噻苯隆对黄瓜果实生长及内源激素水平的影响

EFFECTS OF THIDIAZURON ON CUCUMBER(Cucumis sativus L.) GROWTH AND CONTENTS OF ENDOGENOUS HORMONES IN CUCUMBER

以黄瓜(Cucumis sativus L.)"川翠1号"为试验材料,研究苯脲型细胞分裂素类物质噻苯隆(TDZ)对黄瓜果实生长、品质及内源激素水平等的影响。结果表明,相比对照,TDZ处理的花后3～6d内黄瓜日均增长量增加35.71%;采收时单果鲜重、座瓜率分别增加27.09%和7.23%,畸形瓜率降低75.51%,且对黄瓜品质没有明显影响。此外,TDZ处理显著增加黄瓜花后3～6d果实内源GA、IAA和ABA含量,波动最大峰值分别较对照增加5.16%、20.24%和177.70%,并显著降低黄瓜花后0～6d内源ZT水平,其含量波动最低峰值较对照同期ZT水平低40.54%。

The effects of thidiazuron（TDZ） on growth and quality of cucumber（Cucumis sativus L.） ＂chuancui 1＂ were investigated.And the effects of TDZ on contents of endogenous hormones such as IAA,GA,ABA and ZT were studied.Results showed that daily mean growth of cucumber on 3-6d after TDZ treatment increased by 35.71% compared with control.Fresh weight and fruit setting rate of cucumber raised by 27.09% and 7.23%,respectively after TDZ treatment.Anomalous fruit rate of cucumber decreased by 75.51% in the TDZ treatment group than control.Futhermore,TDZ had no obvious effects on cucumber quality.In addition,the contents of GA,IAA,and ABA in cucumber were promoted by 5.16%,20.24%,and 177.79%,respectively after TDZ treatment,during 3~6d after treatment.However,the content of ZT decreased after TDZ treatment during 0~6d after treatment with the minimum value of 40.54% compared with that of control.