玉米杂交种邯丰79高产高效制种技术

High Yield and High Efficiency Seed Production Techniques of Maize Hybrid Variety Hanfeng 79

为掌握玉米杂交种邯丰79的高效制种技术,指导优质种子繁育工作,以邯丰79的母本H7和父本H9为试验材料,研究了母本种植密度、父母本行比、父母本播期和施肥量对邯丰79制种产量的影响。结果表明:邯丰79高产高效制种技术为父母本同期(4月18日)播种,父母本行比1∶5,母本种植密度75 000株/hm^2,经济施肥量为氮(N)210 kg/hm^2、磷(P2O5)165 kg/hm^2、钾(K2O)180 kg/hm^2。

In order to grasp the high efficiency seed production techniques of maize hybrid variety Hanfeng 79 to guide the breeding of high quality seeds, using the parents of Hanfeng 79 as material, the effects of the planting density of maternal line, the ratio between parental lines, the sowing date of parents and the fertilization amount on the seed production were studied. The results indicated that parents should be sowed at the same time （April 18th）, the suitable ratio between parental lines was 1：5, the density of maternal line was 75000 plants per hectare, and the optimum fertilization amount was approximately N 210 kg/hm2, P205 165 kg/hm2 and K20 180 kg/hm2.