Changing Trend Of Agronomic Traits Of Spring Wheat Varieties In Jilin Academy Of Agricultural Sciences In Different Eras

Wheat is one of the main food crops in China, cultivated area and total output after rice. Wheat is a staple food for people in the north of China, since ancient times is an important food nourishes the body. Jilin province is located in the south of northeast spring wheat region of our country, belongs to the early maturing spring wheat region, growth period is only80-90days, not only short growth period, the special climate conditions and the prophase of drought little rain, high temperature and rainy period, resulting in the growth period of Spring Wheat disease is various, and the wheat yield levels lower than the national average. Jilin Provincial Academy of Agricultural Sciences, Jilin Province as the research center of Agricultural Sciences, Jilin province of agricultural scientific research and new variety breeding played an important role in the promotion. So the study on Breeding of Spring Wheat Varieties in Jilin Province Academy of Agricultural Sciences, analysis of evolution in our hospital from twentieth Century60to spring wheat agronomic traits, has the important guiding significance to the breeding of spring wheat varieties after the.With the spring wheat varieties in our hospital replacement, yield increased greatly, changed its yield. Embodied in the yield per plant, grain number of main spike, grain weight per spike,1000grain weight and increase, length of main spike; that after2000, Jilin Academy of Agricultural Sciences in spring wheat variety breeding of the basic realization of the combination of high yield and quality. From our hospital wheat variety evolution and correlation analysis can be clear, the high yield wheat breeding objectives: grain number of main spike increase in weight, or increase the weight based on keeping the grain number of main spike.