EFFECT OF CALCIUM NUTRITION ON ETHYLENE-INDUCED ABSCISSION
EFFECT OF CALCIUM NUTRITION ON ETHYLENE-INDUCED ABSCISSION
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DOI：
10.1104/pp.54.5.788
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发表时间：
1974-01-01
期刊：
影响因子：
7.4
通讯作者：
QUEBEDEAUX, B
中科院分区：
文献类型：
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作者：
BEYER, EM;QUEBEDEAUX, B
以棉花为试材，研究了钙营养对乙烯诱导棉花脱绒的影响。CV. Stoneville 213）和菜豆（Phaseolus vulgarisL.）CV.抗性黑瓦伦丁）植物在含有2、10（正常水平）、15或20 meq/l钙的营养液中培养数周，然后用乙烯处理植物。将棉花的钙水平从2 meq/l提高到20 meq/l，导致了乙烯诱导的叶片脱落区的钙含量增加了9倍，最大减少了25%。在10、15或20毫当量/升的钙溶液上生长的菜豆植株表现出相应的释放区钙含量的增加，但乙烯诱导的释放速率没有显著差异。只有在最低钙水平2 meq/l时，缺乏症状变得明显，才观察到显著效果。这些结果表明，在正常栽培条件下，钙营养对乙烯诱导的脱落率影响不大。
The influence of calcium nutrition on ethylene-induced abscission was studied by growing cotton (Gossypium hirsutumL. cv. Stoneville 213) and bean (Phaseolus vulgarisL. cv. Resistant Black Valentine) plants for several weeks in nutrient solutions containing 2, 10 (normal level), 15, or 20 meq/l of calcium, and then treating the plants with ethylene. Increasing the calcium level of cotton from 2 to 20 meq/l resulted in a 9-fold increase in the calcium content of the abscission zone and a maximum reduction of 25% in the amount of leaf abscission induced by ethylene (9 μl/l). Bean plants grown on 10, 15, or 20 meq/l calcium solutions showed corresponding increases in the calcium content of the abscission zone but showed no significant differences in the rate of ethyleneinduced abscission. Only at the lowest calcium level of 2 meq/l, where deficiency symptoms became apparent, was a significant effect observed. These results suggest that under normal cultural practices calcium nutrition has little influence on the rate of ethylene-induced abscission.