ABSTRACT. Fig orchard expansion requires knowledge of the thermal requirements of genotypes available in different climatic regions. The budburst of fig cultivars was assessed by biological single-node cutting and exposure to artificial chilling. Cuttings from five cultivars were collected during two crop seasons, subsequently packaged in a horizontal position in a cold chamber (8 ± 0.5ºC), and artificially chilled for 0, 40, 80, 120, and 160h. Cuttings were preserved under controlled conditions (23 ± 1°C, RH 85%, and 16h photoperiod). The variables evaluated were the budding velocity, average time and final rate of sprouting, vigorous shoot rate, and average time to leaf opening. The single-node cutting test allowed the assessment of dormancy, which is influenced by the accumulation of chilling in each crop season. The average time and final budding rate varied depending on the temperature requirements for budding. The cultivars were classified on an increasing scale according to their chilling requirements as follows: Pingo de Mel < Roxo de Valinhos < Brown Turkey < White Genova < Troyano. The traditional cultivar in Brazil is Roxo de Valinhos, but all of the cultivars studied had the potential to diversify the fig orchards in this region. ABSTRACT regions singlenode single node seasons 8 ( 0.5ºC, 05ºC ºC 0.5ºC , 0 5ºC 0.5ºC) 40 80 120 160h h 23 (2 1C C 1 1°C 85 85% photoperiod. photoperiod . photoperiod) velocity sprouting opening dormancy season follows Troyano region 4 12 2

ABSTRACT Diversifying cultivars and intercropping with lemongrass can innovative strategies for banana growers to enhance the variety, profitability and sustainability of their orchards and to adapt to climate change. This study took place in the state of São Paulo, a subtropical region of southeastern Brazil and assessed the duration of the cropping cycles, growth and yield performance, and leaf nutritional content of banana cultivars BRS FHIA Maravilha, SCS 451 Prata Catarina, BRS Pacoua and Prata Anã when intercropped with lemongrass. The field experiment spanned two consecutive growing seasons. The growth, yield and nutrient content in the leaves of banana cultivars exhibited similar performance in both monoculture and intercropping with lemongrass. A shorter cycle was observed only in the first harvest with the lemongrass intercrop. The Prata Anã cultivar stood out for its earlier cycle, lower plant height and higher average yield per year. These findings are valuable for planning cultivar diversification in new orchards, exploring the potential for intercropping with lemongrass, and identifying the genotypes and cropping systems that are better suited to adverse climatic conditions. variety change Paulo cycles Maravilha 45 Catarina seasons intercrop year conditions 4

RESUMO A diversificação de cultivares e o cultivo consorciado com capim-limão podem ser uma abordagem inovadora para os produtores de banana aumentarem a variedade, a rentabilidade e a sustentabilidade dos pomares e se adaptarem às mudanças climáticas. O estudo foi conduzido no estado de São Paulo, uma região subtropical do sudeste do Brasil, e avaliou a duração dos ciclos de cultivo, o desempenho do crescimento e da produção e os teores nutricionais foliares das cultivares de bananeira BRS FHIA Maravilha, SCS 451 Prata Catarina, BRS Pacoua e Prata Anã em consórcio com capim-limão. O experimento de campo foi conduzido durante dois ciclos de cultivo consecutivos. O crescimento, a produtividade e o teor de nutrientes nas folhas das cultivares de bananeira apresentaram o mesmo desempenho em monocultura e em consórcio com capim-limão. O ciclo mais curto foi observado apenas na primeira safra com a cultura intercalar de capim-limão. A cultivar Prata Anã se destacou pelo ciclo mais precoce, menor altura de plantas e maior produtividade média por ano. Esses resultados são úteis no planejamento da diversificação de cultivares para novos pomares, na identificação da possibilidade de consorciação com capim-limão e na determinação de genótipos e sistemas de cultivo mais adaptados às condições climáticas adversas. capimlimão capim limão variedade Paulo Brasil Maravilha 45 Catarina capimlimão. limão. consecutivos precoce ano adversas 4

ABSTRACT The replacement of traditional table grape cultivars with seedless genotypes has become common in Brazilian viticulture, especially in non-conventional regions under subtropical conditions. In the context of viticulture, it is crucial to highlight the pivotal role played by rootstocks, which exert a direct influence on phenological cycle, productivity, and grape quality. This study aimed to assess the duration of phenological stages, thermal demand, and maturation of the grape cultivar ‘BRS Isis’ grafted onto different rootstocks in a subtropical climate during three harvest seasons. The results indicated that the duration of phenological stages varied across harvest seasons, notably extending in the third harvest season due to adverse prevailing climatic conditions. Although no significant differences were observed in the rootstocks during the initial phases of the phenological cycle, they influenced the overall duration from pruning to harvest. Particularly noteworthy were the rootstocks ‘IAC 572’ and ‘1103P,’ that had earlier maturation in one of the assessed seasons. Consequently, a variation in thermal requirement was higher in the third harvest season. The analysis leads to the conclusion that climatic conditions have impacted the duration of phenological stages, thermal requirements, and the maturation of ‘BRS Isis’ grape bunches in subtropical regions. viticulture nonconventional non conventional cycle productivity quality demand BRS Isis seasons IAC 572 ‘1103P, 1103P P Consequently requirements 57 ‘1103P 5

Abstract Global mango production generates significant agricultural and industrial waste, including non-standard fruits and peels. Herein, flours obtained from the immature fruits of four mango cultivars (Haden, Keitt, Parwin, and Tommy Atkins) were characterized for their physicochemical properties with the goal of valorization as an ingredient in functional food products. Regardless of cultivar, the peel flours represented excellent sources of fiber, with notable calcium, magnesium, manganese, carotenoids, and antioxidant contents as well as high percentage of large particles and good water retention capacity. Pulp flours exhibit high starch content, light color, and fine granulometry. The mango cultivars strongly interfered with the differentiation of the mango peel and pulp flours. The results presented herein show that understanding the characteristics of flours obtained by processing different parts of the fruits of various cultivars can produce composite mango flours with different nutritional and technological properties, expanding their possible uses in food products and driving sustainable agricultural production in terms of efficient crop waste management. nonstandard non standard peels Herein Haden, Haden (Haden Keitt Parwin Atkins cultivar fiber calcium magnesium manganese carotenoids capacity content color granulometry management

ABSTRACT Chill hours availability influence break dormancy, sprouting and production of temperate fruits trees in different regions. However, there are few reports on the subject for fig tree. This study aimed to evaluate the effects of the accumulated chilling hours on the physiology and dormancy release of fig cultivars. Stem cuttings of five fig cultivars were collected at the end of winter over two crop cycles and exposed to 0, 40, 80, 120 and 160 accumulated chilling hours (CH) in a cold chamber (8±0.5 ºC). Physiology of fig buds was then evaluated with regards to antioxidant enzymes activity, carbohydrate and nitrogen contents. The exposure of fig stem cuttings with two buds to different accumulated CH presented physiological changes for antioxidant enzymes activity, carbohydrates and nitrogen contents and confirming that the cultivars responded differently to the climatic conditions of each crop cycle. Results detected that the lowest accumulated CH in field in 2018 (2.7 CH) enabled a greater effect of the artificial CH when compared to 2017 (19.5 CH). Each fig cultivar had a critical accumulation point. The cultivars Roxo de Valinhos and Pingo de Mel require less CH to break dormancy, while Troyano requires more CH to finish this vegetative rest period.

Abstract The constant need for innovation in the food industries to meet the demands of consumers and the growing market for gluten-free and high-protein products have driven studies of mixed flour. In this study, 'BRS Platina' banana fruits were processed to obtain Whole Green Banana Flour (WGBF) and Green Banana Pulp Flour (GBPF) as well as leaves of Ora-pro-nóbis Flour (OPNF). Mixed flours were prepared by blending banana flours (WGBF or GBPF) with increasing levels of OPNF (from 5 to 25%). Flours were analyzed for physicochemical characteristics, mineral contents, Water Absorption Index (WAI), Water Solubility Index (WSI), and color. The main component of banana flours was starch, in which GBPF has the highest content. The WGBF had a higher mineral content, and in both flours, the potassium was at a greater level. OPNF showed the highest protein and mineral contents. Independent of the type of banana flour, mixed flours were darker, and had higher WAI and considerable increases in Mg, Fe, and Zn than no mixed ones. The blend of banana flours and Ora-pro-nóbis leaf flour can be a viable combination for preparing a variety of food products, due to its nutritional and technological properties. glutenfree gluten free highprotein high study BRS Platina (GBPF Orapronóbis Ora pro nóbis OPNF. . (OPNF) from 25%. 25 25% 25%) characteristics contents WAI, , (WAI) WSI, WSI (WSI) color starch content level darker Mg Fe ones properties (OPNF 2 (WAI (WSI

Resumo A constante necessidade de inovação nas indústrias alimentícias para atender às demandas dos consumidores e o crescente mercado de produtos sem glúten e com alto teor proteico têm impulsionado os estudos de farinhas mistas. Neste estudo, frutos de banana 'BRS Platina' foram processados para obtenção de farinha integral de banana verde (WGBF) e farinha de polpa de banana (GPBF), e folhas de ora-pro-nóbis foram processadas para obtenção de farinha (OPNF). As farinhas mistas foram preparadas pela mistura de farinhas de banana (WGBF ou GPBF) com níveis crescentes de OPNF (5 a 25%). As farinhas foram analisadas quanto a características físico-químicas, teores de minerais, índice de absorção de água (IAA), índice de solubilidade em água (ISA) e cor. O principal componente das farinhas de banana foi o amido, com maior teor na GBPF. A WGBF apresentou maior teor de minerais, com o potássio em maior quantidade. A farinha de ora-pro-nóbis apresentou altos teores proteico e mineral. Independentemente do tipo de farinha de banana, as farinhas mistas mostraram-se mais escuras, tiveram maior absorção de água e aumentos consideráveis de Mg, Fe e Zn. Misturas de farinhas de banana e farinha de folha de ora-pro-nóbis podem ser uma combinação viável para a formulação de diversos produtos alimentícios, devido às suas propriedades nutricionais e tecnológicas. estudo BRS Platina GPBF, GPBF , (GPBF) orapronóbis ora pro nóbis OPNF. . (OPNF) 5 ( 25%. 25 25% 25%) físicoquímicas, físicoquímicas físico químicas, químicas físico-químicas minerais IAA, IAA (IAA) ISA (ISA cor amido GBPF quantidade mineral mostraramse mostraram se escuras Mg Zn alimentícios tecnológicas (GPBF (OPNF 2 (IAA

ABSTRACT. Some plants do not demand a lot of chilling hours, but methods to overcome dormancy promote more vigorous and productive plant. This study aimed to assess hydrogen cyanamide and nitrogen fertilizer with different concentration to growth and production in ‘Roxo de Valinhos’ fig tree. Two crop cycles (2015/2016 and 2016/2017) was performed in São Manuel city, São Paulo State, Brazil. Phenological and productive data was evaluated in a 2 x 5 factorial (Product x Concentration), organized in randomized complete block design, with three trees by plot. The factor products had as level hydrogen cyanamide and nitrogen fertilizer and the factor concentrations was constituted by 0, 1, 2, 3, and 4%. Furthermore, the following data was evaluated: number of days for budbreak, number of buds per plant, harvest period, branch length and diameter, leaf number, leaf area, number of fruits per plant, fruit mass, production and yield. Results indicated that both products anticipated the sprouting and promoted a higher number of buds overcome the dormancy. Plant production was higher in both cycles when the products were used (2.1 and 2.7, respectively). At last, hydrogen cyanamide showed better outcomes due to the higher number of fruits and production.

RESUMO A indução ao florescimento artificial em mangueira é o manejo cultural mais importante em pomares e requer maior atenção dos produtores. O manejo envolve três etapas: paralisação do crescimento das plantas, maturação dos ramos e indução ao florescimento com nitratos. A primeira etapa começa com a aplicação de paclobutrazol ao solo. Porém, são comuns problemas com o uso de concentrações excessivas, que levam ao acúmulo de resíduos no solo. Além disso, o uso de paclobutrazol não é permitido na agricultura orgânica. Objetivou-se, neste artigo de revisão, compilar informações sobre as atualizações e esforços para solucionar esses problemas em lavouras convencionais de manga, bem como identificar alternativas para o seu manejo orgânico. Em pomares convencionais, a aplicação de ácidos fúlvicos em associação a paclobutrazol, como alternativa ao uso exclusivo de paclobutrazol, foi identificada como forma de melhorar a absorção do produto pelas plantas e, consequentemente, reduzir as concentrações e resíduos no solo. Pesquisas envolvendo poda, anelamento, fertilização e irrigação devem ser desenvolvidas como alternativa ao uso de paclobutrazol para o cultivo orgânico de cultivares de manga em regiões tropicais e subtropicais.

ABSTRACT The artificial flowering induction in mango tree is the most important crop management in mango orchards and requires greater attention from growers. The management involves three steps: stoppage of plant growth, branch maturation and flowering induction with nitrates. The first stage starts with the application of paclobutrazol to the soil. However, problems with the use of excessive concentrations are common and lead to the accumulation of residues in the soil. In addition, the use of paclobutrazol is not allowed in organic agriculture. Therefore, this review article aimed to compile information about the updates and efforts to solve these problems in conventional mango crops, as well as identify alternatives for its organic management. In conventional orchards, the application of fulvic acids in association with paclobutrazol, as an alternative to the single use of paclobutrazol, was identified as a way to improve the absorption of the product by plants and, consequently, reduce the concentrations and residues in the soil. Researches involving pruning, girdling, fertilization and irrigation should be developed as an alternative to the use of paclobutrazol for the organic crop system of mango cultivars in tropical and subtropical regions.

Resumo O objetivo deste trabalho foi avaliar cultivares de bananeira quanto aos seus rendimentos agronômicos e características de amido. O experimento foi realizado em blocos ao acaso, com arranjo fatorial de duas cultivares ('BRS Conquista' e 'BRS Platina') e dois ciclos da cultura, com três plantas por tratamento e cinco repetições. Avaliaram-se a produção e a qualidade do amido dos frutos. 'BRS Conquista' apresentou frutos menores; no entanto, mostrou maior massa comercial e produtividade do cacho do que 'BRS Platina'. Os amidos diferiram quanto às principais características físico-químicas, exceto quanto ao padrão de difração de raios X (tipo B) e teor de fósforo (0,0058–0,0060%). 'BRS Platina' destacou-se por seu maior teor de amido resistente (74,55%) que diferiu do amido isolado de 'BRS Conquista'. No entanto, o amido de 'BRS Conquista' apresentou as seguintes características: grânulos maiores (34,74 µm), com maior cristalinidade (33,64%); menor poder de inchamento e solubilidade (26,77 g g-1 e 19,21%, respectivamente); e maiores quebra de viscosidade, tendência à retrogradação e viscosidade final (67,06, 182,42 e 341,39 RVU, respectivamente). 'BRS Conquista' mostra características de produção favoráveis ao processamento para extração de amido. O maior teor de amido resistente de 'BRS Platina' pode justificar comercialmente sua menor produção agronômica. Os amidos das duas cultivares apresentam características desejáveis para aplicações industriais diversas.

Abstract The objective of this work was to evaluate the banana cultivars for their agronomic yield and starch characteristics. The experiment was carried out in a randomized complete block design, with a factorial arrangement of two cultivars ('BRS Conquista' and 'BRS Platina') and two crop cycles, with three plants per treatment, and five replicates. Fruit yield and starch quality were evaluated. 'BRS Conquista' showed smaller fruit; however, it had a greater marketable bunch weight and yield than 'BRS Platina'. Starches differed for the main physicochemical characteristics, except for X-ray diffraction pattern (B type) and phosphorus content (0.0058–0.0060%). 'BRS Platina' stood out for its higher content of resistant starch (74.55%) that differed from the starch isolated from 'BRS Conquista'. However, the starch of 'BRS Conquista' showed the following characteristics: larger granules (34.74 µm), with greater crystallinity (33.64%); less swelling power and solubility (26.77 g g-1 and 19.21%, respectively); and greater breakdown, setback and final viscosity (67.06, 182.42, and 341.39 RVU, respectively). 'BRS Conquista' shows favorable production characteristics for processing to obtain starch. The higher resistant starch content of 'BRS Platina' may commercially justify its lower agronomic yield. Starches of the two cultivars show desirable characteristics for different industrial applications.

Resumo: O objetivo deste trabalho foi avaliar os padrões fenológicos, o crescimento vegetativo e as características de rendimento de variedades de figueira (Ficus carica) no Sudeste brasileiro. As variedades 'Roxo de Valinhos', White Genova, PI-189 e Troyano foram distribuídas em delineamento de blocos ao acaso e avaliadas em campo. As seguintes características foram avaliadas: número de dias entre a poda e o início da brotação; teor de clorofila das folhas; número de brotos por ramo; comprimento, diâmetro e número de entrenós de cada ramo; número de folhas por planta; área foliar; número de frutos por planta; massa, comprimento e diâmetro dos frutos; produção e produtividade; e duração (dias) de cada estágio fenológico, tais como modelos de requerimento térmico. 'Roxo de Valinhos' e White Genova brotaram mais rapidamente e apresentaram maior número de brotações. Troyano obteve os maiores diâmetro e comprimento dos ramos, assim como maior número de frutos por planta, os quais tiveram os menores diâmetro, comprimento e massa. Além disso, Troyano apresentou colheita mais tardia e necessidade térmica de 4.577,31 graus-dia. 'Roxo de Valinhos' e White Genova apresentaram frutos com maior massa, diâmetro e comprimento. Troyano apresenta melhor desenvolvimento vegetativo e produz mais frutos por planta do que 'Roxo de Valinhos', mas os rendimentos de ambos os genótipos são similares.

Abstract: The objective of this work was to evaluate the phenological patterns, vegetative growth, and yield characteristics of fig (Ficus carica)varieties in Southeastern Brazil. The 'Roxo de Valinhos', White Genova, PI-189, and Troyano varieties were distributed in a randomized complete block design and evaluated in the field. The following characteristics were assessed: number of days between pruning and the beginning of sprouting; leaf chlorophyll content; number of shoots on each branch; length, diameter, and number of internodes on each branch; number of leaves per plant; leaf area; number of fruit per plant; mass, length, and diameter of fruit; production and yield; and duration (days) of each phenological stage, such as thermal requirement models. 'Roxo de Valinhos' and White Genova sprouted the fastest and showed the largest number of shoots. Troyano obtained the greatest branch length and diameter, as well as the greatest number of fruit per plant, which had the shortest diameter and length and the lowest mass of fruit. Furthermore, Troyano showed the latest harvest, besides the thermal requirement of 4,577.31 degree-days. 'Roxo de Valinhos' and White Genova produced fruit with the greatest average mass and diameter and the longest length. Troyano shows better vegetative growth and produces more fruit per plant than 'Roxo de Valinhos', but both genotypes show similar yields.

ABSTRACT. Calcium chloride application on fruits maintains the firmness of fruits, decreases storage breakdown and rot, extends shelf-life, and increases vitamin C and calcium content. Blackberries have low post-harvest durability due to the intrinsic characteristics of their fruits, mainly the high respiratory rate and low firmness, which causes problems in the production chain of fresh fruits. The current study aimed to evaluate the effects of pre-harvest application of calcium chloride on the fruits of ‘Tupy’ blackberry (Rubus spp.). A randomized block design for a factorial scheme was used, i.e. calcium chloride concentrations (0, 1.5, 3, and 4.5%) and number of applications (1, 2, and 3). Multiple applications occurred between 5-day intervals. The results showed that the calcium content in the fruits increased with a single application of 2.2%, but a decrease in mass loss was observed with a 4.5% application. The results also indicated great firmness and ascorbic acid content of fruits of ‘Tupy’ blackberry, in addition to the significant increase in fruit size and mass. However, in general, the content of soluble solids, sugars, antioxidant activity and total polyphenols decreased.

RESUMEN La banano es la segunda fruta con mayor volumen comercializado en el mundo. Por el hecho de ser una fruta muy apreciada por el consumidor brasileño, en los últimos años surgieron diversas tecnologías que ayudan al cultivo del plátano, principalmente relacionadas a la calidad de los frutos. En este contexto, el trabajo tuvo como objetivo evaluar la influencia de la coloración de las bolsas plásticas empleadas en el embolsado de racimos del banano 'BRS Conquista' sobre la producción y calidad de los frutos. Los tratamientos consistieron en el uso de bolsas de polietileno comerciales, en los colores blanco, negro, rojo y azul, además del testigo (sin embolsado). El diseño experimental fue en bloques casualizados, con cinco tratamientos, cuatro repeticiones y cuatro plantas por parcela, totalizando 80 plantas. Se evaluó la masa del racimo, masa de la raquis, masa del los frutos, número de frutos por racimo, número de pencas por racimo, masa de las pencas, número, longitud y diámetro de frutos de la segunda penca, y las características físico-químicas de los frutos, como sólidos solubles, acidez titulable, relación pulpa/cáscara e índice de maduración. Se verificó que el embolsado de los racimos con bolsas plásticas de diferentes colores no interfirió en las variables productivas. Sin embargo, en los racimos que no recibieron embolsado se observaron mayores contenidos de sólidos solubles que en los racimos empacados.

ABSTRACT Worldwide, the second most traded fruit is banana, which is highly appreciated by Brazilian consumers. Moreover, new technologies have been used to improve fruit quality during cultivation. This study aimed to assess the influence of plastic bag colors on the production and quality of banana 'BRS Conquista'. The treatments consisted of the use of commercial polypropylene bags e colored white, black, red or blue, in addition to the control (non-bagged). This study used a randomized complete block design with five treatments, four replicates and four plants per plot, totalling 80 plants. The assessments consisted of bunch mass; rachis mass; fruit total mass; mean cluster mass; number of fruits per bunch and per cluster; and fruit length and diameter; along with fruits physicochemical traits, such as soluble solids, titratable acidity, pulp/peel ratio and maturation index. The results indicated that no interference was obtained from the different plastic bag colors in the productive variables. However, a greater content of soluble solids was observed in the non-bagged bunches.

ABSTRACT The induction of sprouting is a fundamental practice to grow temperate fruits in warmer regions, as the use of alternative products are necessary. This study aimed to verify the influence of foliar nitrogen fertilizer application to induce bud sprouting at different doses in three types of peach cultivars, regarding fruit quality, in Botucatu, state of Sao Paulo. This study occurred at the experimental orchard of Botucatu Agriculture School of Universidade Estadual Paulista (FCA/UNESP) in 2015 and 2016. Evaluations consisted of three cultivars Douradáo, BRS Kampai and BRS Rubimel; and four doses of foliar nitrogen fertilizer (0; 1.25; 2.50 and 3.75%) with 4% calcium nitrate in all treatments. A randomized experimental design was conducted with 12 treatments, 4 replicates and 5 fruits per plot, that is, 240 evaluated fruits in each productive cycle. Fruits produced by cultivar BRS Rubimel showed the highest mean mass among the others, being greater than 100 g, regardless of applied dose. In this study, different doses influenced physical, physicochemical and biochemical attributes of fruits in all cultivars. However, both cultivars showed good quality standards in terms of size, high soluble solids content and low acidity, being recommended for direct consumption in Botucatu, state of Sao Paulo.

RESUMEN La inducción de brotación es una práctica fundamental en el cultivo de frutales en regiones de clima caliente. El objetivo de este trabajo fue evaluar el efecto de productos alternativos con la aplicación de diferentes dosis del fertilizante foliar nitrogenado (FFN), para inducir a la brotación y la calidad de frutos de tres cultivares de durazno en Botucatu - SP. El trabajo fue realizado durante los años 2015 y 2016, en la Estación Experimental de la Facultad de Ciencias Agronómicas de la Universidad Estadual Paulista, campus de Botucatu, SP. Los cultivares evaluados fueron durazno Douradáo, BRS Kampai y BRS Rubimel, con cuatro dosis de FFN: 0; 1,25; 2,50 y 3,75%, asociadas al 4% de nitrato de calcio. El diseño experimental fue en bloques al azar, con 12 tratamientos, 4 repeticiones y 5 frutos por parcela, totalizando 240frutos evaluados, en cada ciclo productivo. Los frutos producidos por el cultivar BRS Rubimel presentaron el mayor peso medio de los tres cultivares analizados, y fue superior a 100 g, indepen dientemente de la dosis del FFN utilizada. Las diferentes dosis del FFN utilizadas en este trabajo afectaron las características organolépticas de los frutos de los cultivares evaluados, en aspectos físicos, fisicoquímicos y bioquímicos. Los cultivares BRS Kampai y BRS Rubimel presentaron frutos con patrones óptimos de calidad en cuanto al tamaño, contenido de sólidos solubles y baja acidez, y son recomendados para producción destinada al consumo fresco en la región de Botucatu - SP.

Resumo: O objetivo deste trabalho foi avaliar as características fenológicas e a produção da videira 'Vênus' (Vitis labrusca) sobre diferentes porta-enxertos, assim como as características físico-químicas da uva, durante as safras de 2013, 2014 e 2015. Avaliaram-se os porta-enxertos 'IAC 766', 'IAC 572', 'IAC 313' e 'IAC 571-6'. A duração dos principais estádios fenológicos da videira e suas exigências térmicas foram avaliadas em dois ciclos de produção e expressas em dias após a poda e acúmulo de graus-dia, respectivamente. As características produtivas das videiras e as físico-químicas das uvas foram avaliadas durante três ciclos. O ciclo fenológico e as exigências térmicas da videira 'Vênus', bem como as características químicas de suas uvas, variaram com as condições climáticas durante as safras. As baixas temperaturas proporcionaram aumento do ciclo da videira, e os maiores índices pluviais acarretaram a redução do teor de sólidos solúveis e o aumento da acidez titulável das uvas. Os porta-enxertos 'IAC 766' e 'IAC 571-6' promovem maior precocidade na videira 'Vênus', e 'IAC 572' proporciona maior produção das videiras e melhores características físico-químicas das uvas 'Vênus'.

Abstract: The objective of this work was to evaluate the phenological characteristics and yield of 'Vênus' grapevine (Vitis labrusca) grafted onto different rootstocks, as well the physicochemical traits of its grapes during the 2013, 2014, and 2015 crop seasons. The evaluated rootstocks were 'IAC 766', 'IAC 572', 'IAC 313' and 'IAC 571-6'. The length of the main phenological stages of the grapevine and its thermal demands were assessed during two growing seasons and expressed as days after pruning and degree-day sum, respectively. Grapevine yield and berry physicochemical characteristics were assessed during three crop seasons. 'Vênus' phenological cycle and thermal demands, as well as the chemical characteristics of its grapes, varied with the climate conditions during the crop seasons. Low temperatures increased the grapevine cycle, and higher rainfall indices caused a decrease in the soluble solids of berries, as well as an increase in their titratable acidity. The 'IAC 766' and 'IAC 571-6' rootstocks promote a greater precocity to 'Venus' grapevines, and 'IAC 572' promotes a higher grapevine yield and better physicochemical characteristics of 'Vênus' grapes.