僵苗现象在常规早稻中是常见的。在秋季制种中,虽然气候有利于秧苗生长,但如果忽视了育秧技术。也会发生僵苗。1990年我市120亩秋制父本秧苗,就有23亩不同程度的发生侵苗。僵苗父本秧苗素质差,移栽后,前期分蘖慢,中期茎秆细,后期花粉少,异交结实率低,据调查,平均每亩减产20～30 Stirring phenomenon is common in conventional rice. In autumn seed production, although the climate is conducive to the growth of seedlings, but neglected nursery skills. There will be stiff seedlings. In 1990 the city of 120 acres of autumn paternal seedlings, there are 23 acres of varying degrees of invasion of seedlings. Stiff parent seedling poor quality of seedlings, transplanting, the early tiller slow, medium stem thin, late pollen less, outcrossing rate is low, according to the survey, the average yield per acre 20 to 30