论文部分内容阅读
1983年,聊城地区棉种公司为了加速繁殖棉花苗头品种,交给地区种猪场原种30公斤,通过硫酸脱绒精选后剩19.5公斤,播种面积102亩,结果收获种子9500公斤,繁殖系数达317倍。主要技术措施如下: 1.选择土壤肥力较高的地块作繁种田。选择土壤肥力较高和有灌溉条件的地块作繁种田,可以保证棉花单株生长发育健壮,发挥单株增产潜力,以求群体增产。
In 1983, Liaocheng cottonseed companies in order to accelerate the breeding of cotton seedling varieties, to the area of breeding stock 30 kg, 19.5 kg left after the selection of sulfuric acid depilation, sown area of 102 acres, the results of the harvest of seeds 9500 kilograms, the breeding coefficient Up to 317 times. The main technical measures are as follows: 1. Select the plots of high soil fertility for farming. Selecting plots with high soil fertility and irrigation conditions as a breeding farm can ensure the robust growth and development of cotton plants and exert the potential for plant yield increase in order to increase the population.