premature bolting

Main research results as: 1. Premature bolting of Angelica sinensis could not be only obviously decreased, but also possibly be avoid by medium seedling raising in greenhouse in winter.

得出如下主要结论：1、冬季基质育苗不仅可大幅度降低当归早期抽薹率，而且有可能完全规避抽薹。

In order to solve the problem of premature bolting that exists in spring Chinese cabbage production. The certified method of bolting tolerance in Chinese cabbage was studied.

为了解决春大白菜生产中存在的未熟抽薹问题，开展了大白菜耐抽薹性及其鉴定方法的研究。

Seedling growth, plant growth, premature bolting, yield and quality of Angelica sinensis were obviously influenced by sowing date in seedling bed raising in greenhouse in winter.

冬季床播育苗的播种期对当归苗的生长及定植后的生长发育、早抽薹、产量及品质都有较大影响。

Inhibition of matrix seedling raising in winter on premature bolting of Angelica sinensis

冬季基质育苗抑制当归早期抽薹的效应研究

In cabbage production, premature bolting occurred from time to time is the important issues that need to be addressed in the spring vegetable production.

在甘蓝生产中，未熟抽薹现象时有发生，是春季甘蓝生产中需要解决的重要问题。

Seed vitality was also influenced by mother plant and branch position in some way. Seeds came from premature bolting plants had higher vitality than that from normal lateral branches.

采种母株和采种部位对当归种子活力也有影响，当年产早薹籽活力高于正常采收的侧穗籽。

Premature bolting has been a chief obstructive factor in Angelica sinensis production for many years.

多年来，早期抽薹是制约当归生产的首要问题。