A Comparative Study On The Adaptability Of 51 Wheat And Maize Varieties(lines) In The Guanzhong Region Of Shaanxi Province

Wheat and maize are the most important crops in Guanzhong area of Shaanxi province, the two crops have important significance to ensure the food supply of Shaanxi province. Improved variety is the key to realize high yield of wheat, and a good variety can exert its potential of high yield or not lies in whether it can adapt to local conditions of environmental and agriculture production. Therefore, the adaptation of a species in a region is very important. This study aims to study the adaptability of 51 wheat and maize varieties(lines) in different regions of Shaanxi Guanzhong(Yangling, Yongshou, Jingyang) and choose some suitable varieties(lines) for different area for production. The main results were as follow:1. The nine agronomic traits of comprehensive evaluation and quantitative were analyzed by the grey system correlation analysis principle, on 32 varieties in Yangling area, Xinong 558 weighted association with maximum degree with control cultivar Xiaoyan 22 is most close to the initially the in Yangling area with the better comprehensive characters, and is suitable to be popularized in Yangling.2. 9 agronomic traits of 32 varieties in Yongshou area were evaluated comprehensively by the grey relational degree analysis.Yunhan 805 weighted incidence degree was the biggest,and most close to reference Variety Jinmai 47, which can state that it was suitable to be plante in Yongshou area and same ecological zone.3. 13 agronomic traits of 18 maize varieties were evaluated comprehensivelyby grey correlation degree analysis in Jingyang region. Jinbei 288 species performed best, which can indicate that Jinbei 288 had strong adaptability and can be generalized in Jingyang region.