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Carbohydrate content in branches and abscission of fruit of peach trees subject...
Barreto,Caroline Farias; Farias,Roseli de Mello; Menegatti,Renata Diane; Zandoná,Renan Ricardo; Martins,Carlos Roberto; Malgarim,Marcelo BarbosaAbstract The objective of this work was to evaluate the effect of chemical thinning with metamitron on fruit of the Maciel and Sensação peach (Prunus persica) tree cultivars, as well as to identify its relation to the carbohydrate content in their branches. The experimental design was randomized complete blocks, and the treatments were trees with no thinning, manual fruit thinning, and chemical thinning with 20...
Effect of high temperature and recovery from stress on crop–weed interaction
Ruchel,Queli; Zandoná,Renan Ricardo; Fraga,Diego Severo; Agostinetto,Dirceu; Langaro,Ana ClaudiaABSTRACT Biotic and abiotic stresses, either individually or in combination, may affect soybean growth and development negatively, besides competitiveness with weeds. This study aimed at evaluating the effect of heat stress and plant recovery on crop–weed interaction by analyzing growth variables. Experiments were set up as replacement series of soybean with slender amaranth. Treatments followed a factorial sch...
Application time of chemical thinning with metamitron in ‘Sensação’ peach trees
Farias,Roseli de Mello; Barreto,Caroline Farias; Zandoná,Renan Ricardo; Martins,Carlos Roberto; Mello-Farias,Paulo Celso deABSTRACT Thinning is a cultural practice that leads to balance between fruit yield and quality. It is carried out in a short period of time and requires qualified workforce, whose shortage ends up increasing costs. This study aimed at evaluating the thinning effect of metamitron on peach trees at different periods of time after bloom. The experiment was carried out in a commercial orchard of ‘Sensação’ peach tr...
Chemical thinning of 'BRS Kampai' peach trees
Farias,Roseli de Mello; Barreto,Caroline Farias; Zandoná,Renan Ricardo; Martins,Carlos Roberto; Mello-Farias,Paulo; Marodin,Gilmar Arduino BettioAbstract: The objective of this work was to evaluate the effect of thinning with metamitron on the fruit yield and quality of 'BRS Kampai' peach (Prunus persica) trees. The experiment was carried out in the municipality of Eldorado do Sul, in the state of Rio Grande do Sul, Brazil, in the 2016 and 2017 crop years. Treatments consisted of the application of 100, 200, 300, and 400 mg L-1 metamitron and of hand th...
Yield, germination and herbicide residue in seeds of preharvest desiccated wheat
Perboni,Lais Tessari; Agostinetto,Dirceu; Vargas,Leandro; Cechin,Joanei; Zandoná,Renan Ricardo; Farias,Humberto De SouzaAbstract: The goals of this study were to evaluate herbicide application rates at different timings for preharvest desiccation of wheat (Trial 1), as well as to evaluate the effect of the timing of herbicide desiccation at preharvest and harvest timing (Trial 2) on yield, germination, and herbicide residue in wheat seed. In Trial 1, treatments consisted of two application rates of glufosinate, glyphosate, paraq...
Competitividade relativa de cultivares de arroz irrigado com Aeschynomene denti...
Galon,Leandro; Guimarães,Sérgio; Radünz,André Luiz; Lima,Andreson Moraes de; Burg,Giovani Matias; Zandoná,Renan Ricardo; Bastiani,Marlon OuriquesObjetivou-se com o trabalho avaliar a habilidade competitiva relativa de cultivares de arroz na presença de um biótipo de angiquinho (Aeschynomene denticulata) em diferentes proporções substitutivas de plantas na associação. Os experimentos foram instalados no delineamento de blocos casualizados, com quatro repetições. Primeiramente, tanto para o arroz quanto para o angiquinho, determinou-se a população de plan...
Gesso e calcário aumentam a produtividade e amenizam o efeito do déficit hídric...
Zandoná,Renan Ricardo; Beutler,Amauri Nelson; Burg,Giovane Matias; Barreto,Caroline Farias; Schmidt,Marcelo RaulRESUMO Durante o cultivo de milho e soja, é comum a ocorrência de déficit hídrico, que pode reduzir a produtividade de grãos. O gesso agrícola pode ser utilizado para mitigar as perdas na produtividade. Este trabalho objetivou avaliar a influência da aplicação de gesso agrícola, com e sem calcário, nos atributos químicos do solo e na produtividade de milho e soja, em sistema plantio direto. O delineamento exper...
Comportamento do consumidor de frutas na região da fronteira oeste do Rio Grand...
Farias,Roseli de Mello; Barreto,Caroline Farias; Zandoná,Renan Ricardo; Rosado,Jessica Pedroso; Martins,Carlos RobertoO presente trabalho teve como objetivo identificar o perfil do consumidor, caracterizar a frequência, os principais hábitos de consumo de frutas e analisar os fatores que interferem no consumo da população residente na Fronteira Oeste do Rio Grande do Sul com Argentina e Uruguai. Foi realizada em 2012 uma pesquisa de caráter exploratório, transversal e de base populacional, constituindo-se na aplicação de quest...