选择不同直链淀粉含量的亲本,分别以7种形式交叉配组,共配100多个组合,试验结果表明,要选育中等直链淀粉含量的籼型杂交稻,亲本一方的直链淀粉若是高值,另一亲本应是低值。高值亲本表现正向部分显性;中直与中植亲本或中值与低值亲本搭配也可,尽可能避免中值与高值和高值与高值配组。 The parents of different amylose content were selected and crossed with seven forms, respectively, with more than 100 combinations. The results showed that to select indica hybrid rice with medium amylose content, if the parental amylose was High value, another parent should be low value. High-positive parents showed positive part of the dominant; in the straight and the planting of the parent or the median and low-level parents with, as far as possible to avoid the median and high value and high value and high value with the group.