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Does spur age affect variation in the fruit maturity or quality within the tree?

Skrzynski, J.; Streif, J.;

COST 94. The postharvest treatment of fruit and vegetables. Determination and prediction of optimum harvest date of apples and pears. Proceedings of a meeting, Lofthus, Norway, 9-10 June 1994. Year: 1996 Pages: 127-131 Ref: 4 ref.

1996

บทคัดย่อ

Does spur age affect variation in the fruit maturity or quality within the tree?

Fruits of apple cv. Jonagold from 1-, 2-, 3- and 4-year-old wood were harvested at commercial maturity and either analysed immediately or stored in ultra-low oxygen conditions (1.5% O2, 2% CO2) at 1 deg C for 106 days. At harvest, fruit K, P and Ca concentrations were normal and Mg concentration was high compared with known standards. K:Ca ratio in fruits from 1- and 2-year-old spurs was lower than in fruits from 3- and 4-year-old spurs, indicating a lower risk of storage problems. Decline in flesh firmness, acidity and sugar content during storage was more pronounced for fruits from older spurs.