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作 者 ：王志芬;陈学留;余美炎;王同燕;任凤山;徐兵

期 刊 ：作物学报 1999年 25卷 04期 页码：458-465

关键词：冬小麦；群体根系32P吸收活力；群体光合速率；14C光合产物集运速率；32P矿质集运速率；

Keywords:Winter wheat, Root population 32P absorption vigour, Canopy apparent photosynthetic rate, 14C photosynthate accumulation rate, 32P mineral accumulation rate,

摘 要 ：利用同位素示踪技术，研究了冬小麦(鲁麦14)群体根系吸收活力和群体光合速率变化动态之间的关系。结果表明：返青到成熟，冬小麦群体根系32P吸收活力与群体光合速率符合回归方程y=2.050+1.641x(r=0. 8163* )；群体根系32P吸收活力与根层14C光合产物集运速率显著相关((r=0.9629**)，其变化主要受根层、茎层、叶层32P矿质集运速

Abstract:The trend of root population absorption vigour (RPAV) and canopy apparent photosynthetic rate (CAPR) and the relationships between them on winter wheat (variet：Lumai 14) which was planted on pondlets were studied by using isotope tracer and canopy photosynthesis measurement techniques. The resu

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