甜椒植株摘叶处理对落花落果的影响

甜椒植株摘去 50 %叶片比不摘叶处理生物学产量大幅下降 ,落果率高。初果生长速率在相同节位和相同时期 ,摘叶和不摘叶间表现相似 ,初果坐果节位为 5和 7的生长速率最大 ,其第 10节位试验果落果率最高。无性器官与试验果的生长量之和与试验果落果率呈直线相关。

The Influence of Assimilate Availability on Fruit Abortion in Sweet Pepper

This experiment was designed at plant setting initial fruit at different nodes and having two assimilate availability levels in order to investigate how fruit abortion is regulated.Results shown that pruned 50% leaves resulted in a strongly reduced biomass production and test fruit set percentage compared with no pruning 100% leaves;growth rate of initial fruit varied at different nodes,node 7 and 5 were at the rapidly development stage,their test fruit abortion were highest;Growth rate of vegetative parts and test fruit was strongly correlated to test flower/fruit abortion in both assimilate levels,there is strong competition between initial fruit and vegetative parts plus test flower/fruit after test fruit anthesis.