Salt Tolerance of Peanut Varieties at Seedling Stage: Assessment and Screening

doi:10.11923/j.issn.2095-4050.cjas20190900190

Abstract

Abstract:

To ascertain the differences of various peanut varieties under salt tolerance and screen salt-tolerant peanut varieties to further develop peanut production in saline-alkaline areas, we studied the emergence rate, seedling emergence rate, first pair of side branch length, plant height and dry weight of 30 peanut varieties which are widely popularized in recent years through pot experiment under normal or 0.3% salt stress treatment, and conducted the clustering and principal component comprehensive analysis to analyze these indexes. The results showed that: according to the salt tolerance, these 30 peanut varieties could be divided into 5 types (high salt tolerant, salt tolerant, middle salt tolerant, salt sensitive and high salt sensitive type; the prediction equation of salt tolerance of peanut variety was established by stepwise regression, F=2.694RPH+1.34RPW+2.539REV-3.353(R ²=0.958); the relative plant height, relative plant dry weight and relative seedling emergence rate were also examined as the main identification indexes of salt tolerance of peanut varieties, among which, the relative plant height had a greater direct impact on the salt tolerance of peanut varieties; there was a significant correlation between the grain size and the salt tolerance of peanut with the correlation coefficient of 0.614. In conclusion, the salt tolerance of peanut varieties is significantly correlated with their grain size, and the relative plant height, relative plant dry weight and relative seedling emergence rate of each variety can be used as the main identification indexes for their salt tolerance.

Key words: Peanut Variety, Salt Stress, Grain Size, Salt Tolerance, Assessment, Identification Indexes, Principal Component Analysis

CLC Number:

Q945.78
S562

Wen Saiqun, Yuan Guang, Zhang Zhimeng, Zhang Guanchu, Ci Dunwei, Ding Hong, Xu Yang, Jiang Changsong, Dai Liangxiang. Salt Tolerance of Peanut Varieties at Seedling Stage: Assessment and Screening[J]. Journal of Agriculture, 2021, 11(6): 29-35.

Figures/Tables 9

References 25

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编号	品种	百仁质量/g	编号	品种	百仁质量/g	编号	品种	百仁质量/g
1	花育25	87.35	11	中丰	98.96	21	鲁花12	76.45
2	花育33	90.89	12	花育23	57.20	22	青蓝2号	56.76
3	花育28	60.57	13	汕油27	61.06	23	丰花6	101.62
4	花育20	74.75	14	辽花5号	82.51	24	冀花13	72.57
5	粤油200	102.67	15	丰花5	89.70	25	花育32	65.97
6	仲恺花1	78.09	16	豫花16	79.86	26	海花1号	83.52
7	粤油101	105.80	17	冀花2号	103.36	27	汕油2	85.44
8	阜花11	78.23	18	仲恺花2	79.05	28	金花1012	53.73
9	莲花3号	78.01	19	仲恺花6	85.47	29	大青兰	95.77
10	鲁花10号	96.89	20	海花2号	81.00	30	潍花6	65.80

编号	品种	百仁质量/g	编号	品种	百仁质量/g	编号	品种	百仁质量/g
1	花育25	87.35	11	中丰	98.96	21	鲁花12	76.45
2	花育33	90.89	12	花育23	57.20	22	青蓝2号	56.76
3	花育28	60.57	13	汕油27	61.06	23	丰花6	101.62
4	花育20	74.75	14	辽花5号	82.51	24	冀花13	72.57
5	粤油200	102.67	15	丰花5	89.70	25	花育32	65.97
6	仲恺花1	78.09	16	豫花16	79.86	26	海花1号	83.52
7	粤油101	105.80	17	冀花2号	103.36	27	汕油2	85.44
8	阜花11	78.23	18	仲恺花2	79.05	28	金花1012	53.73
9	莲花3号	78.01	19	仲恺花6	85.47	29	大青兰	95.77
10	鲁花10号	96.89	20	海花2号	81.00	30	潍花6	65.80

编号	出苗时间/d		出苗率/%		相对出苗率/%	编号	出苗时间/d		出苗率/%		相对出苗率/%
编号	CK	0.3%	CK	0.3%	相对出苗率/%	编号	CK	0.3%	CK	0.3%	相对出苗率/%
1	10	24	78.33	66.67	85.11	16	14	24	100.00	66.67	66.67
2	12	24	91.67	43.33	47.27	17	8	24	91.67	75.00	81.82
3	11	24	83.33	66.67	80.00	18	7	24	100.00	83.33	83.33
4	8	24	100.00	66.67	66.67	19	12	24	83.33	50.00	60.00
5	11	24	100.00	75.00	75.00	20	10	24	91.67	83.33	90.91
6	8	24	100.00	75.00	75.00	21	7	24	100.00	91.67	91.67
7	11	24	91.67	66.67	72.73	22	8	24	100.00	91.67	91.67
8	9	24	75.00	58.33	77.78	23	10	24	91.67	83.33	90.91
9	9	24	100.00	66.67	66.67	24	12	24	100.00	83.33	83.33
10	10	24	100.00	83.33	83.33	25	10	24	58.33	83.33	70.00
11	9	24	91.67	83.33	90.91	26	10	24	91.67	83.33	90.91
12	11	24	100.00	50.00	50.00	27	10	24	92.00	75.00	81.52
13	10	24	100.00	75.00	75.00	28	9	24	75.00	58.33	77.78
14	10	24	100.00	83.33	83.33	29	11	24	91.67	83.33	90.91
15	10	24	91.67	83.33	90.91	30	8	24	100.00	58.33	58.33

编号	出苗时间/d		出苗率/%		相对出苗率/%	编号	出苗时间/d		出苗率/%		相对出苗率/%
编号	CK	0.3%	CK	0.3%	相对出苗率/%	编号	CK	0.3%	CK	0.3%	相对出苗率/%
1	10	24	78.33	66.67	85.11	16	14	24	100.00	66.67	66.67
2	12	24	91.67	43.33	47.27	17	8	24	91.67	75.00	81.82
3	11	24	83.33	66.67	80.00	18	7	24	100.00	83.33	83.33
4	8	24	100.00	66.67	66.67	19	12	24	83.33	50.00	60.00
5	11	24	100.00	75.00	75.00	20	10	24	91.67	83.33	90.91
6	8	24	100.00	75.00	75.00	21	7	24	100.00	91.67	91.67
7	11	24	91.67	66.67	72.73	22	8	24	100.00	91.67	91.67
8	9	24	75.00	58.33	77.78	23	10	24	91.67	83.33	90.91
9	9	24	100.00	66.67	66.67	24	12	24	100.00	83.33	83.33
10	10	24	100.00	83.33	83.33	25	10	24	58.33	83.33	70.00
11	9	24	91.67	83.33	90.91	26	10	24	91.67	83.33	90.91
12	11	24	100.00	50.00	50.00	27	10	24	92.00	75.00	81.52
13	10	24	100.00	75.00	75.00	28	9	24	75.00	58.33	77.78
14	10	24	100.00	83.33	83.33	29	11	24	91.67	83.33	90.91
15	10	24	91.67	83.33	90.91	30	8	24	100.00	58.33	58.33

盐处理	平均株高/ cm	平均主根长/ cm	平均地上部干质量/ g	平均根干质量/g	平均植株干质量/g	第一对侧枝长/ cm	平均出苗速率/ (株/d)	平均出苗率/ %
CK	16.66 ± 2.49 a	5.60 ± 1.00 a	1.30 ± 0.13 a	0.23±0.00 a	1.52±0.13 a	1.18 ± 0.02 a	1.15 ± 0.03 a	0.91 ± 0.03 a
0.3%	9.43 ± 0.32 b	2.09 ± 0.20 b	1.00 ± 0.03 b	0.10 ± 0.01 b	1.09 ± 0.02 b	0.70 ± 0.01 b	0.36 ± 0.04 b	0.72 ± 0.08 b
平均耐盐指数	0.566	0.373	0.769	0.435	0.717	0.593	0.313	0.791