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套袋选留种是品种提纯复壮的一项技术措施。套袋留种比一般留种的种子质量显著提高。经测定,“红花大金元”品种蒴果内平均种子粒数套袋留种比一般留种提高62%,种子千粒重套袋留种比一般留种提高27毫克。套袋留种的种子成熟饱满、均匀、有光泽,播后出苗、成长一致。套袋留种技术必须掌握几点:1、套袋时间。套袋作用是在于有效地保证花枝中部的花朵受精时安全隔离,结实时正常成长。套袋时间不宜过早过迟,最适宜的套袋时间是盛花初期套袋,末花期取袋。2、套袋的材料和规格。选用套袋材料是套袋成败条件之一。套袋材料要求质轻、透光、透气、不易破损,经济方便,
Bagging selected species is a kind of technical measures to purify and rejuvenate varieties. Bagging than the general kind of seed retention significantly improved. The determination of the “safflower Daikin Yuan” capsule seeds within the average number of seed bagging species than the current remaining species increased by 62%, 1000 seeds bagging seeds than the general to increase 27 mg. The bagging seeds are mature, uniform and shiny, and emerge after sowing and grow consistently. Bagging technology must keep a few points: 1, bagging time. The purpose of bagging is to effectively ensure that the flowers in the middle of the squid are safely isolated when fertilized and grow normally when stout. Bagging time should not be too late too late, the most appropriate bagging time is full of early flowering bagging, bagging at the end of flowering. 2, bagging materials and specifications. Selection of bagging material is one of the conditions for success or failure of bagging. Bagging material requirements of light, light, breathable, not easily damaged, economical and convenient,