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秦美猕猴桃花期不授粉,果实于花后5-20 d全部脱落。不授粉,但花前 CPPU处理,果实可延迟5 d脱落,维持16.7%的果不落,但果实于花后5 d起停止发育。花后 5- 10 d未授粉果 ZRs。GAl+3含量低于对照,但ABA水平高于对照。花后20 d CPPU处理果实显著增大,对内源激素水平影响不大。处理后20 d内 ZRs、DHZR升高,处理后5 d IAA、 GAI+ 3下降, 10 d后上升。 ABA水平在花后60- 100 d降低,采前升高。对种子、内源激素在果实发育中的作用进行了讨论。
Qin Mei kiwifruit not pollination, the fruit after flowering 5-20 d all off. No pollination, but pre-anthesis CPPU treatment, the fruit can be delayed 5 days off, maintaining 16.7% of the fruit does not fall, but the fruit in the 5th day after anthesis to stop development. 5 - 10 d after anthesis did not pollinate ZRs. GAl + 3 content was lower than the control, but ABA level was higher than the control. At 20 d after flowering, the fruit of CPPU treatment significantly increased, little effect on the level of endogenous hormone. ZRs and DHZR increased within 20 days after treatment, IAA and GAI + 3 decreased 5 d after treatment, and increased after 10 d. The level of ABA decreased 60- 100 days after anthesis and increased before harvesting. The roles of seeds and endogenous hormones in fruit development are discussed.