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多效唑调控油菜生长的作用机理 被引量:13

Studies on regulation mechanism of paclobutrazol to the growth of rape plant.
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摘要 油菜苗期喷施多效唑,可使苗高降低和分枝数增加,植株内源GAs类物质和IAA含量显著下降,ABA含量和乙烯释放量明显增加,ZRs类物质含量也有一定增加。外源GA_3能较好地逆转多效唑对生长的抑制作用,使株高增加,而且植株体内GAs类物质含量也相应提高。因此,多效唑不仅可调节油菜体内的GAs类物质含量,还可以通过调节内源IAA和ABA含量以及乙烯释放量来调控油莱生长,喷施多效唑能改善油菜经济性状,提高籽粒产量,而对菜籽品质无不良影响。 The foliar spraying of paclobutrazol (PP333) at rape seedling could reduce the plant height and increase the branch number,in the meantime endogenous GAs and IAA contents were significantly decreased, while endogenous ABA and ethylene release were obviously increased. A certain increment of endogenous ZRs was also observed. The retardation effect of PP333 could be reversed by exogenous GAs ,with the increase of plant height and endogenous GAs. Therefore, it was suggested that not only endogenous GAs,but also endogenous IAA,ABA and ethylene release were involved in the regulation of PP333 to the growth of rape plant. The yield components and seed yield were improved,and no adverse effect of PP333 on seed quality was observed.
机构地区 浙江农业大学
出处 《浙江农业大学学报》 CSCD 1993年第3期316-320,共5页
基金 浙江省自然科学基金
关键词 油菜 多效唑 生长 调控 Brassica napus paclobutrazol GA IAA ABA ZR ethylene
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参考文献6

  • 1姜卫兵,马凯,朱建华.多效唑提高草莓耐盐性的效应[J].江苏农业学报,1992,8(4):13-17. 被引量:41
  • 2沈惠聪,周伟军,奚海福,叶庆富.多效唑对油菜生理调控及增产作用初探[J].浙江农业大学学报,1991,17(4):423-426. 被引量:13
  • 3张远海,汤日圣,高宁,张金渝,吴光南.多效唑调节水稻植株生长的作用机理[J]植物生理学报,1988(04).
  • 4吴颂如,陈婉芬,周燮.酶联免疫法(ELISA)测定内源植物激素[J]植物生理学通讯,1988(05).
  • 5董建国,俞子文,余叔文.在渍水前后的不同时期增加体内乙烯产生对小麦抗渍性的影响[J]植物生理学报,1983(04).
  • 6杨学荣.植物生理学[M]人民教育出版社,1981.

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