【作者】 李杰； 王再花； 章金辉； 王彩云；

【Author】 LI Jie;WANG Zai-hua;ZHANG Jin-hui;WANG Cai-yun;Environmental Horticulture Research Institute of Guangdong Academy of Agricultural Sciences;Key Laboratory for Biology of Horticultural Plants,Ministry of Education,College of Horticulture & Forestry Sciences,Huazhong Agricultural University;

【机构】 广东省农业科学院环境园艺研究所； 华中农业大学园艺林学学院,园艺植物生物学教育部重点实验室；

【摘要】 本研究比较了4个播种期(3月中旬、6月下旬、8月下旬和10月下旬)以及2个移栽时间(6月下旬播种,9月中旬和10月中旬移栽)对除虫菊开花和产量性状的影响。结果表明,3月中旬的部分播种苗当年10月就能开花,但仅5%的植株花序数大于50,而除虫菊酯含量和产量均显著低于次年4月的二次开花。次年4月花期时,4个播种期的除虫菊酯含量差异不显著,3月中旬和6月下旬播种苗在花序数、鲜花产量、干花产量和除虫菊酯产量上差异不显著,但随着播种期的延迟,上述性状则显著下降。9月中旬移栽苗在花序数和产量性状上均显著高于10月中旬移栽植株,但两者除虫菊酯含量差异不显著。综合栽培成本等因素,云南除虫菊栽培以6月下旬播种、9月中旬移栽为佳。更多还原

【Abstract】 Field experiments were conducted to investigate the effects of sowing time(mid-March,in late of June,August and October)and transplanting time(mid-September and mid-October)on flowering and yield traits of pyrethrum.The results showed that plants sowing in mid-March can bloom in October of current year,but only 5%plants had flowers above 50,and their pyrethrin content and yield traits were significantly declined compared with that in the next April The differences of pyrethrin content at four sowing time were insignificant,and flower number,fresh flower yield,dry flower yield and pyrethrin yield were also insignificant between sowing mid-March and sowing in late of June,but these traits significantly decreased with the delay of sowing time.Flower number and yield traits of plants transplanting in mid-September were significantly higher than that of transplanting in mid-October.Taken together,it is better to sow in June and transplant in mid-September for pyrethrum in Yunnan Province.更多还原