ABSTRACT This paper presents an investigation about the importance of the use of Socio-Scientific Controversies (SSC) in teacher training based on a topic of current interest that encompasses environmental and food education. For this reason, a didactic sequence (DS) is proposed on the environmental problems of arsenic (As) in water and two SSIs are raised: 1) the legal limits of As in water and 2) the contamination of water with As as a result of the urbanization of wetlands. The DS was applied to teachers of a continuous training on Environment, Development and Society in the last year of secondary school. The objective is to know how the use of SSC allows us to incorporate aspects of the nature of science, develop critical thinking and work on motivational and current topics of interest. The results obtained, through validated qualitative and quantitative techniques, show a change in the teachers' conception of these issues.

RESUMO Este trabalho apresenta uma investigação sobre a importância da utilização de Controvérsias Sociocientíficas (CSC) na formação de professores a partir de um tema de interesse atual que abrange a educação ambiental e alimentar. Por esse motivo, é proposta uma sequência didática (SD) sobre os problemas ambientais do arsénico (As) na água, colocando duas CSCs: 1) os limites legais do As na água e 2) a contaminação da água com As proveniente da urbanização em zonas húmidas. A SD foi aplicada a professores de uma formação contínua em Ambiente, Desenvolvimento e Sociedade do último ano do ensino secundário. O objetivo é saber como a utilização da CSC nos permite incorporar aspetos da natureza da ciência, desenvolver o pensamento crítico e trabalhar temas de interesse motivacionais e atuais. Os resultados obtidos, com recurso a técnicas qualitativas e quantitativas validadas, mostram uma mudança na conceção dos professores sobre estes temas.

RESUMEN Este trabajo presenta una investigación acerca de la importancia del uso de Controversias SocioCientíficas (CSC) en la formación del profesorado a partir de una temática de interés actual que engloba la educación ambiental y alimentaria. Por ello, se plantea una secuencia didáctica (SD) sobre la problemática ambiental de arsénico (As) en agua y se platean dos CSC: 1) los límites legales de As en agua y 2) la contaminación del agua con As a partir de la urbanización en humedales. La SD fue aplicada a docentes de una capacitación de actualización sobre Ambiente, Desarrollo y Sociedad del último año de la escuela secundaria. El objetivo es conocer como el uso de CSC permite incorporar aspectos de naturaleza de la ciencia, desarrollar el pensamiento crítico, y trabajar temas motivacionales y de interés actuales. Los resultados obtenidos, mediante técnicas cualitativas y cuantitativas validadas, muestran un cambio en la concepción del profesorado sobre dichos ejes.

ABSTRACT This paper aims to contribute to the achievement of the United Nations Sustainable Development Goals by promoting alternative science teaching methods that address the geographical challenges specific to Latin American contexts. It employs information and communication technologies to facilitate continuous teacher training. The study presents the findings of a research project that developed and implemented a didactic proposal for updating science teachers on gender issues through a fully virtual course. The proposal included self-directed activities utilizing a virtual teaching and learning environment. Participant feedback highlights the formation of communities of practice and the integration of socio-scientific content, particularly focusing on the gender perspective in science education.

RESUMO O presente trabalho procura contribuir para a concretização dos Objetivos de Desenvolvimento Sustentável das Nações Unidas, promovendo formas alternativas de ensino de ciências que superem as dificuldades geográficas próprias dos contextos latino-americanos. São utilizadas tecnologias da informação e comunicação com o intuito de facilitar a formação contínua de professores. Apresentam-se os resultados de uma pesquisa que incluiu o desenvolvimento de uma proposta didática para professores de ciências em temas de género e sua implementação através de um curso inteiramente virtual. A proposta contou com atividades autogeridas através do uso de um espaço virtual de ensino e aprendizagem. As vozes dos participantes são recuperadas, destacando a criação de comunidades de prática e o uso de conteúdos sociocientíficos, particularmente vinculados à perspetiva de género no ensino de ciências.

RESUMEN El presente trabajo busca contribuir a la concreción de los Objetivos de Desarrollo Sostenible de Naciones Unidas promoviendo formas alternativas de enseñar ciencias que superen las dificultades geográficas propias de los contextos Latinoamericanos. Se utilizan tecnologías de la información y la comunicación para facilitar la formación continua docente. Se presentan los resultados de una investigación que incluyó el desarrollo de una propuesta didáctica para la actualización del profesorado de ciencias en temas de género y su puesta en práctica a través de un curso enteramente virtual. La propuesta contó con actividades autogestionadas a través del uso de un espacio virtual de enseñanza y aprendizaje. Se recuperan las voces de las y los participantes destacando la creación de comunidades de práctica y el uso de contenidos sociocientíficos, particularmente vinculados con la perspectiva de género en la enseñanza de las ciencias.

ABSTRACT In this paper, we present a design-based research developed with a cohort of preservice biology teachers in the subject of Human Biology. We designed a proposal that integrated the video game ‘Plague Inc: Evolved’ to address the COVID-19 pandemic as a socio-scientific issue. In this context, we studied the development of scientific practices concerning the dynamics of the transmission of viral infections and the ideas of students (preservice teachers) about the integration of Information and Communication Technologies (ICT) in science teaching, specifically on its potential for the development of argumentative and dialogical environments. The changes and progress made during the implementation of the didactic proposal are highlighted. Through a qualitative analysis, we present discussions and theoretical reflections on the development of scientific practices in teacher training.

RESUMO Neste artigo apresentamos uma investigação baseada em design desenvolvida com uma coorte de professores de biologia da disciplina Biologia Humana. Concebemos uma proposta que integrou o videojogo ‘Plague Inc: Evolved’ para trabalhar a pandemia COVID 19 como uma questão sociocientífica, a partir da qual nos propusemos estudar o desenvolvimento de práticas científicas relacionadas com as dinâmicas de transmissão de infecções virais e o pensamento dos alunos (professores em formação inicial) acerca da integração das Tecnologias de Informação e Comunicação (TIC) no ensino das ciências, especificamente sobre o seu potencial para o desenvolvimento de espaços argumentativos e dialógicos. Recorrendo a uma análise qualitativa, apresentamos discussões e reflexões teóricas sobre o desenvolvimento de práticas científicas na formação de professores, destacando as mudanças e avanços ocorridos durante a implementação de uma proposta didática.

RESUMEN En este trabajo presentamos una investigación basada en diseño desarrollada con una cohorte de un profesorado de biología en la asignatura Biología Humana. Diseñamos una propuesta que integró al videojuego ‘Plague Inc: Evolved’ para abordar la pandemia COVID 19 como una cuestión sociocientífica. A partir de ello nos propusimos estudiar el desarrollo de prácticas científicas en relación con la dinámica de la transmisión de infecciones virales y las ideas del estudiantado (profesorado en formación) sobre la integración de las Tecnologías de la Información y la Comunicación (TIC) en la enseñanza de las ciencias, específicamente sobre su potencial para el desarrollo de espacios argumentativos y dialógicos. Se resaltan los cambios y avances durante la implementación de la propuesta didáctica implementada. A través de un análisis cualitativo presentamos discusiones y reflexiones teóricas al respecto del desarrollo de las prácticas científicas en la formación docente.

ABSTRACT The article presents a reflection derived from a systematic review of literature on initial teacher training (ITT) and the implementation of socio-scientific issues (SSI), as an essential tool in the ITT of science teachers, with emphasis on chemistry teachers in formation, as a population study of the research project that supports this reflection. SSI stand out as an opportunity to contribute to scientific literacy (SL) with democratizing goals of science, beyond functional SL, especially in a post-pandemic context, characterized by the need to innovate in methodologies to develop motivation and critical thinking, valuing scientific knowledge in context and territory, for responsible citizenship. The integration of SSI into the ITT challenged traditional and dogmatic practices, moving towards a contextually relevant education. The reflection is situated in the Chilean context, with the objective of stressing the ITT in science and its purpose.

RESUMO O artigo apresenta uma reflexão decorrente de uma revisão sistemática da literatura sobre a formação inicial de professores e a implementação de Controvérsias Sociocientíficas (CSC), como ferramenta essencial na formação inicial de professores de ciências, com ênfase nos professores de química. As CSC destacam-se como uma oportunidade de contribuir para a alfabetização científica (AC) com objetivos democratizantes da ciência, para além da AC funcional, especialmente num contexto pós-pandemia, caracterizado pela necessidade de inovar através de metodologias com o intuito de desenvolver a motivação e o pensamento crítico, valorizando o conhecimento científico em contexto e território, na procura de uma cidadania responsável. A integração das CSC na formação inicial de professores desafiou práticas mais tradicionais e dogmáticas, caminhando para uma educação contextualmente relevante. A reflexão situa-se no contexto chileno, com o objetivo de destacar a formação inicial de professores em ciências e a sua finalidade.

RESUMEN El artículo presenta una reflexión derivada de una revisión sistemática (RS) de literatura sobre formación inicial docente (FID) y la implementación de controversias sociocientíficas (CSC), como herramienta esencial en la FID de profesores de ciencias, con énfasis en profesores de química en formación, como población estudio, del proyecto de investigación que sustenta esta reflexión. Las CSC se destacan como una oportunidad para contribuir a la alfabetización científica (AC) con fines democratizantes de la ciencia, más allá de la AC funcional, especialmente en un contexto post-pandemia, caracterizado por la necesidad de innovar en metodologías para desarrollar motivación y pensamiento crítico, valorando el conocimiento científico en contexto y territorio, para una ciudadanía responsable. La integración de CSC en la FID, desafía las prácticas tradicionales y dogmáticas, transitando a una educación contextualmente relevante. La reflexión está situada en el contexto chileno, con el objetivo de tensionar la FID en ciencias y su propósito.

ABSTRACT Moringa oleifera Lam. is an arboreal forest species of great economic potential, adapted to the climatic conditions of the Brazilian semi-arid region, whose multiplication is mainly by seeds. Rapid viability and vigor tests help in the choice of lots. Thus, the objective of this study was to assess the efficiency of the pH of exudate and primary root protrusion tests in the evaluation of viability and vigor, respectively. Two seed lots were initially evaluated for moisture content, germination, first count, germination speed index, seedling length, seedling dry mass and electrical conductivity. For the pH of exudate test, phenolphthalein (1%) and sodium carbonate (2 and 4 g L-1) solutions were prepared, with three soaking periods (1, 3 and 5 h) and three temperatures (25, 30 and 35 °C). Exudate solution in strong to light pink color indicated viable seeds, whereas very light pink color to colorless indicated non-viable seeds. The primary root protrusion test was performed under 25, 30 and 35 °C, evaluating the primary root protrusion of at least 2 mm, every 12 h until 196 h. The experimental design was completely randomized, with four replicates. pH of exudate test with 1 h of soaking at 25 or 30 °C with 2 g L-1 sodium carbonate solution was promising, but further studies are needed before it is indicated as routine use for the species. Primary root protrusion test is efficient and can be conducted at 35 °C with evaluation after 48 h. Lam potential semiarid semi arid region seeds Thus respectively content count index length conductivity 1% (1% ( L1 L prepared 1, (1 (25 °C. C . °C) nonviable non mm 19 randomized replicates L- promising

ABSTRACT Biochar can promote crop production and soil quality. However, its characteristics depend on the waste used in its production and its effects may vary according to the species being cultivated and the management adopted. The aim of this study was to evaluate the application of biochar from animal waste on soil quality and the agronomic characteristics of the cowpea. An experiment was set up to test three types of biochar (bovine-BB, swine-SB and poultry-BP), with added fertiliser (BBF, SBF and BPF) and two control treatments, including the addition of calcium magnesium oxide (CT) and calcium magnesium oxide with fertiliser (CTF), giving a total of eight treatments with four replications. There was a respective increase of up to 102.94%, 1048%, 1560% and 360.22% in stem diameter, number of pods, number of grains per pod and stem dry matter from adding the biochar. The poultry biochar increased each of the above parameters even with no added fertiliser. There was no difference in basal soil respiration or β-glucosidase enzyme activity, whereas organic carbon (TOC), total nitrogen (TN), microbial carbon and soil labile carbon were greater with biochar. BBF gave the highest TOC content (24.40 g kg-1), while BP and BPF increased TN by around 61%. The application of biochar + fertiliser contributed to an average reduction of 56% in the soil metabolic quotient. Poultry biochar favoured both the agronomic characteristics of the cowpea and soil quality, while bovine biochar showed more marked results with the addition of fertiliser. However adopted bovineBB, bovineBB BB, BB (bovine-BB swineSB swine SB poultryBP, poultryBP , poultry-BP) BBF, (BBF CT (CT CTF, CTF (CTF) replications 10294 102 94 102.94% 1048 1048% 1560 36022 360 22 360.22 diameter pods βglucosidase β glucosidase activity TOC, (TOC) TN, (TN) 24.40 2440 24 40 (24.4 kg1, kg1 kg 1 kg-1) 61 61% 56 quotient poultry-BP (CTF 1029 10 9 102.94 104 156 3602 36 2 360.2 (TOC (TN 24.4 244 4 (24. kg-1 6 5 102.9 15 3 360. 24. (24 kg- 102. (2 (

ABSTRACT Currently with a more demanding market, is necessary to produce better and high physiological quality cultivars of soybeans. In front of this new challenge, our objective was to evaluate the physiological quality of 11 soybean cultivars: CD201, SYN1263, SYN1279, BMX, UFLA1, CA115, CD215, CD202, Conquista, Savana, and BRS820 storage for 12 months. Evaluations were conducted through physiological like germination and vigor (accelerated aging and controlled deterioration) and isoenzymes analysis. The seeds were stored under controlled conditions at 10 °C and 10% relative humidity. It was assessed every four months (0, 4, 8, and 12). 200 seeds per treatment were used for each test, divided into 4 replications of 50 seeds. The number of normal plants was evaluated on the fifth and seventh days, expressed as a percentage value. Isoenzyme analysis of MDH, ADH, Esterase, and Catalase was made. The results were interpreted from the presence or absence of bands in the gel. An experimental design in randomized complete blocks, interpreting data using analysis of variance in a factorial scheme 11 x 4 (11 cultivars and 4 times of storage and averages compared by the test Scott-Knott 5% of probability and regression analysis. The statistical program used was Sisvar®. We found that cultivars Savana and Conquista showed low physiological quality, and the cultivars CD 215 and BMX showed high physiological quality during storage. market soybeans challenge 1 CD201 SYN1263 SYN SYN1279 UFLA1 UFLA CA115 CA CD215 CD202 BRS BRS82 accelerated deterioration C humidity 0, 0 (0 8 12. . 12) 20 5 days value MDH ADH Esterase made gel blocks (1 ScottKnott Scott Knott Sisvar Sisvar® 21 CD20 SYN126 SYN127 CA11 CD21 BRS8 ( 2 CD2 SYN12 CA1 SYN1

ABSTRACT Planting is considered one of the most essential steps in coffee growing. Lack of uniformity in planting may compromise future operations. Therefore, verifying planting operations quality is fundamental to optimizing production processes and reducing costs. This study aimed to investigate planting techniques through Statistical Process Control (SPC) and aerial images. Carried out in two areas, managed manually and semi-mechanized in the Bom Jardim Farm (MG - Brazil). Data were collected through Remotely Piloted Aircraft (RPA). Quality control charts and density maps were used to identify variations in distribution and spacing between plants and planting rows. It was found that the planting carried out manually was 4.7% wider than projected due to spacing reduction from 0.5 m to 0.48 m. The semi-mechanized system displayed a deficit of 7% compared to the projected planting system, using 0.55 m between plants. The density map showed the most significant planting alignment variations. Despite displaying lower results than the manual system, the semi-mechanized system improvements are valid for their minimal average variations. Thus, correcting points found outside the limits can increase the efficiency of semi-mechanized planting. growing Therefore costs SPC (SPC images areas semimechanized semi mechanized MG Brazil. Brazil . Brazil) RPA. RPA (RPA) rows 47 4 7 4.7 05 0 5 0. 048 48 0.4 055 55 Thus (RPA 4. 04

ABSTRACT The cowpea is a legume that is widely grown in the north-east of Brazil, and which has been gaining ground in other regions of the country. The main producer is the state of Ceará, with a large planted-area, albeit low productivity due to a lack of producer technology and adapted cultivars. The aim of this study was to identify and recommend superior genotypes in terms of adaptability and stability under rainfed and irrigated conditions, in addition to genotypes with reduced grain darkening. To this end, six experiments were conducted in different districts of Ceará (Crato, Pentecoste, Crateús, Madalena, Bela Cruz and Limoeiro do Norte) and one laboratory experiment, to evaluate grain darkening. The experimental design of the field trials was of randomised blocks, with 14 genotypes and 4 replications. The analysis of variance showed a significant effect from the genotypes and environments and their interaction, so GGE Biplot analysis was carried out to evaluate adaptability and stability. To evaluate grain darkening, a completely randomised design was used in a simple factorial scheme with six previously selected genotypes and five different storage times (0, 2, 4, 6 and 8 months). There was a significant effect from the genotypes and storage time. Genotype 1 showed the least darkening, and can be recommended for environments to which it is best adapted (Crato and Crateús). Genotype 9 was considered the most stable for grain yield, and can be more broadly recommended for the semi-arid region of the state of Ceará. northeast north east Brazil country plantedarea, plantedarea planted area, area planted-area cultivars conditions darkening end Crato, Crato Pentecoste Crateús Madalena Norte experiment blocks replications interaction 0, 0 (0 2 months. months . months) time Crateús. Crateús) yield semiarid semi arid (

ABSTRACT There is great interest in varieties with greater competitive ability against weeds. This can be facilitated by path analysis, which involves the statistical evaluation and interpretation of the relationship between yield and its components. In this analysis, the occurrence of multicollinearity results in inconsistent estimates of the coefficients, and overestimates of the direct effects of the explanatory variables on the response variable. The aim of this study was to identify the characteristics with the greatest direct effect on pod yield and green and dry bean yields in traditional cowpea varieties, evaluated in competition with weeds in two experiments. In addition, the presence of multicollinearity was investigated in the analyses. In Experiment-1, twelve varieties with the highest bean yields in a preliminary evaluation were assessed in a randomized block design with five replications. In Experiment-2, six varieties, selected in the preliminary evaluation, were assessed using two methods of weed management: three of the most productive and three of the least productive. Randomized blocks and split plots were used, with five replications. Multicollinearity, indicated by the number of conditions and the variance inflation values, was greater in Experiment-2. In the six cases under study (three yields x two experiments), the number of pods per plant had the greatest direct effect on yield. analysis components coefficients variable experiments addition analyses Experiment1, Experiment1 Experiment 1, 1 Experiment-1 replications Experiment2, Experiment2 2, 2 Experiment-2 management used Multicollinearity values Experiment2. 2. experiments, , experiments) Experiment-

RESUMO: Entender aspectos da germinação de sementes de espécies nativas do Cerrado pode auxiliar na escolha de espécies a serem utilizadas na restauração de ecossistemas degradados. Portanto, o estudo teve como objetivo verificar o efeito de cápsulas biodegradáveis na germinação de sementes de três espécies arbóreas típicas de fisionomias florestais do Cerrado (Enterolobium contortisiliquum, Anadenanthera colubrina e Dipteryx alata). O experimento foi conduzido em casa de vegetação, com dois tratamentos: semeadura no interior de cápsulas biodegradáveis e semeadura direta na superfície do substrato. Duas sementes de cada espécie foram utilizadas por tratamento, as quais foram acomodadas em sacos plásticos com substrato arenoso oriundo da classe Neossolo Quartzarênico. Para cada tratamento, foram utilizados cinco blocos (repetições), com 20 sacos plásticos cada. A casa de vegetação teve condições controladas de temperatura e umidade relativa. Dentro das cápsulas, os resultados mostraram que as sementes de baru, angico-branco e tamboril apresentaram germinação de 97%, 42% e 12%, respectivamente. Por outro lado, na semeadura direta, a germinação foi de 15% para baru, 21% para angico-branco e 8% para tamboril. Os resultados indicam que o uso de cápsulas biodegradáveis favorece a germinação das espécies do Cerrado estudadas. Assim, tanto a utilização das cápsulas quanto as espécies elencadas são recomendadas em projetos de restauração ecológica. RESUMO degradados Portanto Enterolobium contortisiliquum alata. alata . alata) tratamentos tratamento Quartzarênico repetições, repetições , (repetições) 2 relativa baru angicobranco angico branco 97 97% 42 12 12% respectivamente lado 15 21 8 estudadas Assim ecológica (repetições 9 4 1

ABSTRACT: A good grasp of the different facets of seed germination of the plant species native to the Cerrado will facilitate the selection of species that can be used to restore degraded ecosystems. Hence, the objective of the current study was to confirm the ways biodegradable capsules affect the germination of the seeds of three tree species typical of the physiognomies of the Cerrado forest (Enterolobium contortisiliquum, Anadenanthera colubrina and Dipteryx alata). The experiments, conducted in a greenhouse, included two treatments: seeding performed inside biodegradable capsules and direct seeding on the substrate surface. Two seeds from each of the species were sown in plastic bags containing the Quartzarenic Neosol class of substrates. Using five replicates for each treatment resulted in 20 plastic bags for each. The greenhouse conditions included controlled temperature and relative humidity. Inside the capsules, the findings revealed that the baru, angico-branco and tamboril seeds germinated at the rates of 97%, 42%, and 12%, respectively. However, during direct seeding, germination rates for baru, angico-branco and tamboril were 15%, 21% and 8%. From the findings, it is evident that when biodegradable capsules are used, the germination of all three Cerrado species investigated is favoured. Thus, both capsules and the cited species can be recommended for projects of ecological restoration. ABSTRACT ecosystems Hence Enterolobium contortisiliquum alata. alata . alata) experiments treatments surface substrates 2 humidity baru angicobranco angico branco 97 97% 42 42% 12 12% respectively However 15 15% 21 8 8% favoured Thus restoration 9 4 1

ABSTRACT Chia (Salvia hispanica L.) seeds have attracted great economic interest for their high levels of linoleic and α-linolenic acids. In Brazil, there is a lack of studies on the agronomic characteristics and physiological quality of chia, necessitating research on germination processes and strategies to enhance yield under field conditions. There are no studies assessing the development of seeds with different coat colors in the presence of fungicides. This study aimed to assess the physiological quality of chia seeds as a function of coat color and fungicide treatment. The experiment followed a completely randomized design with a 2 × 2 factorial arrangement and six replications. For this, seeds were divided into two groups according to coat color (black and white) and subjected or not to treatment with carboxin + thiram. Germination speed index, germination rate, and shoot length were evaluated in plants sown at 0, 90, and 180 days after seed treatment. Germination rate and speed index differed significantly between coat colors, with white seeds having higher vigor than black seeds. Shoot length, however, differed only for seeds sown on the day of treatment, indicating that treated seeds were more vigorous. Salvia L. L αlinolenic α linolenic acids Brazil conditions fungicides replications this thiram 0 90 18 however vigorous 9 1

ABSTRACT Due to the importance of grain production, and the need to work the soil under limited moisture, the aim of this study was to develop computer software to predict the tractive capacity of wheeled tractors for two types of tyre, the effect of different inflation pressures and levels of soil moisture. A mathematical model was developed to predict the tractive capacity of a 4 x 2 AFT tractor. Software was developed and tested by comparing the computational data with those from tests of a working tractor in the field. The parameters under evaluation were drawbar force and front and rear drive wheel slip. At both moisture levels, the bias tyres had the lowest front to rear slip ratio at the lower pressure; the ratios were similar when equipped with radial tyres. The bias tyres show maximum force at a slip ratio of 1.09 at the higher pressure and 1.03 at the lower, while for the radial tyres the ratio was 1.05 at the higher pressure and 1.07 at the lower. Software was developed to process data from the model, with the results used for estimating the tractive force of the tractor. The tractive force was overestimated by the model, which needs further adjustment for direct application in the field. production tyre field 109 1 09 1.0 103 03 105 05 107 07 10 0 1.

ABSTRACT The estimation of evapotranspiration (ET) and crop water requirements are crucial for the proper management and allocation of water resources in terms of quantity, quality, and timeliness. Therefore, remote sensing estimation of ET using the SEBAL algorithm (Surface Energy Balance Algorithm for Land) can provide spatio-temporal, non-punctual data, unlike traditional calculations relying on the nearest meteorological station. This research analyzed ET using SEBAL, based on ten Landsat 8 satellite images processed with a program developed in the Model Builder of ArcGis® version 10.2. The analysis was conducted during the vegetative period of starchy corn from May to October 2016. Validation of the results happened with a drainage lysimeter installed in a monitoring plot. Additionally, the statistical indices - such as percentage relative error (PRE) (0,09), root mean square error (RMSE) (0,30), R2 (0,92), and Nash-Sutcliffe efficiency (NASH) (0,91) - indicated a good correlation of ET for starchy corn in the central highlands of Peru. The ET identified at ten monitoring points ranged from 1,05 to 7,79 mm d-1. (ET quantity quality timeliness Therefore Surface Land spatiotemporal, spatiotemporal spatio temporal, temporal spatio-temporal nonpunctual non punctual data station ArcGis 102 10 2 10.2 2016 plot Additionally PRE (PRE 0,09, 009 0,09 , 0 09 (0,09) RMSE (RMSE 0,30, 030 0,30 30 (0,30) R 0,92, 092 0,92 92 (0,92) NashSutcliffe Nash Sutcliffe NASH (NASH 0,91 091 91 (0,91 Peru 105 1 05 1,0 779 7 79 7,7 d1. d1 d 1. d-1 10. 201 00 0,0 (0,09 03 0,3 3 (0,30 0,9 9 (0,92 (0,9 1, 77 7, d- 20 0, (0,0 (0,3 (0, (0 (

ABSTRACT The aim of this study was to verify the response of the melon accessions MR1 and C14 to gamma radiation in terms of germination and morphology.The melon accessions came from the germplasm collection of the Federal Rural University of the Semi-arid Region, and were submitted to five doses of gamma radiation (0, 100, 200, 300, 400 Gy) in four replications, each comprising 25 seeds, at the Center for Nuclear Energy in Agriculture of the University of São Paulo. The seeds were grown in a greenhouse at UFERSA employing a completely randomised design. The germination potential, rate and index were evaluated during the first stage of the trial. During the second stage, the germinated plants were transplanted into eight-litre buckets containing substrate and sand, in four replications of 15 plants each. The inflorescence, leaf blade and fruit were evaluated. The IMAGE J image analysis software was used to obtain the leaf and fruit data. The germination potential varied for the gamma-ray doses being tested, while the germination rate and index were not affected; phenotypic variations were seen in the leaves. The gamma-ray doses had no effect on the germination process. MR C C1 morphologyThe morphology Semiarid Semi arid Region 0, 0 (0 100 200 300 40 Gy 2 Paulo design trial eightlitre eight litre sand 1 inflorescence data gammaray ray tested affected leaves process ( 10 20 30 4 3