90系列新化学杀雄剂试验初报

A Report on the Trial of the 90 Series Male Sterilants in Rice

以化学杀雄剂１，２号为对照，介绍了新研制的９０系列８个杀雄新药剂，经４年７季的田间试验，新药剂优于对照，以及用９０６药剂制种亩产１５０ｋｇ以上的配套技术。

The field experiments of the 90 series male sterilants were conducted in seven cropping seasonsover four years.It was found that the male sterilants 906 and 903 could effectively sterilize the male gametand the parent sterilized by them obtained a bagged non-seed set over 95%,an outcrossing rate above 30%,superior to that by the check Shaxiongji 2(or Sterilant 2).Out of the tested chemicals,906 showed the high-est outcrossing rate and a stable high yield over 2.25 t/ha in hybrid seed production.