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赣化2号(IR24×献党1号)是使用药剂诱导母本产生非遗传性的雄性不育,通过父本授以正常花粉配制而成的强优杂交水稻组合.1981～1983年,赣榆县朱堵乡农科站种植赣化2号曾连续三年获得亩产1800斤以上的高产量,表明利用化杀方法生产的杂种增产效果显著.由于化杀制种受到的干扰因素较多,大面积上制种杂种纯度不高,产量较低,已成为当前推广种植赣化2号组合的障碍.为此,近两年我们探讨了化杀制种的关键技术,以求制种高产优质.1982年进行小面积试配,亩产达到138.9斤,纯度为95.4%.1983年制种15亩,平均亩产111.2斤,高产田块亩产达187.4斤,平均纯度97%.现将作者初步认识的化杀制种的几个关键技术整理如下.
Ganghi No.2 (IR24 × XianDang No.1) is a high-yielding hybrid rice combination using non-hereditary male-sterility inducing female parent with normal pollen prepared by male parents. From 1981 to 1983, Yuxian Zhu blocking Township Agricultural Station planting Jiangxi 2 for three consecutive years to obtain a yield of more than 1800 pounds per mu, indicating that the use of killing methods to increase the yield of hybrids significantly. , On the large area hybrid hybrids is not high purity, low yield, has become the current promotion of planting combination of Gan 2 combination of obstacles.To this end, the past two years we explored the key technologies to kill species in order to produce high yield Quality .1982 small area trial, the yield reached 138.9 pounds, a purity of 95.4% .In 1983, planted 15 acres, the average yield of 111.2 catties, high-yield plots yield 187.4 pounds, with an average purity of 97% The author of the preliminary understanding of the killing of several key technologies are summarized below.