Interaction effects of nitrogen and potassium fertilization on anthocyanin composition and chromatic features of Tempranillo grapes

被引:0
|
作者
Delgado, Ruben [1 ]
Gonzalez, Maria Rosa [1 ]
Martin, Pedro [1 ]
机构
[1] Univ Valladolid, Dept Prod Vegetal & Recursos Forestales, Palencia 34004, Spain
关键词
CIELAB; colour; copigmentation; polyphenols; Vitis vinifera;
D O I
暂无
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
A factorial experiment (3 nitrogen and 3 potassium fertilization doses) was carried out in a Tempranillo vineyard located in the 'Ribera del Duero' Apellation d'Origine area (Spain) in 2000. N and K supplies caused decreases in delphindin and petunidin monoglucoside content in grape skins. High nitrogen doses increase L* coordinate and chroma of the skins. High potassium with unbalanced nitrogen supplies enhances hue and yellow component of colour. Possible effects of N and K fertilization on the copigmentation of anthocyanins are discussed.
引用
收藏
页码:141 / 150
页数:10
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