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在冬春农闲季节,利用家庭辅助劳力进行棉种粒选,可以淘汰杂籽、劣籽,选出纯正健壮籽,对提高棉籽发芽率、保证一播全苗、争取壮苗,进而夺取丰收有着重要作用。粒选棉种的经验,主要有以下几点: (一)留种籽棉最好先进行瓣选。在晒花时或室内,在留种籽棉中用手挑选多籽大瓤的留种。俗话说:‘七籽八成,八籽九成,九籽十成’。意思指每瓤籽数多,来年收成也多,有九粒种子的大瓤作种可得十成收成。实际上选每瓤有八、九粒籽的大瓤都很好。如果用两手将棉瓤拉长看一看,选取绒长、绒厚的棉瓤就更好了。
In the winter and spring slack season, the use of family-assisted labor for cotton seed selection, you can eliminate hybrid seed, inferior seed, select the pure and healthy seed, to improve the germination rate of cottonseed, to ensure a full seedlings, for strong seedlings, and then capture the harvest Important role. The experience of particle selection of cotton, the main points are as follows: (a) leave the seed cotton preferably the first flap election. In the sunburn or indoors, in the remaining seed cotton hand-picked multi-seed big-leaved species. As the saying goes: ’Seven seed Bacheng, eight seed Jiucheng, nine seed ten into’. The meaning means that there are many seeds for each seed, and there are also many harvests in the coming year. In fact, it is good to have eight or nine seeds per 瓤. If you use both hands to take a look at the cotton stretch, select velvet long, velvet thick cotton 瓤 better.