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1 亲本播差期安排在制种播差期安排上,采用父包母原则,即播差上要保证父本始穗期较母本早1～2d。一般做法是:先播一期父本,3～4d后播母本,再隔4d 左右播二期父本。2 培育多蘖壮秧,提高秧苗素质该组合制种父母本播种相间时间短,要求同时平整父母本秧田,并且保证秧田面积要足,一般制667m~2Ⅱ优7号,父本秧田66.7m~2,本母秧田200m~2,通过稀播均播培
A parent sowing period arrangements in the sowing sowing schedule, the use of the principle of the parent package sowing, sowing to ensure that the male parent earburn earlier than the mother 1 ~ 2d. The general approach is: first sowing a paternal, 3 ~ 4d after sowing the mother, and then broadcast about 4d about two paternal. 2 to cultivate more tiller seedling seedlings to improve the quality of seedlings of the combination of the sowing time is short, requiring the same time the parent seedling field, and to ensure that the area of seedling to foot, the general system of 667m ~ 2 Ⅱ 7, father of 66.7m ~ 2, the mother of seedlings Tian 200m ~ 2, through the sowing are broadcast Pei