CROP LOAD AFFECTS MINERAL CONCENTRATIONS AND INCIDENCE OF BITTER PIT IN COX ORANGE PIPPIN APPLE FRUIT

被引:82
|
作者
FERGUSON, IB
WATKINS, CB
机构
关键词
MALUS-DOMESTICA; CALCIUM; MAGNESIUM; POTASSIUM; FRUIT MATURITY;
D O I
10.21273/JASHS.117.3.373
中图分类号
S6 [园艺];
学科分类号
0902 ;
摘要
Apple fruit (Malus domestica Borkh. cv. Cox's Orange Pippin) were harvested in four orchards from trees growing under the same conditions but differing in crop load. Regardless of fruit size, apples from light-cropping trees had lower Ca and higher K concentrations and more bitter pit than did fruit from trees with heavy crop loads. The inverse relationship between Ca concentration in the fruit and the incidence of bitter pit also varied according to crop load and could affect the ability to predict incidence of bitter pit from Ca measurements. Differences in fruit maturity that would influence bitter pit incidence were not associated with crop load. The enhanced susceptibility to storage disorders, such as bitter pit, in fruit of all sizes from light-cropping trees suggests the need to handle fruit from such trees differently for postharvest storage.
引用
收藏
页码:373 / 376
页数:4
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