Abstract
The study is conducted to determine the reactions of different mungbean varieties to the test-environment in regional trials, the agronomic traits of different kinds of mungbean expressed and the impact of different agronomic traits on the output at the same site, ultimately provide improved methods and ideas for mungbean cultivation and help improve the experimental design. Based on the characteristics of experimental samples in regional trials and the data analysis, partial least squares regression is adopted to analyze the experimental data of the national regional trials of mungbean in spring from 2009 to 2011 and derived the production standard regression coefficients graph, established production model analysis of four high-yielding varieties of mungbean between the agronomic traits and the yield. The study is valuable for clarifying the characteristics of different varieties, evaluating varieties objectively. Identifying the main factors affecting yield performance, fully demonstrating the regularity of test data. All would provide improved methods and new ideas for mungbean breeding and the designing of regional pilot programs and provide the basis for the improvement of the production and cultivation techniques.
Highlights
Mungbean is an important cultivated crop in arid and semiarid regions of our country
With the characteristics of wide adaptability, longer suitable sowing period and short growth period, strong drought resistance, mungbean plays an important role in the agricultural restructuring and in improving the production, quality and farming efficiency (Lin et al, 2002)
Nation-wide regional trials of mungbean varieties is an experiment conducted at different ecological zones jointly for identification of varieties suitable area and for providing scientific evidences for mungbean cultivation (Gao et al, 2005)
Summary
Mungbean is an important cultivated crop in arid and semiarid regions of our country. With the characteristics of wide adaptability, longer suitable sowing period and short growth period, strong drought resistance, mungbean plays an important role in the agricultural restructuring and in improving the production, quality and farming efficiency (Lin et al, 2002). Nation-wide regional trials of mungbean varieties is an experiment conducted at different ecological zones jointly for identification of varieties suitable area and for providing scientific evidences for mungbean cultivation (Gao et al, 2005). This study intends to adopt partial least squares regression analysis, through decomposing and screening, this method could extract the most powerful explanatory variables to fully demonstrate the regularity of regional trials data, that is the rule of different test environments for mungbean varieties (agronomic traits) influence, performance of agronomic traits of different varieties of mungbean under the test environment and the performance of agronomic traits of mungbean cultivars. The results are purposed to provide academic references for agricultural work and research
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