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种子发芽率和发芽势的高低,是能否获得全苗、壮苗和较高产量的关键。几年来,对于玉米白单9制种的收获期,存在着不同的看法和争议。有的人主张收获期要提前(在蜡熟期),理由是提前收获气温较高,在对制种产量和种子发芽率影响不大的情况下,尽快将种子水分降到安全水以下。有人持反对意见,主张在完熟期收获。这样不仅能获得较高的制种产量,
Seed germination rate and the level of germination potential, is the key to access to seedlings, seedlings and higher yield. Over the past few years, there have been different opinions and controversies regarding the harvest period of the maize white Dan 9 seed. Some people advocate the harvest period to advance (in the wax maturity), on the grounds that early harvest temperature is high, in the seed production and seed germination rate little effect, as soon as possible to reduce the seed moisture to safe water below. Some people hold objections, advocating harvest in the mature period. This will not only be able to obtain higher seed production,