Analysis and Comprehensive Evaluation of Main Traits of Soybean in Inner Mongolia from 2002 to 2021

doi:10.11924/j.issn.1000-6850.casb2022-0022

Abstract

Abstract:

The paper aims to comprehensively analyze the agronomic and quality traits of soybean varieties in the Inner Mongolia Autonomous Region, and to provide theoretical reference for the selection of parents and superior varieties for future breeding of soybean varieties in Inner Mongolia. Correlation analysis, principal component analysis, TOPSIS analysis and cluster analysis were used to comprehensively analyze 6 traits of 109 soybean varieties in Inner Mongolia. The genetic diversity index of the 6 traits ranged from 2.5964 to 2.8692, the coefficient of variation ranged from 6.79% to 20.1%, in which the variation coefficient of protein content was the lowest and the heredity was the most stable. Three principal components were selected by principal component analysis, the cumulative genetic contribution rate was 79.98%, and the evaluation equation S=0.48S₁+0.31S₂+0.21S₃ was established. Using principal component analysis and TOPSIS analysis, 7 varieties with high comprehensive ranking were selected, which could be used as good parents in future new variety breeding. The 109 soybean varieties were divided into five groups by cluster analysis. The Ⅰ group had the best comprehensive character and could be regarded as the excellent soybean varieties in Inner Mongolia, while the Ⅴ group had only one variety ‘Dengke 2’ with a very short growth period, which could be promoted in areas with short frost-free period or participate in the breeding of extremely early maturing varieties. Soybean varieties in Inner Mongolia are diverse and the soybean breeding level is also improved year by year, but there is a lack of high-quality soybean varieties, so it is necessary to pay more attention to soybean breeding with high oil and high protein contents. The selected parents are mostly from Heilongjiang Province and Jilin Province, and the local soybean varieties have not been well developed and utilized, this is also a key factor restricting the further improvement of soybean breeding in Inner Mongolia.

Key words: soybean, principal component analysis, TOPSIS analysis, clustering analysis, evaluation

CLC Number:

S565.1

YU Zhonghao, ZHOU Wei, LI Zhigang, LI Ziwen, JIA Juanxia, ZHOU Yaxing. Analysis and Comprehensive Evaluation of Main Traits of Soybean in Inner Mongolia from 2002 to 2021[J]. Chinese Agricultural Science Bulletin, 2022, 38(34): 14-21.

Figures/Tables 7

References 25

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项目	生育期/d	蛋白质含量/%	脂肪含量/%	产量/(kg/hm²)	株高/cm	百粒重/g
均值	111.64	39.70	21.49	2404.20	80.36 c	19.65
最大值	126.50	46.22	39.20	3531.00	130.00 c	35.00
最小值	85.00	22.46	17.19	1513.50	37.50 c	15.00
变异系数/%	7.01	6.79	10.82	20.10	16.04	12.23
变异幅度	41.50	23.76	22.01	2017.50	92.50	20.00
标准偏差	7.83	2.69	2.33	483.30	12.89	2.40
遗传多样性指数H'	2.6509	2.7044	2.9578	2.5964	2.6629	2.8692

项目	生育期/d	蛋白质含量/%	脂肪含量/%	产量/(kg/hm²)	株高/cm	百粒重/g
均值	111.64	39.70	21.49	2404.20	80.36 c	19.65
最大值	126.50	46.22	39.20	3531.00	130.00 c	35.00
最小值	85.00	22.46	17.19	1513.50	37.50 c	15.00
变异系数/%	7.01	6.79	10.82	20.10	16.04	12.23
变异幅度	41.50	23.76	22.01	2017.50	92.50	20.00
标准偏差	7.83	2.69	2.33	483.30	12.89	2.40
遗传多样性指数H'	2.6509	2.7044	2.9578	2.5964	2.6629	2.8692

	生育期	蛋白质含量	脂肪含量	产量	株高	百粒重
生育期	1
蛋白质含量	-0.2825^**	1
脂肪含量	0.2819^**	-0.7849^**	1
产量	0.5509^**	-0.1467	0.2401^*	1
株高	0.4808^**	0.0017	-0.0444	0.3020^**	1
百粒重	-0.3015^**	0.1990^*	-0.1360	0.0155	-0.1794	1

	生育期	蛋白质含量	脂肪含量	产量	株高	百粒重
生育期	1
蛋白质含量	-0.2825^**	1
脂肪含量	0.2819^**	-0.7849^**	1
产量	0.5509^**	-0.1467	0.2401^*	1
株高	0.4808^**	0.0017	-0.0444	0.3020^**	1
百粒重	-0.3015^**	0.1990^*	-0.1360	0.0155	-0.1794	1

性状	PC1	PC2	PC3
生育期	0.52	0.32	-0.01
蛋白质含量	-0.46	0.50	0.09
脂肪含量	0.47	-0.51	0.08
产量	0.43	0.28	0.33
株高	0.29	0.54	0.05
百粒重	-0.16	-0.13	0.94
特征值	2.2891	1.5080	1.0015
累计贡献率/%	38.15	63.28	79.98
贡献率权重	0.48	0.31	0.21