Effects of fruiting on seasonal leaf and whole-canopy carbon dioxide exchange of apple

被引：0

作者：

Wunsche, JN ^{[1
]}

Palmer, JW ^{[1
]}

机构：

[1] HortRes, Nelson Res Ctr, Motueka, New Zealand

来源：

INTERNATIONAL SYMPOSIUM ON INTEGRATING CANOPY, ROOTSTOCKS AND ENVIRONMENTAL PHYSIOLOGY IN ORCHARD SYSTEMS, PROCEEDINGS - VOLS 1 AND 2 | 1997年 / 451期

关键词：

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The seasonal effect of fruiting and environmental impacts on leaf and whole-canopy carbon dioxide exchange was examined using mature six-year-old 'Braeburn'/M.26 apple trees. Crop load affected leaf-and whole-canopy net CO2 uptake. Differences in average canopy net CO2 exchange were partly explained by average canopy light interception and night-time air temperature. Mid-season decline in photosynthesis was associated with an increase in leaf starch concentration as crop load decreased, presumably due to a lower carbohydrate requirement at this growth period.

引用

页码：295 / 301

页数：7