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1 根据亲本特性,准确安排播差期1.1 亲本特性1.1.1 母本母本具有比珍汕97A播始历期长(长约26d)、植株高、分蘖力强、穗型大、花期长、异交率高等六大优点。特别是母本成穗率高达80%以上,比珍汕97A高8～10个百分点。母本幼穗分化期为32d左右,珍汕97A幼穗分化期为29d左右。1.1.2 父本父本具有比明恢63播始历期短(短约8d)、植株矮、分蘖力弱、穗型小、花期短、对“九二○”钝感
1 Based on the characteristics of the parents, the sowing date was accurately arranged. 1.1 Parental Characteristics 1.1.1 The female parent had a longer duration (about 26 days) than the original 97A of Zhenshan. The plant height, tillering ability, panicle size, Outgoing rate of six advantages. In particular, the female ear into the ear as high as 80%, higher than the Zhenshan 97A 8 to 10 percentage points. Female parent panicle differentiation of about 32d, Zhen Shan 97A panicle differentiation period of about 29d. 1.1.2 The male parent had a shorter duration (about 8 days shorter) than the Minghui63, short plants, poor tillering ability, small spikelet, short flowering period, insensitive to “920”