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1 玉米制种芽率偏低的现状1999年我公司在承德7个乡镇65个村进行玉米制种,播种面积4667hm~2,48个组合,从芽率情况看,芽率不到85%。如478做母本的芽率普遍偏低;同一组合在不同地块土层较薄的芽率相对较低;不同组合水分超过15%的芽率相对较低。从分布看,旱情严重的地区芽率相对较低;不盖地膜的芽率相对较
1 corn seed germination rate is low in 1999 I company in Chengde 7 townships 65 villages of corn, sowing area 4667 hm ~ 2, 48 combinations, from bud rate situation, bud rate of less than 85%. For example, the rate of germination of maternal mother was lower than that of maternal mother 478, while the rate of shoots with the same combination of soil thinner in different plots was relatively lower. The rate of shoots with different combinations of water content exceeding 15% was relatively low. From the distribution of view, the incidence of drought in the area of relatively low buds; not cover the film bud rate is relatively