三种植物生长调节剂对除虫菊酯含量与产量相关性状的影响

以从云南田间筛选的优良除虫菊无性系为试材,比较研究营养生长期和花蕾期喷施不同浓度的乙烯利、多效唑和比久对花序中除虫菊酯含量及产量相关性状的影响。结果表明,3种植物生长调节剂均能显著提高花序的除虫菊酯含量,以1 000 mg/L比久和50 mg/L乙烯利处理较好,增幅分别达17.9%和15.2%。喷施乙烯利、多效唑和比久也均能提高鲜花产量和干花产量,从而增加除虫菊酯产量,以150 mg/L多效唑处理效果最佳,除虫菊酯产量比对照显著提高了770 mg/株,其次为50 mg/L乙烯利处理,比对照显著提高了514 mg/株。

Effect of Three Growth Regulators on Pyrethrin Content and the Traits Related to Pyrethrin Yield

Pyrethrin content and the traits related to pyrethrin yield were determined after the application of ethrel, paclobutrazol and daminozide using a good pyrethrum clone selected from field in Yunnan Province. The results showed that three growth regulators significantly increased the pyrethrin content in flower, and both of 1 000 mg/L daminozide and 50 mg/L ethrel were better treatments, with a growth rate of 17.9% and 15.2%, respectively. Ethrel, paclobutrazol and daminozide also increased the pyrethrin yield by improving the fresh and dry flower yield, and paclobutrazol at 150 mg/L gained the highest pyrethrin yield with 770 mg/plant higher than the control, following with 50 mg/L ethrel treatment which was 514 mg/plant higher than the control.