Peanut Varieties: Drought Resistance Identification and Drought Resistance Indices’ Evaluation

doi:10.11924/j.issn.1000-6850.casb2021-0236

Abstract

Abstract:

The purpose of this study is to screen out peanut varieties with strong drought resistance, and to provide a research basis for breeding drought resistant peanut varieties and functional verification of drought resistance genes. The drought resistance of 13 peanut varieties was identified and the drought resistance indices were obtained by measuring and analyzing the physiological indexes and phenotypes under well-watered and drought conditions. The results are as follows: there are different correlations between these indices, and the correlation coefficients range from 0.070 to 0.683. The trend of CDC and D value of the 13 peanut varieties are consistent. The results of principal component analysis indicate that 6 common factors, such as total biomass and soluble sugar, could reflect 89.97% of the original data information of peanut drought resistance. According to cluster analysis, the 13 varieties are divided into 4 groups consisting of high drought-resistant, moderate drought-resistant, drought-sensitive and high drought-sensitive varieties at the threshold of 5, among which, L147 and L149 are high drought-resistant cultivars. The results indicate that the total biomass, relative water content, POD, and soluble sugar could be used as rapid identification indices for peanut drought resistance. L186, L147, L221 and L149 are identified as drought resistant varieties.

Key words: Arachis hypogaea, drought resistance, comprehensive appraisal, physiological indices, drought resistance indices, principal component analysis, membership function

CLC Number:

S565.2

Liu Bokuan, Zhao Nannan, Cui Shunli, Li Xiukun, Liu Yingru, He Meijing, Hou Mingyu, Yang Xinlei, Mu Guojun, Liu Lifeng. Peanut Varieties: Drought Resistance Identification and Drought Resistance Indices’ Evaluation[J]. Chinese Agricultural Science Bulletin, 2021, 37(19): 27-35.

Figures/Tables 7

References 31

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品种	丙二醛	脯氨酸	可溶性糖	超氧化物歧化酶	过氧化物酶	相对电导率	叶片相对含水量	叶绿素a	叶绿素b	胡萝卜素
1	0.750	0.443	1.044	0.759	0.578	0.950	0.947	0.628	0.620	0.628
2	0.774	0.385	1.472	1.179	0.705	0.775	1.061	0.545	0.512	0.640
3	0.868	0.437	1.459	2.572	0.761	1.026	0.889	0.530	0.576	0.631
4	0.572	0.517	0.766	1.199	0.489	0.948	0.967	0.482	0.458	0.560
5	0.579	0.555	0.575	0.497	0.483	0.819	0.917	0.388	0.380	0.445
6	1.104	0.546	0.870	0.924	1.404	0.962	1.017	0.533	0.539	0.549
7	0.740	0.408	0.952	1.114	0.702	0.953	0.958	0.382	0.380	0.525
8	0.616	0.494	1.016	1.158	0.611	1.037	0.978	0.460	0.407	0.572
9	0.653	0.246	1.009	0.784	0.472	0.730	0.964	0.357	0.339	0.374
10	1.100	0.695	1.261	0.997	0.495	0.742	0.941	0.362	0.331	0.464
11	1.099	0.289	1.098	1.093	0.645	0.774	1.129	0.425	0.333	0.496
12	0.725	0.512	1.096	0.827	0.293	0.849	0.955	0.458	0.536	0.540
13	0.953	0.523	0.485	1.039	0.649	0.951	0.976	0.750	0.876	0.912
平均值	0.810	0.465	1.008	1.088	0.637	0.886	0.977	0.484	0.484	0.564
标准差	0.197	0.118	0.295	0.490	0.263	0.108	0.062	0.114	0.154	0.130
变异系数	0.244	0.253	0.292	0.451	0.412	0.122	0.064	0.235	0.317	0.230

品种	丙二醛	脯氨酸	可溶性糖	超氧化物歧化酶	过氧化物酶	相对电导率	叶片相对含水量	叶绿素a	叶绿素b	胡萝卜素
1	0.750	0.443	1.044	0.759	0.578	0.950	0.947	0.628	0.620	0.628
2	0.774	0.385	1.472	1.179	0.705	0.775	1.061	0.545	0.512	0.640
3	0.868	0.437	1.459	2.572	0.761	1.026	0.889	0.530	0.576	0.631
4	0.572	0.517	0.766	1.199	0.489	0.948	0.967	0.482	0.458	0.560
5	0.579	0.555	0.575	0.497	0.483	0.819	0.917	0.388	0.380	0.445
6	1.104	0.546	0.870	0.924	1.404	0.962	1.017	0.533	0.539	0.549
7	0.740	0.408	0.952	1.114	0.702	0.953	0.958	0.382	0.380	0.525
8	0.616	0.494	1.016	1.158	0.611	1.037	0.978	0.460	0.407	0.572
9	0.653	0.246	1.009	0.784	0.472	0.730	0.964	0.357	0.339	0.374
10	1.100	0.695	1.261	0.997	0.495	0.742	0.941	0.362	0.331	0.464
11	1.099	0.289	1.098	1.093	0.645	0.774	1.129	0.425	0.333	0.496
12	0.725	0.512	1.096	0.827	0.293	0.849	0.955	0.458	0.536	0.540
13	0.953	0.523	0.485	1.039	0.649	0.951	0.976	0.750	0.876	0.912
平均值	0.810	0.465	1.008	1.088	0.637	0.886	0.977	0.484	0.484	0.564
标准差	0.197	0.118	0.295	0.490	0.263	0.108	0.062	0.114	0.154	0.130
变异系数	0.244	0.253	0.292	0.451	0.412	0.122	0.064	0.235	0.317	0.230

品种	主茎高	侧枝长	总分枝数	结果枝数	地上部干重	根干重	单株荚果重	总生物量
1	0.638	0.557	0.931	0.877	0.629	0.920	0.445	0.592
2	0.518	0.507	1.026	0.996	0.745	1.032	0.421	0.620
3	0.590	0.590	0.972	0.988	0.520	1.063	0.401	0.631
4	0.658	0.649	1.074	0.950	0.970	1.099	0.678	0.864
5	0.601	0.661	0.942	0.917	0.886	1.053	0.414	0.694
6	0.525	0.525	0.942	1.017	0.751	1.063	0.517	0.687
7	0.543	0.563	0.996	0.965	0.710	1.103	0.625	0.774
8	0.602	0.648	0.817	0.952	0.616	1.019	0.378	0.556
9	0.685	0.775	0.811	0.928	0.761	1.015	0.429	0.683
10	0.460	0.467	0.779	0.824	0.568	1.035	0.233	0.493
11	0.355	0.309	0.942	0.884	0.652	1.015	0.384	0.591
12	0.444	0.473	0.817	0.824	0.494	0.957	0.210	0.409
13	0.494	0.537	1.006	0.955	0.586	1.031	0.318	0.471
平均值	0.547	0.558	0.927	0.929	0.684	1.031	0.420	0.620
标准差	0.094	0.114	0.093	0.062	0.139	0.051	0.133	0.125
变异系数	0.172	0.204	0.101	0.066	0.204	0.049	0.316	0.201

品种	主茎高	侧枝长	总分枝数	结果枝数	地上部干重	根干重	单株荚果重	总生物量
1	0.638	0.557	0.931	0.877	0.629	0.920	0.445	0.592
2	0.518	0.507	1.026	0.996	0.745	1.032	0.421	0.620
3	0.590	0.590	0.972	0.988	0.520	1.063	0.401	0.631
4	0.658	0.649	1.074	0.950	0.970	1.099	0.678	0.864
5	0.601	0.661	0.942	0.917	0.886	1.053	0.414	0.694
6	0.525	0.525	0.942	1.017	0.751	1.063	0.517	0.687
7	0.543	0.563	0.996	0.965	0.710	1.103	0.625	0.774
8	0.602	0.648	0.817	0.952	0.616	1.019	0.378	0.556
9	0.685	0.775	0.811	0.928	0.761	1.015	0.429	0.683
10	0.460	0.467	0.779	0.824	0.568	1.035	0.233	0.493
11	0.355	0.309	0.942	0.884	0.652	1.015	0.384	0.591
12	0.444	0.473	0.817	0.824	0.494	0.957	0.210	0.409
13	0.494	0.537	1.006	0.955	0.586	1.031	0.318	0.471
平均值	0.547	0.558	0.927	0.929	0.684	1.031	0.420	0.620
标准差	0.094	0.114	0.093	0.062	0.139	0.051	0.133	0.125
变异系数	0.172	0.204	0.101	0.066	0.204	0.049	0.316	0.201

指标	丙二醛	脯氨酸	可溶性糖	超氧化物歧化酶	过氧化物酶	相对电导率	叶片相对含水量	叶绿素 a	叶绿素 b	胡萝卜素	主茎高	侧枝长	总分枝数	结果枝数	地上部干重	根干重	单株荚果重
脯氨酸	0.166	—
可溶性糖	0.206	-0.225	—
超氧化物歧化酶	0.161	-0.104	0.536	—
过氧化物酶	0.519	0.041	0.007	0.202	—
相对电导率	-0.156	0.198	-0.181	0.454	0.366	—
叶片相对含水量	0.409	-0.438	0.116	-0.194	0.270	-0.337	—
叶绿素a	0.179	0.096	-0.205	0.170	0.274	0.478	0.045	—
叶绿素b	0.140	0.175	-0.266	0.178	0.193	0.473	-0.143	0.953^**	—
胡萝卜素	0.180	0.166	-0.198	0.278	0.175	0.504	0.019	0.930^**	0.921^**	—
主茎高	-0.711^**	-0.111	-0.175	0.025	-0.075	0.307	-0.562^*	-0.008	-0.011	-0.135	—
侧枝长	-0.729^**	-0.081	-0.278	-0.046	-0.144	0.197	-0.597^*	-0.135	-0.064	-0.190	0.926^**	—
总分枝数	-0.084	-0.137	-0.211	0.268	0.291	0.327	0.179	0.464	0.387	0.485	0.105	-0.050	—
结果枝数	-0.067	-0.225	-0.052	0.398	0.691^**	0.477	0.101	0.308	0.247	0.312	0.340	0.324	0.603^*	—
地上部干重	-0.440	-0.085	-0.434	-0.343	0.083	-0.129	0.105	-0.233	-0.312	-0.312	0.478	0.440	0.479	0.357	—
根干重	-0.007	0.125	-0.172	0.329	0.341	0.183	-0.061	-0.257	-0.222	-0.073	0.116	0.206	0.480	0.591^*	0.504	—
单株荚果重	-0.327	-0.249	-0.231	0.071	0.344	0.352	0.048	-0.057	-0.146	-0.101	0.506	0.353	0.660^*	0.596^*	0.734^**	0.591^*	—
总生物量	-0.373	-0.240	-0.183	0.071	0.247	0.158	-0.033	-0.276	-0.345	-0.322	0.557^*	0.449	0.561	0.532	0.830^**	0.664^*	0.944^**