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汾阳县十年九春旱.高粱采用分期播种法在旱地制种很难捉苗,产量不高.1984年以来,汾阳县种子公司进行了晋杂4号高粱部分父本催芽同期播种的试验,用以调节父母本花期,效果很好.1987年,该县相子垣村采用部分父本催芽同期播种法制种130亩,基本全亩,花期相遇,平均亩产母本115公斤,比邻村采用分期播种法制种的增产287.5%.
Fenyang County ten years of drought in 1998. Sorghum staging seeding method is difficult to catch seedlings in dry land, yield is not high. Since 1984, Fenyang County seed companies Jin 4th sorghum part of the germination of the same period sowing Test, used to adjust the flowering parents, the effect is very good .1987, the county Xiangzi Yuancun adopted parthenogenetration of the same period of seeding law seed 130 acres, the basic whole acres, flowering encounter, the average yield of 115 kilograms of mother, The village planted seed production by law 287.5% increase.