PREHARVEST RINDSTAIN OF VALENCIA ORANGE - HISTOCHEMICAL AND DEVELOPMENTAL CHARACTERIZATION

被引:13
作者
ARPAIA, ML
KAHN, TL
ELOTMANI, M
COGGINS, CW
DEMASON, DA
OCONNELL, NV
PEHRSON, JE
机构
[1] INST AGRON & VET HASSAN,DEPT HORT,COMPLEXE HORT AGADIR,AIT MELLOUL,MOROCCO
[2] UNIV CALIF,COOPERAT EXTENS,CTR CIV,VISALIA,CA 93291
关键词
CITRUS-SINENSIS; PREHARVEST DISORDER; RINDSTAIN; VALENCIA ORANGE;
D O I
10.1016/0304-4238(91)90049-5
中图分类号
S6 [园艺];
学科分类号
0902 ;
摘要
Pre-harvest rindstain of California cultivar 'Valencia' orange has economic significance since fresh fruit marketability is reduced. Quantification of the incidence of rindstain as related to tree quadrant has allowed us to designate quadrants where rindstain was most likely to occur (upper outside SW) or least likely (lower inside NE) to occur. Growth and development characteristics of fruit from the two quadrants were measured throughout fruit development. Significant differences in percent weight loss between fruit from the SW and NE quadrants occurred at color break and at commercial maturity. Structural and histochemical changes in flavedo tissue of fruit from SW or NE tree quadrants were monitored over the course of fruit development and maturation. First evidence of periderm formation occurred in October, coincident with observed changes in histochemical staining for lipids. These differences were increasingly evident as the fruit approached horticultural maturity and visual symptoms of rindstain developed. The development of a pronounced periderm in affected fruit suggests that rindstain is due to a physical trauma, although we do not believe it is caused by wind.
引用
收藏
页码:261 / 274
页数:14
相关论文
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