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Oliveira,Cíntia Patrícia Martins de; Simões,Welson Lima; Silva,José Aliçandro Bezerra da; Faria,Glaucia Amorim; Lopes,Paulo Roberto Coelho; Amorim,Magno do Nascimento. |
ABSTRACT The present study evaluated the physiological and biochemical parameters of apple trees under different irrigation water depths in a semiarid region of Brazil. The experiment had a split-plot randomized block design. Irrigation levels (60, 80, 100, and 120% of the reference evapotranspiration - ET0) and two apple cultivars (Julieta and Princesa) were analysed in the experimental plots and the phenological stages (vegetative, flowering and fruiting) were analysed in the experimental subplots. The physiological characteristics evaluated included the chlorophyll index, relative water content, net photosynthesis, stomatal conductance, transpiration, internal CO2 concentration, leaf temperature and instant carboxylation efficiency. The biochemical... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica; Gas exchange; Leaf carbohydrates; Physiological stages. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100238 |
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Souza,Claudia Rita de; Mota,Renata Vieira da; França,Daniela Vieira Cardozo; Pimentel,Rodrigo Meirelles de Azevedo; Regina,Murillo de Albuquerque. |
The change of grape (Vitis vinifera) harvest from summer to winter through double pruning management has improved the fine wine quality in southern Brazil. High altitude, late cultivar and grafting combination all need to be investigated to optimize this new viticulture management. For this purpose, this study was carried out during the 2011 and 2012 growing seasons in a high altitude region of the state of Minas Gerais, Brazil, using eight grafting combinations for five year old Cabernet Sauvignon vines. The stem water potential, photosynthetic rate and stomatal conductance were not affected by rootstock type. The rootstocks IAC 766 and 101-14 induced, respectively, the highest and lowest vegetative vigor in Cabernet Sauvignon, as shown by leaf area and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Double pruning; Leaf carbohydrates; Vegetative vigor; Grape composition. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000200138 |
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