Resumo -O objetivo deste trabalho foi avaliar o efeito de diferentes porta-enxertos no desenvolvimento vegetativo, fenológico e produtivo do pessegueiro [Prunus persica (L.) Batsch] cv. Chimarrita. Os portaenxertos utilizados foram 'Capdeboscq', 'Tsukuba 1', 'Okinawa', 'Aldrighi' e 'GF 305'. As variáveis analisadas foram: diâmetro do tronco, volume da copa, material retirado da poda, época de brotação, época de fl oração, quantidade de clorofi la, área foliar específi ca, comprimento dos ramos principais, produtividade, massa dos frutos, coloração do fruto, fi rmeza de polpa, teor de sólidos solúveis totais (SST), acidez titulável (TA), relação SST/AT, fenóis totais e época de maturação. O delineamento experimental foi o de blocos ao acaso, com quatro repetições com cinco plantas cada. Não houve efeito dos porta-enxertos em: início da brotação, início da queda de folha, área foliar específi ca e maturação e massa de fruto. O diâmetro de tronco, comprimento de ramos, volume de copa, massa verde da poda e quantidade de clorofi la foram infl uenciados mais pelos porta-enxertos 'Capdeboscq', 'Okinawa' e 'Tsukuba 1'. O maior número de fl ores por ramo foi obtido com o porta-enxerto 'Capdeboscq'. Frutos mais avermelhados foram produzidos com o porta-enxerto 'GF 305', e os vermelhoamarelados com 'Okinawa'.Termos para indexação: Prunus, desenvolvimento, fenologia, fl oração, produtividade. Vegetative, phenological and productive characteristics of peach trees cultivar Chimarrita grafted on different rootstocksAbstract -The aim of this work was to evaluate the effect of different rootstocks on vegetative, phenological and productive development of peach trees [Prunus persica (L.) Batsch] cv. Chimarrita. The rootstocks used were 'Capdeboscq', 'Tsukuba 1', 'Okinawa', 'Aldrighi' and 'GF 305'. The variables studied were: trunk diameter, canopy volume, pruning weight, leafi ng and fl owering time, chlorophyll content, leaf specifi c area, length of scaffold branches, fruit weight and color, fruit fl esh fi rmness, total soluble solid (TSS) content, titratable acidity (TA), TSS/TA ratio, total phenols and fruit ripening time. The experiment was carried out using a randomized block design with four replicates, with fi ve plants each. No effect of the rootstocks was verifi ed on the beginning of leafi ng, and on leaf fall, leaf specifi c area, and fruit ripening and weight. The trunk diameter, length of branches, canopy volume, weight of the material removed by the pruning and chlorophyll content were better infl uenced by 'Capdeboscq', 'Okinawa' and 'Tsukuba 1'. The highest number of fl owers per branch was obtained with the rootstock 'Capdeboscq'. 'GF 305' provided redder fruits and 'Okinawa' redder-yellow fruits.
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