Study on Optimum Seeding Rate of Medium-gluten Wheat Aikang 58

The effects of seeding rate on the growth and development and yield of Aikang 58 were studied.The results showed that the seedling number,population quantity and ear number increased obviously,the grain number per spike reduced,and the lodging resistance decreased with the increase of seedling rate.When the seedling rate was less than 112.5 kg/hm2,there was no obvious effect on the 1 000-grain weight.When the seedling rate was more than 112.5 kg/hm2,the 1 000-grain weight had a decreasing trend.When the seedling rate was 112.5 kg/hm2,the three yield factors were harmonious,and the high yield was easy to be obtained.