha-1. At 40 days after sowing, plants were analyzed for root length, root dry weight, shoot length, shoot dry weight, nodule number, and nodule dry weight. Principal component analysis showed that combined application of Co and Mo with thiamine was negatively associated with all variables and that the thiamine doses most positively associated with the analyzed variables were 50 and 200 mg kg-1. In treatments containing thiamine alone, there was a linear direct relationship between thiamine dose and nodule dry weight. Root and shoot lengths and dry weights were highest in plants treated with thiamine only at a dose of 122 mg kg-1. Application of Co and Mo combined with thiamine via seed treatment does not promote the development of soybean crops. Thiamine application is a promising treatment to increase shoot length, root dry weight, and nodule dry weight in soybean. (Co (Mo legumes quantities growth crops arrangement 0, 0 (0 10 25 20 kg1 kg 1 kg-1 ha1. ha1 ha 1. ha-1 4 sowing length number 5 kg1. alone 12 ( kg- ha-

Abstract The objective of the study was to evaluate the relationship between the preference index (IP) and synchrony (IS) of forage species from Baja California Sur. Samples of the 23 forage species of trees and shrubs were obtained to perform in situ digestibility analyzes using four Creole-Nubian goats. Collections were carried out in winter and spring of 2004, and summer and autumn of 2005. The extent of degradation per hour and total of 24 h was calculated from the amount of OM and PC degraded per hour; these data were used to calculate the IS. The seasonal PI data set was obtained from previously published information. A logistic regression model was used to explain the probability of occurrence of the IP with the IS. The regression model to explain the IP from the IS was significant and predictive for six species, being positive for Adelia virgata, Amaratus palmeri, Haematoxilon brasiletto, Lippia palmeri and Prosopis sp., and negative for Bursera microphyla. For other tree species and legumes in general, the model was significant, but not predictive, therefore, it is necessary to include other factors to fit the model.

Resumen El objetivo del estudio fue evaluar la relación existente entre el índice de preferencia (IP) y sincronía (IS) de especies forrajeras de Baja California Sur. Se obtuvieron muestras de las 23 especies forrajeras de árboles y arbustos para realizar análisis de digestibilidad in situ utilizando para ello cuatro cabras con encaste de criollas-Nubio. Se llevaron a cabo colecciones en invierno y primavera del 2004 y verano y otoño de 2005. La extensión de degradación por hora y total de 24 h se calculó a partir de la cantidad de MO y PC degradados por hora; estos datos se utilizaron para calcular el IS. El conjunto de datos del IP estacional se obtuvo de información publicada previamente. Se utilizó un modelo de regresión logística para explicar la probabilidad de ocurrencia del IP con el IS. El modelo de regresión para explicar el IP a partir del IS fue significativo y predictivo para seis especies, siendo positiva para Adelia virgata, Amaratus palmeri, Haematoxilon brasiletto, Lippia palmeri y Prosopis sp., y negativa para Bursera microphyla. Para otras especies arbóreas y las leguminosas en general, el modelo fue significativo, pero no predictivo, por lo tanto, es necesaria incluir otros factores para ajustar el modelo.

Abstract Background: Altas Cumbres is a protected natural area located in the center of the state of Tamaulipas, which has not been sufficiently studied. Although legumes are a family well represented in the area, until now, no studies had been carried out to reveal their richness and distribution. Questions: How many and which legume species are found in the study area and how are they distributed along an environmental gradient? Species study: Fabaceae family. Study site and dates: Altas Cumbres, Tamaulipas, Mexico, during 2022 and 2023. Methods: Botanical material was collected and identified using specialized bibliography; Herbarium specimens and online databases were reviewed. An analysis of similarity was carried out with the sites studied, using the Jaccard index to obtain β diversity and observe its distribution. Results: A total of 132 species were obtained, belonging to 57 genera and three subfamilies. The greatest diversity of legumes belonged to the subfamily Papilionoideae (86 species / 37 genera), followed by Caesalpinoideae (41/18) and finally Cercidoideae (5/2). Herbaceous plants were dominant with respect to woody plants. Most species were recorded in an elevation range between 300 and 499 m asl, in submontane scrub and pine-oak forest communities. Conclusions: Altas Cumbres is an important reservoir for legumes from Tamaulipas and Sierra Madre Oriental considering its high richness and endemism (33 species restricted to Mexico).

Resumen Antecedentes: Altas Cumbres es un área natural protegida ubicada en el centro del estado de Tamaulipas, la cual no ha sido suficientemente estudiada. A pesar de que las leguminosas son una familia bien representada en la zona, hasta ahora, no se habían realizado estudios que dieran a conocer su riqueza y distribución. Preguntas: ¿Cuántas y cuáles especies de leguminosas se encuentran en el área de estudio y cómo se distribuyen en un gradiente ambiental? Especies de estudio: Familia Fabaceae. Sitio y años de estudio: Altas Cumbres, Tamaulipas, México, de 2022 a 2023. Métodos: Se colectó material botánico y se identificó taxonómicamente utilizando bibliografía especializada; además de revisar ejemplares de herbario y bases de datos en línea. Se realizó un análisis de similitud con los sitios estudiados, utilizando el índice de Jaccard para obtener la diversidad β y observar su distribución en un gradiente ambiental. Resultados: Se registró un total de 132 especies, pertenecientes a 57 géneros y tres subfamilias de Fabaceae. La subfamilia Papilionoideae presentó la mayor diversidad (86 especies / 37 géneros), seguidas por las Caesalpinoideae (41/18) y por último las Cercidoideae (5/2). Las plantas herbáceas fueron dominantes con respecto a las leñosas. La mayoría de las especies se registraron en un rango de altitud entre los 300 a 499 m snm, en matorral submontano y bosque de pino-encino. Conclusiones: Altas Cumbres es un reservorio importante para las leguminosas de Tamaulipas y de la Sierra Madre Oriental, considerando su alta riqueza y endemismo (33 especies restringidas para México).

ABSTRACT Climatic conditions cause variation in the availability and nutritional quality of forages; therefore, the use of corn (Zea mays L.) silage has been proposed. However, this crop has a low protein concentration, so the combination with legumes can improve this characteristic. The objective of this study was to evaluate the nutritive value of silage in different proportions of soybean (Glycine max (L.) Merr.) and corn forage grown in a subtropical region. In Tamaulipas, Mexico, six treatments were evaluated: Soybean 100% (S100), corn 100% (C100), and soybean-corn proportions (80%-20%: S80C20; 60%-40%: S60C40; 40%-60%: S40C60, and 20%-80%: S20C80). The variables that were evaluated were: Density, pH, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin, non-fibrous carbohydrates (NFC), starch, crude fat, net energy for lactation (NEL), net energy for weight gain (NEG), and metabolizable energy (ME) and mineral content. Data were analyzed as a completely randomized design with three replicates per treatment. Treatment S100 showed the highest values (p < 0.05) in CP, ADF, crude fat, NEL, and NEG. The C100 had the highest values (p < 0.05) in starch and NFC, and the lowest pH value (p < 0.05). Meanwhile, the S40C60, S60C40, S20C80 combinations showed the highest values (p < 0.05) of TDN, ENL, and ENG. In the case of the combinations, the one with the best values was S40C60. In this regard, the mean values were: CP 143 g kg-1; NEL 1.43 Mcal kg-1; and pH 3.9. According to these values, it is classified as a silage of good nutritional quality, and we recommend its use in subtropical climates.

ABSTRACT The use of the cytome assay in monitoring studies on children has increased in recent years. For this reason, it is necessary to know the role of possible confounding factors that could affect its outcomes. The objective was to evaluate the influence of some demographic variables and diet on the baseline values of the cytome assay biomarkers in lymphocytes and buccal mucosa cells from a group of Argentine adolescents. Following the calculation of the biomarkers, a multivariate regression analysis including confounders was performed. In lymphocytes it was observed that micronuclei (MNi) had a negative association with a moderate consumption of roots and tubers, while the number of nuclear buds (NBUDs) was higher in minors not exposed to second-hand smoke (SHS). Regarding epithelial cells, MNi had a negative relationship with the intake of tropical fruits and red meat; on the contrary, this parameter increased with the moderate ingestion of legumes. In addition, oral NBUDs had a positive association with citrus and red meat consumption, whereas cereals and oil decreased its frequency. Furthermore, an increased number of binucleated cells was observed for adolescents who ate white meat and an increase in pyknotic cells for those exposed to SHS. These results revealed that in adolescents the baseline level of the cytome assay biomarkers, especially of those related to genotoxicity, can be influenced by exogenous variables, for instance, dietary habits. Thus, such factors need to be considered when carrying out biomonitoring studies on child populations.

RESUMEN El uso del ensayo de citoma en estudios de seguimiento en niños se ha incrementado en los últimos años y resulta necesario conocer el papel de posibles factores de confusión que podrían afectar sus resultados. El objetivo fue evaluar la influencia de algunas variables demográficas y de la dieta en los valores basales de los biomarcadores de este ensayo en linfocitos y células de mucosa bucal de un grupo de adolescentes argentinos. Luego del cálculo de los biomarcadores, se realizó un análisis de regresión multivariada incluyendo factores de confusión. En linfocitos se observó que los micronúcleos (MN) se asociaron negativamente con un consumo moderado de raíces y tubérculos, mientras que los brotes nucleares (BrN) aumentaron en los menores no expuestos al humo de segunda mano (HSM). En células epiteliales, los MN tuvieron una relación negativa con el consumo de frutas tropicales y carnes rojas, aunque aumentaron con el consumo moderado de legumbres. Los BrN orales tuvieron una asociación positiva con el consumo de cítricos y carnes rojas, mientras que los cereales y el aceite disminuyeron su frecuencia. Además, se encontró un mayor número de células binucleadas para quienes comieron carne blanca y un aumento de células picnóticas para los expuestos a HSM. Estos resultados revelaron que en los adolescentes el nivel basal de los biomarcadores del ensayo de citoma, especialmente de aquellos relacionados con la genotoxicidad, puede verse influenciado por variables exógenas como los hábitos alimentarios. Por lo tanto, dichos factores deben considerarse al realizar estudios de biomonitoreo en poblaciones infantiles.

Abstract Celiac disease (CD) is an immune-mediated enteropathy with systemic compromise in genetically susceptible individuals, caused by an immune response to ingested gluten. The only therapy for CD is a gluten-free diet (GFD). A case of a 55-year-old woman who reported to the emergency room for early satiety, intolerance to legumes, abdominal distension, and chronic diarrhea, including paresthesias in the upper and lower limbs, was presented. In addition, she described a functional decline due to dyspnea and involuntary weight loss of approximately 20 kilograms in the last 2 years. An esophagogastroduodenoscopy with CD protocol was performed, along with serology for CD, which confirmed the initial diagnostic suspicion. Treatment with a gluten-free diet and nutritional supplementation was indicated, which yielded a significant improvement in the clinical picture.

Resumen La enfermedad celiaca (EC) es una enteropatía inmunomediada con compromiso sistémico en individuos genéticamente susceptibles, causada por una respuesta inmunitaria al gluten ingerido. La única terapia para la EC es una dieta libre de gluten (DLG). Se presenta el caso de una mujer de 55 años que acudió al servicio de urgencias por saciedad precoz, intolerancia a las leguminosas, distensión abdominal y diarrea crónica, además de parestesias en los miembros superiores e inferiores. Adicionalmente, describió una disminución de la clase funcional por disnea y pérdida involuntaria de aproximadamente 20 kilogramos de peso en los últimos 2 años. Se realizó una esofagogastroduodenoscopia con protocolo para EC, junto con serología para la misma, lo cual confirmó la sospecha diagnóstica inicial. Se indicó tratamiento con dieta libre de gluten y suplementación nutricional, que produjo una mejoría significativa del cuadro clínico.

Abstract Objective: To analyze the association between the consumption pattern of the last mealtime and the intake of cardioprotective food groups in Chilean adults. Methods: Analytical cross-sectional study based on a secondary analysis in 3,587 adults ≥19 years old from the National Food Consumption Survey. They were divided into 4 groups according to the consumption pattern of the last meal: 1) Only “Five o’clock tea”, 2) Only Dinner, 3) Both, 4) None. The association with quantitative consumption of each cardioprotective food was determined through linear regression. The association with compliance of dietary guidelines (GABAs) was calculated with Poisson regression to obtain prevalence ratios (PR). Both models considered survey design clusters and municipalities as random intercept and were adjusted by age, sex, area and socioeconomic level. Results: The group that had only dinner had a greater consumption of cardioprotective foods compared to the group that only ate “Five o’clock tea”, however, this difference only turned out to be significant for fruits and vegetables (+41 g/day; p=0.017). This group also presented greater compliance with GABAs, which was only statistically significant for legumes (PR=1.30; p=0.02). Conclusion: Dinner was associated with higher daily consumption of fruits and vegetables and higher compliance with legume consumption recommendations.

Resumen Objetivo/Propósito: Analizar la asociación entre el patrón de consumo del último tiempo de comida y el consumo de grupos de alimentos cardioprotectores en adultos chilenos. Métodos: Estudio transversal analítico a partir de un análisis secundario en 3.587 adultos ≥19 años de la Encuesta Nacional de Consumo Alimentario. Se dividieron 4 grupos según el patrón de consumo de la última comida: 1) Sólo Once, 2) Sólo Cena, 3) Ambos, y 4) Ninguno. Se determinó la asociación entre los grupos y el consumo cuantitativo (gramos/día) de cada alimento cardioprotector a través de una regresión lineal. La asociación con cumplimiento de las guías alimentarias (GABAs) se determinó con regresión de Poisson para obtener razón de prevalencias (RP). Los modelos consideraron los conglomerados y comunas del diseño muestral como intercepto aleatorio y se ajustaron por edad, sexo, área y nivel socioeconómico. Resultados: El grupo que sólo cenaba presentó un mayor consumo de alimentos cardioprotectores comparado al grupo que sólo toma once, sin embargo, sólo resultó ser significativa para frutas y verduras (+41 g/día; p=0,017). Este grupo también presentó un mayor cumplimiento de GABAs, el cual sólo fue estadísticamente significativo para legumbres (RP=1,30; p=0,02). Conclusión: El consumo de cena en reemplazo de las once se asoció con mayor consumo diario de frutas y verduras y un mayor cumplimiento del consumo de legumbres.

Resumen: El maíz contiene un gran número de compuestos antioxidantes, muchos de ellos unidos a componentes de la pared celular, por lo que requieren tratamientos para liberarlos, como el uso de enzimas o procesos de fermentación. La fermentación en medio sólido (FMS) con Rhizopus oryzae se ha aplicado para aumentar la capacidad antioxidante (CA) y el contenido fenólico en cereales y leguminosas. El objetivo del presente trabajo fue evaluar el efecto de la FMS con R. oryzae sobre la CA y el contenido de fenoles totales (CFT) del maíz. La FMS se realizó en bolsas zip-lock (25 cm2) a 30 °C/72 h, con un inóculo de 1 x 106 esporas/g. Se tomaron muestras cada 12 h, el extracto se recuperó con etanol al 80 % y se utilizó para determinar el CFT y la CA (ensayo ABTS+, DPPH y FRAP). Los valores más altos se obtuvieron a las 60 h de cultivo, con un CFT de 1.92 mg/ gramos de materia seca (gms) y una CA de 1.47 mg de equivalentes Trolox por gramo de materia seca (mg ET/gms), 1.27 mg ET/gms y 5.8 mg Fe+2/gms para los ensayos de ABTS+, DPPH y FRAP, respectivamente. El uso de FMS permitió aumentar hasta 0.83 y 1.25 veces el CFT y la CA del maíz, con respecto al tiempo 0 h. El maíz fermentado con R. oryzae mostró potencial para ser empleado como materia prima para el desarrollo de alimentos funciona les, al incrementar su CA a través de un bioproceso.

Abstract: Maize contains a large number of antioxidant compounds. However, many of them are not in free form, as they are bound to components of the cell wall of maize kernels. For this reason, the use of treatments is required to release them, such as the use of enzymes or fermentation processes. Fermentation in solid medium (FMS) with Rhizopus oryzae has been applied to increase the antioxidant capacity (AC) and phenolic content in cereals and legumes. The objective of the present work was to evaluate the effect of FMS with R. oryzae on AC and total phenolic content (TPC) of maize. Fermentation on solid medium was carried out in zip-lock bags (25 cm2) at 30 °C for 72 h, with an inoculum of 1 x 106 spores/g. Samples were taken every 12 h, the extract was recovered with 80% ethanol, and used to determine TPC and AC (ABTS+, DPPH and FRAP essay). The highest values were obtained at 60 h of culture, with a TPC of 1.92 mg/gram dry metter (gdm) and an AC of 1.47 mg TE/gmd, 1.27 mg TE/gdm and 5.8 mg Fe+2/gdm for the ABTS+, DPPH and FRAP assays, respectively. The use of FMS allowed to increase up to 0.83 and 1.25 times the CFT and CA of corn, with respect to time zero. Corn fermented with R. oryzae showed potential to be used as a raw material for the development of functional foods, by increase its AC through a bioprocess.

Resumen: El nitrógeno en el suelo es crucial para la agricultura, pero a menudo es limitante, afectando el rendimiento de los cultivos. La deficiencia requiere fertilizantes sintéticos, pero su uso inadecuado causa daños ambientales y costos elevados. Las bacterias del género Rhizobium, simbiontes de leguminosas, ofrecen una solución al fijar nitrógeno de manera sostenible, reduciendo la dependencia de fertilizantes. Esta investigación determinó el número más probable (NMP) de células de Rhizobium spp. procedente de dos biofertilizantes comerciales de origen ecuatoriano y mexicano en condiciones de invernadero. Para esto, se realizó la inoculación directa con disoluciones seriadas (10-1 a 10-10) en macetas con pomina esterilizada al vapor, donde se germinaron plantas de frijol ejotero (Phaseolus vulgaris L.) de la variedad Blue Lake. A los 45 días después de siembra (DDS) se evaluaron los siguientes indicadores morfológicos: área foliar, peso de la planta en húmedo, altura de planta y número de flores, determinándose diferencias estadísticas entre el tipo de biofertilizante y la concentración de cada dilución. El experimento se adecuó a un diseño de bloques completos al azar con arreglo de parcela dividida con tres repeticiones por dilución, en consideración de las fluctuaciones de temperatura presentes en la zona de estudio. El NMP, al 95% de confianza, fue de 4,45x107 rizobios g-1 de pomina en una dilución 10-5 para el biofertilizante mexicano, y 1,48x105 rizobios g-1 de pomina en una dilución 10-4 para el biofertilizante ecuatoriano. La dilución óptima estimada para ambos productos fue de 10-8.

Abstract: Soil nitrogen is crucial for agriculture, but it is often limited, affecting crop yields. Deficiency requires synthetic fertilizers, but their improper use results in environmental damage and high costs. Bacteria of the genus Rhizobium, symbionts of legumes, offer a sustainable solution by fixing nitrogen, thus reducing dependence on fertilizers. This research determined the most probable number (MPN) of cells of Rhizobium spp. from two commercial biofertilizers of Ecuadorian and Mexican origin under greenhouse conditions. For this, direct inoculation with serial dilutions (10-1 to 10-10) was performed in pots with steam-sterilized pumice where Blue Lake variety snap bean (Phaseolus vulgaris L.) plants were germinated. The following morphological indicators were evaluated at 45 days after sowing (DAS): leaf area, plant wet weight, plant height, and number of flowers, determining statistical differences between the type of biofertilizer and the concentration of each dilution. The experiment followed a randomized complete block design with a split-plot arrangement, with three replicates per dilution, considering temperature fluctuations in the study area. The MPN at 95% confidence was 4.45x107 rhizobia g-1 of pumice at a 10-5 dilution for the Mexican biofertilizer, and 1.48x105 rhizobia g-1 of pumice at a 10-4 dilution for the Ecuadorian biofertilizer. The estimated optimal dilution for both products was 10-8.

ABSTRACT: Arbuscular mycorrhizal fungi associate with legumes to enhance nitrogen fixation and nutrient absorption, thus promoting plant growth and reducing fertilizer usage. This study aimed to measure the degree of specificity and dependency of cover legumes inoculated with arbuscular mycorrhizal fungi from degraded soils with acidic pH and low fertility in the Alto Cumbaza sector, San Martín, Peru. Four species (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, and Vigna unguiculata) were evaluated with three types of fungi (Acaulospora rugosa, Acaulospora sp., and Ambispora appendicula) in a completely randomized design with three replications. Canavalia ensiformis inoculated with Acaulospora rugosa reached greater height (271.67 cm), while Crotalaria juncea with Acaulospora sp. showed higher aboveground biomass (27.52 g). Vigna unguiculata with Acaulospora rugosa exhibited high colonization (71.48%) and mycorrhizal dependency (54.40%), and Cajanus cajan with Ambispora appendicula showed high phosphorus content (5.01%). These interactions varied significantly, demonstrating the specificity and dependency of the associations. These findings are important for establishing programs to recover degraded soils with cover legumes inoculated with arbuscular mycorrhizal fungi.

RESUMEN: Los hongos micorrízicos arbusculares se asocian a las leguminosas para mejorar la fijación de nitrógeno y la absorción de nutrientes, promoviendo así el crecimiento vegetal y reduciendo el uso de fertilizantes. Este estudio buscó medir el grado de especificidad y dependencia de leguminosas de cobertura inoculadas con hongos micorrízicos arbusculares provenientes de suelos degradados, con pH ácido y baja fertilidad del sector de Alto Cumbaza, San Martín, Perú. Se evaluaron cuatro especies (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea y Vigna unguiculata) con tres tipos de hongos (Acaulospora rugosa, Acaulospora sp. y Ambispora appendicula) en un diseño completamente aleatorizado con tres repeticiones. Canavalia ensiformis inoculada con Acaulospora rugosa alcanzó mayor altura (271,67 cm), mientras que Crotalaria juncea con Acaulospora sp. mostró mayor biomasa aérea (27,52 g). Vigna unguiculata con Acaulospora rugosa presentó alta colonización (71,48%) y dependencia micorrízica (54,40%), y Cajanus cajan con Ambispora appendicula mostró alto contenido de fósforo (5,01%). Estas interacciones variaron significativamente, evidenciando la especificidad y dependencia de las asociaciones. Estos hallazgos son importantes para el establecimiento de programas de recuperación de suelos degradados con leguminosas de cobertura inoculadas con hongos micorrízicos arbusculares.

Abstract Crop diversification using mixtures of varieties is one of the proposals being put forward in the context of organic agriculture. The mixture of varieties seeks to increase the functional diversity of the crop, which results in greater crop resilience in the face of changing and increasingly limiting environmental conditions and increases its competitive ability to weed species. Diversification of the chickpea (Cicer arietinum L.) by mixing varieties could improve its yield and facilitate the control of weeds while conserving its diversity. In order to evaluate this hypothesis, we proposed a trial of variety mixtures in a wheat-chickpea rotation, with a randomized block design. In this work, we present the results corresponding to the 2023 season of chickpea cultivation in which we compared the yield and weed abundance and diversity in mixtures of 2, 4 and 8 varieties to single variety cultivation. The mixtures were made by drawing lots from a set of 10 varieties among which there were kabuli type varieties, cream-colored and rounded seeds, and desi type, with small aristate seeds and brown or black color, which would allow us to have an acceptable level of genetic and functional diversity in the mixture. Our results showed that increasing the diversity of the crop can improve its resilience to the presence of weeds.

Resumen La diversificación del cultivo mediante el uso de mezclas de variedades es una de las propuestas que se está planteando en el contexto de la agricultura ecológica. La mezcla de variedades busca el aumento de la diversidad funcional cultivada lo que redunda en una mayor resiliencia del cultivo frente a condiciones ambientales cambiantes y cada vez más limitantes y aumenta su competitividad frente a las especies arvenses. La diversificación del cultivo del garbanzo (Cicer arietinum L.) mediante la mezcla de variedades podría mejorar su rendimiento y facilitar el control de la abundancia de las arvenses conservando su diversidad. Con el objetivo de evaluar esta hipótesis planteamos un ensayo de mezclas de variedades en una rotación trigo-garbanzo, con diseño en bloques al azar. En este trabajo presentamos los resultados correspondientes a la campaña 2023 de cultivo de garbanzo en la que se comparó el rendimiento, la abundancia y la diversidad de arvenses en mezclas de 2, 4 y 8 variedades frente al cultivo monovarietal. Las mezclas se realizaron mediante sorteo de un conjunto de 10 variedades entre las que había tipo kabuli, de semillas color crema y redondeadas, y tipo desi, con semillas pequeñas aristadas y de color marrón o negro, lo que nos permitiría disponer de un nivel aceptable de diversidad genética y funcional en la mezcla. Nuestros resultados mostraron que el aumento de la diversidad del cultivo puede mejorar su resiliencia frente a la presencia de arvenses.

Resumo A ervilha é uma cultura agrícola de grande importância na nutrição humana e animal. As ervilhas, por serem uma leguminosa, ajudam a repor as reservas de nitrogênio do solo. Em estudos de campo da Instituição Científica Orçamentária do Estado Federal do Centro Científico Federal de Leguminosas e Caprinos (região de Oryol), foi investigada a influência de diversos reguladores de crescimento e produtos biológicos nos indicadores de rendimento e qualidade de sementes de ervilha das variedades Nord e Multik. As ervilha são cultivadas em floresta cinza escura, solo argiloso médio e cultivo médio. Antes da semeadura, as sementes de ervilha foram tratadas com soluções de Kornevin, Albit e Epin-extra por imersão por 5 horas. Soluções dos medicamentos foram utilizadas na concentração de 10-6 M, depois secas e tratadas com Rizotorfin antes da semeadura. As taxas de crescimento durante a estação de crescimento e o rendimento das plantas de ervilha foram determinadas. O teor de proteína, amido e amilose no amido foi determinado nas sementes. Os resultados da pesquisa mostraram que o rendimento das ervilhas depende das condições climáticas. Sob condições climáticas favoráveis, o maior rendimento foi obtido na variedade de ervilha Nord (42,2 c/ha) na variante com tratamento de sementes com Kornevin, e na variedade Multik (43,0 c/ha) quando tratada com Rizotorfin. Em condições áridas, o maior rendimento de ervilhas da variedade Nord foi obtido com as preparações Epin-extra e Kornevin. O maior rendimento de ervilhas da variedade Multik foi obtido com as preparações Rizotorfin, Kornevin e Epin-Extra. Os resultados da pesquisa, confirmados por avaliação estatística, mostraram que os biorreguladores e reguladores de crescimento auxiliam na estimulação da quantidade de nitrogênio fornecida às plantas, bem como nos processos sintéticos de síntese proteica. Isso contribuiu para melhorar a qualidade das sementes e da massa verde. animal leguminosa região Oryol, Oryol , Oryol) escura semeadura Epinextra Epin extra horas 106 10 6 10- M determinadas proteína favoráveis 42,2 422 42 2 (42, c/ha cha c ha 43,0 430 43 0 (43, áridas EpinExtra. EpinExtra Extra. Extra Epin-Extra estatística proteica verde 1 42, 4 (42 43, (43 (4 (

Abstract Peas are an important agricultural crop of great importance in human and animal nutrition. Peas, being a legume crop, help replenish nitrogen reserves in the soil. In field studies of the Federal State Budgetary Scientific Institution of the Federal Scientific Center of Legumes and Goat Crops (Oryol region), the influence of various growth regulators and biological products on the yield and quality indicators of pea seeds of the Nord and Multik varieties was studied. Pea plants are grown on dark gray forest, medium loamy soil of average cultivation. Before sowing, pea seeds were treated with solutions of Kornevin, Albit and Epin-extra by soaking for 5 hours. Solutions of the drugs were used at a concentration of 10-6 M, then dried and treated with Rizotorfin before sowing. Growth rates during the growing season and the yield of pea plants were determined. The content of protein, starch and amylose in starch was determined in the seeds. Research results have shown that the yield of pea plants depends on weather conditions. Under favorable weather conditions, the highest yield was obtained from the pea variety Nord (42.2 c/ha) in the variant with seed treatment with Kornevin, and in the Multik variety (43.0 c/ha) when treated with Rizotorfin. In arid conditions, the highest yield of peas of the Nord variety was obtained using the preparations Epin-extra and Kornevin. The highest yield of peas of the Multik variety was obtained using the preparations Rizotorfin, Kornevin and Epin-Extra. The research results, confirmed by statistical evaluation, showed that bioregulators and growth regulators help stimulate the amount of nitrogen supplied to plants, as well as the synthetic processes of protein synthesis. This contributed to improving the quality of seeds and green mass. nutrition Oryol region, region , region) studied forest cultivation sowing Epinextra Epin extra hours 106 10 6 10- M conditions 42.2 422 42 2 (42. c/ha cha c ha 43.0 430 43 0 (43. EpinExtra. EpinExtra Extra. Extra Epin-Extra evaluation synthesis mass 1 42. 4 (42 43. (43 (4 (

Resumo O estudo de pesquisa de campo foi realizado na temporada (2017). A soja e as ervas daninhas foram amostradas semanalmente de forma aleatória. Tripes adultos foram identificados e contados. A detecção do vírus isolado e a incidência natural foram determinadas usando transmissão mecânica, gama de hospedeiros, DAS-ELISA, RT-PCR. A incidência natural de tripes em indivíduos foi detectada dependendo da % de SVNV em tripes e hospedeiros infestantes. Dez espécies de tripes foram associadas a plantas de soja no campo. A espécie mais abundante foi T. tabaci, com média de 256,5 número médio de indivíduos, seguida por F. occidentalis (142,5) e N. variabilis (86,6 / número médio de indivíduos). Catorze espécies de tripes ocorreram em 5 culturas de leguminosas e 41 espécies de plantas daninhas dentro de campos de soja. O maior número médio de 40,6 indivíduos foi registrado em Ammi majus. Enquanto o mais baixo, 3,3 número médio de indivíduos, foi no Urtica urens. Apenas 21 espécies de plantas diagnosticadas foram suscetíveis à infecção com SVNV. G. max e Vigna radiate foram os maiores percentuais de infecção, 80%, seguidos por V. unguilata e N. benthamiana, 75%. O isolado egípcio neste estudo mostrou um alto grau de similaridade e está intimamente relacionado ao TSWV do Egito (DQ479968) e ao TCSV dos EUA (KY820965), com identidade de sequência de nucleotídeos de 78%. Quatro espécies de tripes transmitiram SVNV (F. fusca 4,0%, F. schultzei 4,3%, F. tritici 3,3% e N. variabilis 68,0% de transmissão). Tanto C. phaseoli quanto M. sjostedti podem adquirir o vírus, mas não podem transmiti-lo. As seguintes espécies, T. tabaci, F. occidentalis, S. dorsallis e T. palmi não podem adquirir ou transmitir SVNV. A incidência de SVNV no campo, iniciada no final de julho, aumentou gradativamente de 12,7 para 71,3% no final da temporada. Em conclusão, poucos indivíduos de tripes invadiram a cultura da soja e são suficientes para transmitir alta taxa de SVNV dentro da cultura. Além disso, várias espécies de vetores também abundam em ervas daninhas, que são as principais fontes dos vírus da soja transmitidos às lavouras. Essas informações podem ser importantes para controlar e reduzir a incidência de infecção por SVNV.

Abstract Field survey study was conducted season (2017). Soybeans and weeds were weekly sampled randomly. Thrips adults were identified and counted. Detection of the virus isolate and the natural incidence was determined using; Mechanical transmission, host range, DAS-ELISA, RT-PCR. The natural incidence thrips individuals was detected depending on the SVNV% in thrips individuals and weeds hosts. Ten thrips species were associated with soybean plants in the field. The most abundant species was T. tabaci, average 256.5 average no.of individuals, followed by F. occidentalis (142.5 average no. of individuals), then N. variabilis (86.6/ average no. of individuals). Fourteen thrips species occurred on 5 legumes field crops and 41 weed plant species within soybean field. The highest average number 40.6.of individuals were recorded on Ammi majus. While the lowest one 3.3 average no. of individuals were on Urtica urens. Only 21diagnostic plant species were susceptible to infection with SVNV. G. max and Vigna radiate, were the highest percentage of infection 80% followed by V. unguilata & N. benthamiana, 75%. Egyptian isolate of Soybean vein necrosis virus (SVNV) in this study showed a high degree of similarity and it is closely related to TSWV from Egypt (DQ479968) and TCSV from USA (KY820965) with nucleotide sequence identity of 78%. Four thrips species transmitted SVNV (F. fusca 4.0%, F. schultzei 4.3%, F. tritici 3.3% and N. variabilis 68.0% transmission). Both C. phaseoli and M. sjostedti can acquire the virus but unable to transmit it. The following species; T. tabaci, F. occidentalis, S. dorsallis and T. palmi cannot acquire or transmit SVNV. The incidence of SVNV in the field started by the end of July then increased gradualy from 12.7 to 71.3% by the end of the season. In conclusion, few thrips individuals invaded soybean crops are enough to transmit high rate of SVNV within the crop. Furthermore, several vector species are also abundant on weeds, which are the major sources of soybean viruses transmitted to the crops. This information might be important for control and reduce the incidence of SVNV infection.

Resumo Bemisia tabaci é um complexo de espécies que causa danos a uma ampla gama de hospedeiros vegetais por meio de alimentação séria. Ele transmite vírus de plantas de diferentes grupos para importantes safras agrícolas. Algumas safras comerciais importantes do Paquistão são cana-de-açúcar, arroz, tabaco e óleo de semente. Apresenta alta variabilidade genética e é diferenciado em raças ou biótipos. Os biótipos são: biótipo Q, biótipo B, biótipo B2, biótipo M, biótipo L, biótipo A, biótipo H, biótipo C, biótipo K, biótipo N, biótipo R, biótipo E, biótipo P, biótipo J, biótipo S, biótipo AN . Embora o relatório atual baseado no estudo bayesiano das sequências de DNA do gene 1 da oxidase do citocromo mitocondrial (CO1) tenha classificado as diferentes populações de moscas-brancas em doze grupos genéticos, que são Mediterrâneo, África Subsaariana com folha de prata, Oceano Índico, Ásia II, Ásia I, Austrália, Novo Mundo, Itália, China, África Subsaariana sem folha prateada, Batata-doce Mediterrâneo / Ásia Menor / África e Uganda. Os begomovírus são o maior grupo de vírus transmitidos por B. tabaci e causam as principais doenças de culturas, como a doença do cacho do tomate e da pimenta-malagueta, doença do mosaico da mandioca, doença do mosaico amarelo de leguminosas e doença do enrolamento da folha do algodão. O principal objetivo do presente estudo é inculpar conhecimento sobre a diversidade genética da mosca-branca em campos de algodão em todo o Paquistão por meio da análise da sequência parcial de DNA do gene mitocondrial Citocromo Oxidase I (mtCO1).

Abstract Bemisia tabaci is a species complex that causes damage to its broad range of plant hosts through serious feeding. It transmits plant viruses of different groups to important agricultural crops. Some important cash crops of Pakistan are sugar cane, rice, tobacco and seed oil. It shows high genetic variability and is differentiated as races or biotypes. Biotypes are, biotype Q, biotype B, biotype B2, biotype M, biotype L, biotype A, biotype H, biotype C, biotype K, biotype N, biotype R, biotype E, biotype P, biotype J, biotype S, biotype AN. Although the current report based on the Bayesian study of mitochondrial cytohrome oxidase gene1 (CO1) DNA sequences has classified the different populations of whiteflies into twelve genetic groups which are Mediterranean, Sub-Saharan Africa silverleafing, Indian Ocean, Asia II, Asia I, Australia, New World, Italy, China, Sub-Saharan Africa non-silverleafing, Mediterranean/Asia Minor/Africa and Uganda sweet potato. Begomoviruses is largest group of viruses transmitted by B. tabaci and cause major diseases of crops such as tomato and chili leaf curl disease, cassava mosaic disease; yellow mosaic disease of legumes and cotton leaf curl disease. The main objective of current study is to inculpate knowledge regarding genetic diversity of whitefly in cotton fields across Pakistan via analysis of partial DNA sequence of mitochondrial gene Cytochrom Oxidase I (mtCO1).