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1.提高亲本种子纯度和质量 (1)实行自交与姊妹交隔年交替繁殖,采取一套二繁的办法保证了自交系种子的纯度和质量。即:一套,在原原种隔离繁殖区里,严格去杂去劣的基础上,将上年套袋选择的果穗种成穗行,在穗行选择200～400株生长整齐优良的典型植株雌雄穗套入一个袋中(每天上午9～11时用小木棍轻拍纸袋,授粉在袋中进行,完全隔绝了外界花粉的侵入)或姊妹交,收获后依据有该自交系穗型、粒型、粒色的典型果穗,混合脱粒进行繁殖。二繁,在繁殖隔离区全部用上年套袋的种子地膜覆盖播种,严格去杂去劣,收获后作下
1. To improve the purity and quality of the parental seed (1) Inbreeding and sibling year alternating breeding, to take a set of two complicated ways to ensure the purity and quality of inbred seed. That is, a set of, in the original species isolation and breeding area, strictly to miscellaneous and poor on the basis of the bagging the ear of the year before the election ear rows in the ear line to choose 200 to 400 plants grow fine neat and elegant male and female Spike into a bag (9-11 am each day patted the paper bag with a small stick, pollination carried out in the bag, completely isolated from the invasion of pollen from outside) or siblings, after harvest based on the inbred panicle type, grain Type, the typical color of the ear, mixed threshing breeding. Second Fan, isolation and breeding areas in the past year all the bagged seeds cover the film sowing, go to the wrong to go bad, harvested after the next