摘要
为提高大白菜的制种产量，在贵阳地区对新组合“杂１号”亲本的播期、密度、地膜覆盖、人工辅助授粉、喷施生长调节剂等进行了研究。其结果为：９月下旬播种，栽培密度５０ｃｍ×３０ｃｍ为好；植株调整、辅助授粉及植株调整＋辅助授粉分别比对照增产３１．７％、４２．０％及４８．０％；生长调节剂以０．５‰ＣＴ＋０．１％硼＋１％磷酸二氢钾为好，较对照增产４２．７％。
In order to raising the seed production rate of heading chineste cabbage(Brassica campestrisssp. pekinen-sis var. cephalata Tsen et Lee), seeding time, density,mulching, helping pollination,plant-growth regulatorsspraying etc. were studied on the parents of a new hybrid combination “Zha 1” in Guiyang. Results as follow:Seeding in late September and transplanting density as 50cm×30cm is better;plant regulation. helping polli-nation and plant regulation+helping pollination respectively increased more yield 31.7%. 42. 0% and 48.0%than check treatment; 0. 5‰CT+0.1%B+1%KHzPO4 is best among various plant-growth regulors tested.Itincreased yield by 42.7%compared with check.
出处
《贵州农业科学》
CAS
1996年第2期27-30,共4页
Guizhou Agricultural Sciences
基金
贵州省科学基金
关键词
大白菜
自交不亲和杂种
制种
heading chinese cabbage
F_1 hybrid of self-incompatibility
seed production technique
