331份花生种质苗期耐盐性综合评价和强耐盐种质鉴选

doi:10.3724/SP.J.1006.2026.55044

Abstract

Abstract:

Soil salinization is a major constraint limiting the expansion and yield of peanut cultivation. Screening salt-tolerant peanut germplasm and identifying related traits provide a foundation for breeding salt-tolerant varieties and investigating the mechanisms underlying salt tolerance. In this study, the salt tolerance of 331 peanut accessions was evaluated at the seedling stage using a hydroponic system. Eight parameters were measured: SPAD value, plant height, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, fresh weight root/shoot ratio, and dry weight root/shoot ratio. A comprehensive evaluation of salt tolerance was conducted using principal component analysis (PCA), membership function analysis, and cluster analysis. Under different salt concentrations, six parameters—plant height, shoot fresh weight, root fresh weight, shoot dry weight, fresh weight root/shoot ratio, and dry weight root/shoot ratio—showed significant differences among accessions. Salt stress inhibited peanut growth and significantly reduced four of these parameters compared with the control. Correlation analysis revealed significant relationships among the salt tolerance coefficients of all eight parameters, with the strongest correlation observed between root fresh weight and root dry weight (r = 0.83). PCA reduced the eight parameters to three principal components, accounting for a cumulative variance of 76.22%. Based on D-values (comprehensive evaluation scores), cluster analysis grouped the 331 accessions into five categories: Group I (highly salt-tolerant, 11 accessions), Group II (salt-tolerant, 33 accessions), Group III (intermediate, 104 accessions), Group IV (salt-sensitive, 42 accessions), and Group V (highly salt-sensitive, 141 accessions). A stepwise regression analysis yielded a predictive equation for evaluating salt tolerance in peanut seedlings: Y = 0.032 + 0.163X₄ + 0.137X₃ + 0.073X₁- 0.158 X₂ + 0.111X₅ + 0.080X₆. The D-value proved effective for assessing salt tolerance at the seedling stage, and 11 salt-tolerant germplasms, including Huashi 2, AM-Ceorganic, and Zhonghua 6, were identified. Plant height, root dry weight, and shoot dry weight were identified as key indicators for evaluating peanut salt tolerance at the seedling stage.

Key words: peanut, seedling stage, assessment of salt tolerance, principal component analysis, subordinate function analysis, germplasm evaluation

Wang Fei-Fei, Zhang Sheng-Zhong, Yang Gui-Hua, Miao Hua-Rong, Hu Xiao-Hui, Zhang Ze-Lin, Liu Sha-Sha, Qiao Li-Xian, Shan Shi-Hua, Chen Jing. Comprehensive evaluation of salt tolerance and identification of elite salt-tolerant germplasm in 331 peanut accessions at seedling stage[J].Acta Agronomica Sinica, 2026, 52(1): 279-294.

Figures/Tables 11

Table 1

Names of the 331 peanut germplasms tested"

序号 Number	种质 Germplasm	序号 Number	种质 Germplasm	序号 Number	种质 Germplasm
1	鲁花8号Luhua 8	113	AM-C1501-HO/L	225	正花6088 Zhenghua 6088
2	鲁花10号Luhua 10	114	AM-C1801_H_917	226	ZZL-ZH6
3	鲁花11号Luhua 11	115	AM-C1801_H_954	227	远杂9847 Yuanza 9847
4	鲁花12号Luhua 12	116	AM-C1801_H_980	228	徐花18号 Xuhua 18
5	花育16号Huayu 16	117	AM-C1801_H_1036	229	ZZL-XH1
6	花育20号Huayu 20	118	AM-C1801_H_1075	230	ZZL-W10
7	花育23号Huayu 23	119	AM-C1801_H_1202	231	鲁花6号Luhua 6
8	花育24号Huayu 24	120	AM-C1801_H_1250	232	ZZL-KT1
9	花育25号Huayu 25	121	AM-C1801_H_1272	233	华实2号 Huashi 2
10	花育26号Huayu 26	122	AM-C1801_H_1314	234	ZZL-GH88
11	花育27号Huayu 27	123	AM-C1801_H_1327	235	ZZL-T1 Tian 1
12	花育28号Huayu 28	124	AM-C1801_H_1331	236	ZZL-GY1
13	花育30号Huayu 30	125	AM-C1801_H_1333	237	ZZL-NZ
14	花育31号Huayu 31	126	AM-C1801_H_1374	238	ZZL-YNXH
15	花育32号Huayu 32	127	AM-C1801_H_1375	239	ZZL-YNSLZ
16	花育34号Huayu 34	128	AM-Flordia 07	240	ZZL-SCH
17	花育35号Huayu 35	129	AM-Baily high OL	241	ZZL-RHH1
18	花育39号Huayu 39	130	AM-MarcI	242	ZZL-QFH
19	花育50号Huayu 50	131	AM-C46	243	ZZL-TG2-2
20	丰花1号Fenghua 1	132	AM-IAC322	244	ZZL-YD1
21	丰花2号Fenghua 2	133	AM-IAC886	245	ZZL-YSLPF
22	丰花3号Fenghua 3	134	AM-IAC389	246	ZZL-WKLPFU
23	丰花4号Fenghua 4	135	AM-Georganic	247	ZZL-WKLJAVA
24	丰花5号Fenghua 5	136	AM-Tifguard	248	ZZL-WKL XBYX
25	丰花6号Fenghua 6	137	AM-SLR	249	ZZL-XYL7
26	山花7号Shanhua 7	138	AM-SS	250	ZZL-SLLK1
27	山花8号Shanhua 8	139	AM-Nematoder(s)	251	ZZL-SLLK2
28	山花10号Shanhua 10	140	AM-Georgia-14N(HO/L)	252	ZZL-HL
29	山花12号Shanhua 12	141	AM-SCD	253	ZZL-GSDLJ
30	山花16号Shanhua 16	142	AM-C1501-48(S)	254	ZZL-F2-2
31	山花17号Shanhua 17	143	AM-13-3424	255	ZZL-FG2-3
32	青花5号Qinghua 5	144	AM-13-3476	256	ZZL-FG02
33	青花6号Qinghua 6	145	AM-N080820IJcT	257	ZZL-FDL
34	青花7号Qinghua 7	146	AM-NC3033	258	ZZL-AEJLYA
35	潍花7号Weihua 7	147	AM-13-3532	259	ZZL-AEJLYC
36	潍花8号Weihua 8	148	AM-C1801-H-1042	260	ZZL-N2-3
37	潍花9号Weihua 9	149	AM-C1801-H-1012	261	ZZL-H103
38	潍花10号Weihua 10	150	AM-C1801-H-924	262	ZZL-H108
39	临花5号Linhua 5	151	AM-C1801-H-1028	263	ZZL-H1602
40	临花6号Linhua 6	152	AM-C1801-H-952	264	ZZL-9102-16-1
41	科花1号Kehua 1	153	AM-SPT06-06	265	ZZL-9102-54-2
42	日花1号Rihua 1	154	潍花6号Weihua 6	266	ZZL-20L-24
43	花育51号Huayu 51	155	潍花14号Weihua 14	267	ZZL-225
44	花育52号Huayu 52	156	潍花20号Weihua 20	268	ZZL-1202
45	花育62 Huayu 62	157	潍花21号Weihua 21	269	ZZL-1210
46	花育951 Huayu 951	158	潍花22号Weihua 22	270	ZZL-9102
47	花育953 Huayu 953	159	潍花30号Weihua 30	271	豫航花1号 Yuhanghua 1
48	花育954 Huayu 954	160	冀花4号Jihua 4	272	汾花8号Fenhua 8
49	花育955 Huayu 955	161	冀油8号Jiyou 8	273	花育33号Huayu 33
50	花育956 Huayu 956	162	中花5号Zhonghua 5	274	花育45号Huayu 45
51	花育957 Huayu 957	163	中花8号Zhonghua 8	275	花育9113 Huayu 9113
52	花育958 Huayu 958	164	天府18号Tianfu 18	276	花育9118 Huayu 9118
53	花育9512 Huayu 9512	165	天府3号Tianfu 3	277	花育9510 Huayu 9510
54	花育9513 Huayu 9513	166	湘花2008 Xianghua 2008	278	花育9610 Huayu 9610
55	花育9514 Huayu 9514	167	湘花555 Xianghua 555	279	济花1209 Jihua 1209
56	花育9515 Huayu 9515	168	粤油551 Yueyou 551	280	冀花11号Jihua 11
57	花育9516 Huayu 9516	169	粤油79 Yueyou 79	281	冀花13号Jihua 13
58	花育9517 Huayu 9517	170	粤油92 Yueyou 92	282	冀花16号Jihua 16
59	花育9518 Huayu 9518	171	台南13号Tainan 13	283	冀花18号Jihua 18
60	花育9519 Huayu 9519	172	泰花3号Taihua 3	284	冀花19号Jihua 19
61	花育9520 Huayu 9520	173	唐油4号Tangyou 4	285	冀花21号Jihua 21
62	花育9522 Huayu 9522	174	湛油62 Zhanyou 62	286	冀花572 Jihua 572
63	花育651 Huayu 651	175	吉花13号Jihua 13	287	冀花915 Jihua 915
64	花育652 Huayu 652	176	8130	288	冀花97 Jihua 97
65	花育656 Huayu 656	177	白沙1016 Baisha 1016	289	冀农花3号Jinonghua 3
66	花育657 Huayu 657	178	芙蓉花生Furong huasheng	290	濮花28号Puhua 28
67	花育658 Huayu 658	179	南充扯兜子Nanchong chedouzi	291	濮花66号Puhua 66
68	花育659 Huayu 659	180	宁海大京生Ninghai dajingsheng	292	濮花76号Puhua 76
69	5-139	181	日本香香Japan xiangxiang	293	濮花86号Puhua 86
70	H12	182	佘山凤凰窝Sheshan fenghuangwo	294	琼花1号Qionghua 1
71	H16	183	铁打坚Tiedajian	295	山花9号Shanhua 9
72	H18	184	印度多粒India duoli	296	山花11号Shanhua 11
73	H19	185	法库四粒红Faku silihong	297	山花18号Shanhua 18
74	F18	186	栖霞四粒红Qixia silihong	298	泰花11号Taihua 11
75	四粒红Silihong	187	济花9号 Jihua 9	299	潍花15号Weihua 15
76	东北王 Dongbeiwang	188	ZZL-GH17	300	潍花25号Weihua 25
77	AT_VC_2	189	桂花22 Guihua 22	301	潍花28号Weihua 28
78	埃及果Aijiguo	190	桂花36 Guihua 36	302	易花0910 Yihua 0910
79	GXNJP	191	ZZL-GH61	303	宇花4号Yuhua 4
80	GXBDLLR	192	桂花63 Guihua 63	304	宇花8号Yuhua 8
81	桂花红166 Guihuahong 166	193	桂花1026 Guihua 1026	305	宇花31 Yuhua 31
82	THS	194	中花6号 Zhonghua 6	306	宇花32 Yuhua 32
83	THS-JL	195	中花16 Zhonghua 16	307	宇花33 Yuhua 33
84	济花501 Jihua 501	196	中花24 Zhonghua 24	308	宇花625 Yuhua 625
85	开农1715 Kainong 1715	197	豫花23 Yuhua 23	309	宇花671 Yuhua 671
86	开农69 Kainong 69	198	豫花47号 Yuhua 47	310	宇花208 Yuhua 208
87	冀花16 Jihua 16	199	豫花93号 Yuhua 93	311	中花12 Zhonghua 12
88	花育917 Huayu 917	200	ZZL-YH168	312	冀油4号 Jiyou 4
89	FDLYL	201	豫花133号 Yuhua 133	313	白沙Baisha
90	扒拉克Balake	202	豫花9326 Yuhua 9326	314	金坠Jinzhui
91	宇花1号Yuhua 1	203	豫航花1号 Yuhanghua 1	315	云南四粒紫Yunnan silizi
92	AM-C1801_H_924	204	ZZL-YH	316	GDELH
93	AM-C1801_H_952	205	益花1号 Yihua 1	317	GDSC
94	AM-C1801_H_1012	206	ZZL-YH1902	318	吉花19 Jihua 19
95	AM-C1801_H_1028	207	蜀花4号 Shuhua 4	319	NMP
96	AM-Tifrunner	208	蜀花3号 Shuhua 3	320	NMR
97	AM-SSD6-2	209	蜀花2 Shuhua 2	321	恩施两粒红Enshi lianglihong
98	AM-N6	210	ZZL-QH6	322	狮头企Shitouqi
99	AM-N8	211	泉花7号Quanhua 7	323	巨野小花生Juye xiaohuasheng
100	AM-N9	212	ZZL-QH8	324	汶上爬蔓花生 Wenshangpaman huasheng
101	AM-N4	213	ZZL- QH10	325	伏花生Fuhuasheng
102	AM-N3	214	ZZL-QH327	326	霸王鞭Bawangbian
103	AM-C76	215	泉花557 Quanhua 557	327	威海大粒墩Weihai dalidun
104	AM-C76-16	216	黔花8 Qianhua 8	328	HNHY25
105	AM-NM Valencia A	217	黔花9 Qianhua 9	329	花育60 Huayu 60
106	AM-C1501-46	218	开农61 Kainong 61	330	花育910 Huayu 910
107	AM-Florunner	219	开农64 Kainong 64	331	花育9125 Huayu 9125
108	AM-N7	220	ZZL-KN301
109	AM-G1	221	冀农花7 Jinonghua 7
110	AM-C5	222	冀农花12 Jinonghua 12
111	AM-C1801_H_1042	223	冀农花9 Jinonghua 9
112	AM-F07	224	仲恺花12 Zhongkaihua 12

Table 1

Table 2

Fig. 1

Table 3

Fig. 2

Fig. 3

Table 4

Table S1

Values of subordinative function and D-values of 331 peanut resources tested"

序号 Number	隶属函数值 Subordinative function value			D值 D-value	序号 Number	隶属函数值 Subordinative function value			D值 D-value
序号 Number	μ1	μ2	μ3	D值 D-value	序号 Number	μ1	μ2	μ3	D值 D-value
1	0.54	0.42	0.50	0.49	167	0.33	0.32	0.59	0.38
2	0.24	0.37	0.66	0.37	168	0.34	0.34	0.63	0.39
3	0.31	0.42	0.57	0.40	169	0.30	0.42	0.52	0.38
4	0.69	0.28	0.73	0.55	170	0.24	0.22	0.53	0.29
5	0.29	0.44	0.62	0.41	171	0.33	0.32	0.61	0.38
6	0.32	0.34	0.71	0.40	172	0.39	0.34	0.37	0.37
7	0.48	0.19	0.41	0.36	173	0.34	0.31	0.55	0.37
8	0.36	0.27	0.61	0.37	174	0.39	0.12	0.64	0.34
9	0.57	0.18	0.40	0.40	175	0.50	0.34	0.61	0.46
10	0.82	0.10	0.53	0.50	176	0.24	0.53	0.34	0.36
11	0.54	0.18	0.41	0.39	177	0.62	0.48	0.71	0.58
12	0.44	0.33	0.62	0.43	178	0.55	0.22	0.50	0.42
13	0.34	0.40	0.32	0.36	179	0.53	0.03	0.56	0.35
14	0.29	0.22	0.79	0.35	180	0.23	0.25	0.31	0.25
15	0.51	0.18	0.74	0.43	181	0.34	0.29	0.50	0.35
16	0.50	0.29	0.58	0.44	182	0.39	0.38	0.52	0.41
17	0.29	0.30	0.60	0.35	183	0.45	0.14	0.50	0.35
18	0.49	0.18	0.55	0.39	184	0.48	0.08	0.50	0.34
19	0.37	0.48	0.55	0.44	185	0.46	0.26	0.37	0.37
20	0.35	0.27	0.45	0.34	186	0.45	0.48	0.31	0.43
21	0.50	0.09	0.80	0.41	187	0.96	0.25	0.66	0.65
22	0.38	0.32	0.47	0.37	188	0.55	0.25	0.79	0.48
23	0.30	0.33	0.65	0.37	189	0.70	0.62	0.37	0.61
24	0.34	0.31	0.64	0.38	190	0.38	0.34	0.74	0.43
25	0.54	0.26	0.67	0.46	191	0.38	0.25	0.87	0.42
26	0.29	0.45	0.29	0.35	192	0.19	0.12	0.58	0.24
27	0.47	0.32	0.56	0.43	193	0.40	0.38	0.44	0.40
28	0.27	0.33	0.40	0.31	194	0.69	0.68	0.47	0.64
29	0.59	0.33	0.42	0.46	195	0.51	0.45	0.29	0.45
30	0.54	0.36	0.31	0.43	196	0.36	0.35	0.53	0.39
31	0.67	0.30	0.52	0.51	197	0.56	0.40	0.47	0.49
32	0.29	0.54	0.16	0.36	198	0.22	0.07	0.48	0.21
33	0.23	0.22	0.38	0.25	199	0.22	0.35	0.62	0.34
34	0.35	0.22	0.30	0.29	200	0.68	0.38	0.54	0.55
35	0.53	0.32	0.39	0.43	201	0.47	0.57	0.40	0.50
36	0.38	0.50	0.53	0.45	202	0.32	0.36	0.55	0.38
37	0.53	0.48	0.54	0.51	203	0.63	0.34	0.61	0.52
38	0.32	0.36	0.46	0.36	204	1.00	0.25	0.83	0.70
39	0.42	0.36	0.58	0.43	205	0.35	0.43	0.48	0.40
40	0.38	0.38	0.37	0.38	206	0.46	0.45	0.45	0.45
41	0.33	0.38	0.44	0.37	207	0.25	0.41	0.65	0.38
42	0.31	0.43	0.41	0.37	208	0.23	0.16	0.70	0.29
43	0.59	0.32	0.42	0.46	209	0.31	0.33	0.72	0.39
44	0.39	0.27	0.41	0.35	210	0.55	0.30	0.72	0.49
45	0.48	0.40	0.52	0.46	211	0.28	0.52	0.41	0.39
46	0.37	0.50	0.57	0.45	212	0.50	0.29	0.50	0.42
47	0.23	0.45	0.51	0.36	213	0.35	0.39	0.38	0.37
48	0.65	0.24	0.59	0.49	214	0.45	0.42	0.34	0.42
49	0.69	0.39	0.31	0.51	215	0.31	0.48	0.47	0.40
50	0.87	0.53	0.61	0.70	216	0.36	0.43	0.34	0.39
51	0.42	0.66	0.09	0.44	217	0.19	0.46	0.48	0.34
52	0.50	0.47	0.39	0.47	218	0.39	0.38	0.52	0.41
53	0.86	0.20	0.60	0.57	219	0.65	0.77	0.39	0.65
54	0.26	0.51	0.09	0.32	220	0.08	0.24	0.50	0.22
55	0.42	0.46	0.43	0.43	221	0.09	0.38	0.56	0.28
56	0.55	0.11	0.54	0.38	222	0.45	0.44	0.58	0.47
57	0.47	0.38	0.25	0.40	223	0.40	0.53	0.61	0.48
58	0.33	0.44	0.43	0.39	224	0.07	0.28	0.63	0.25
59	0.26	0.57	0.38	0.40	225	0.42	0.54	0.53	0.48
60	0.31	0.33	0.48	0.35	226	0.23	0.20	0.52	0.27
61	0.55	0.15	0.58	0.41	227	0.32	0.57	0.36	0.42
62	0.25	0.40	0.41	0.33	228	0.34	0.42	0.51	0.40
63	0.62	0.09	0.56	0.42	229	0.36	0.69	0.00	0.42
64	0.59	0.15	0.56	0.42	230	0.50	0.50	0.36	0.47
65	0.39	0.38	0.52	0.41	231	0.26	0.10	0.55	0.25
66	0.33	0.29	0.45	0.34	232	0.31	0.47	0.70	0.44
67	0.33	0.38	0.67	0.41	233	0.77	0.73	0.59	0.72
68	0.43	0.39	0.34	0.40	234	0.53	0.44	0.54	0.50
69	0.50	0.31	0.55	0.44	235	0.15	0.52	0.60	0.37
70	0.39	0.38	0.52	0.41	236	0.23	0.54	0.74	0.43
71	0.28	0.26	0.86	0.38	237	0.55	0.56	0.67	0.58
72	0.40	0.44	0.29	0.39	238	0.23	0.27	0.46	0.29
73	0.41	0.37	0.58	0.42	239	0.34	0.28	0.50	0.35
74	0.26	0.32	0.64	0.35	240	0.32	0.74	0.60	0.52
75	0.54	0.06	0.55	0.37	241	0.20	0.23	0.50	0.26
76	0.39	0.38	0.52	0.41	242	0.15	0.43	0.71	0.35
77	0.39	0.38	0.52	0.41	243	0.36	0.21	0.53	0.34
78	0.35	0.38	0.62	0.41	244	0.38	0.34	0.57	0.40
79	0.48	0.12	0.69	0.39	245	0.12	0.54	0.60	0.36
80	0.43	0.38	0.40	0.41	246	0.37	0.49	0.80	0.49
81	0.30	0.43	0.42	0.37	247	0.24	0.00	0.62	0.22
82	0.34	0.33	0.67	0.39	248	0.38	0.34	0.64	0.41
83	0.33	0.22	0.34	0.29	249	0.39	0.42	0.62	0.45
84	0.39	0.38	0.52	0.41	250	0.24	0.22	0.57	0.29
85	0.45	0.38	0.56	0.44	251	0.33	0.16	0.69	0.33
86	0.41	0.41	0.52	0.43	252	0.29	0.14	0.79	0.32
87	0.32	0.20	0.49	0.31	253	0.65	0.41	0.64	0.56
88	0.61	0.43	0.34	0.49	254	0.30	0.11	0.99	0.35
89	0.59	0.19	0.25	0.38	255	0.31	0.00	0.74	0.27
90	0.41	0.37	0.39	0.39	256	0.44	0.17	0.83	0.42
91	0.40	0.30	0.49	0.38	257	0.34	0.09	0.85	0.34
92	0.45	0.37	0.48	0.42	258	0.23	0.21	0.53	0.28
93	0.50	0.47	0.24	0.44	259	0.44	0.49	0.62	0.49
94	0.57	0.31	0.30	0.42	260	0.40	0.48	0.34	0.42
95	0.48	0.47	0.22	0.43	261	0.24	0.45	0.28	0.33
96	0.54	0.31	0.46	0.44	262	0.23	0.40	0.44	0.33
97	0.45	0.41	0.32	0.41	263	0.45	0.44	0.42	0.44
98	0.18	0.70	0.52	0.43	264	0.34	0.49	0.36	0.39
99	0.44	0.64	0.51	0.52	265	0.59	0.65	0.44	0.59
100	0.55	0.53	0.40	0.51	266	0.31	0.31	0.49	0.35
101	0.55	0.67	0.85	0.65	267	0.21	0.25	0.68	0.31
102	0.26	0.40	0.68	0.39	268	0.58	0.75	0.44	0.62
103	0.43	0.36	0.70	0.45	269	0.25	0.20	0.54	0.28
104	0.31	0.59	0.86	0.51	270	0.75	0.31	0.42	0.53
105	0.51	1.00	1.00	0.78	271	0.26	0.06	0.22	0.18
106	0.33	0.42	0.50	0.39	272	0.31	0.24	0.31	0.28
107	0.25	0.58	0.88	0.48	273	0.67	0.44	0.56	0.56
108	0.27	0.63	0.51	0.44	274	0.36	0.44	0.31	0.38
109	0.44	0.90	0.87	0.69	275	0.29	0.36	0.44	0.34
110	0.26	0.27	0.75	0.35	276	0.45	0.39	0.49	0.43
111	0.37	0.55	0.58	0.47	277	0.34	0.53	0.37	0.41
112	0.33	0.44	0.75	0.45	278	0.36	0.62	0.62	0.50
113	0.38	0.55	0.74	0.50	279	0.44	0.70	0.43	0.53
114	0.32	0.52	0.66	0.45	280	0.41	0.16	0.38	0.31
115	0.32	0.49	0.58	0.43	281	0.40	0.22	0.50	0.35
116	0.33	0.60	0.07	0.38	282	0.47	0.52	0.51	0.50
117	0.28	0.59	0.88	0.50	283	0.36	0.18	0.46	0.31
118	0.36	0.69	0.62	0.53	284	0.24	0.37	0.48	0.33
119	0.18	0.60	0.45	0.38	285	0.30	0.33	0.47	0.34
120	0.41	0.65	0.52	0.52	286	0.28	0.12	0.43	0.25
121	0.39	0.38	0.52	0.41	287	0.46	0.23	0.55	0.39
122	0.39	0.38	0.52	0.41	288	0.33	0.37	0.43	0.36
123	0.38	0.71	0.69	0.56	289	0.55	0.58	0.50	0.55
124	0.33	0.68	0.78	0.54	290	0.60	0.42	0.52	0.52
125	0.36	0.59	0.76	0.51	291	0.36	0.18	0.52	0.33
126	0.35	0.59	0.75	0.51	292	0.39	0.36	0.60	0.42
127	0.37	0.53	0.91	0.52	293	0.33	0.15	0.52	0.30
128	0.45	0.62	0.91	0.60	294	0.40	0.45	0.64	0.46
129	0.43	0.90	0.71	0.65	295	0.37	0.37	0.47	0.39
130	0.28	0.56	0.67	0.45	296	0.40	0.40	0.48	0.41
131	0.39	0.68	0.73	0.56	297	0.41	0.11	0.41	0.30
132	0.34	0.59	0.65	0.49	298	0.43	0.30	0.41	0.38
133	0.30	0.62	0.70	0.49	299	0.37	0.27	0.44	0.34
134	0.31	0.37	0.52	0.37	300	0.29	0.26	0.39	0.30
135	0.71	0.57	0.63	0.64	301	0.69	0.59	0.77	0.67
136	0.18	0.28	0.52	0.28	302	0.33	0.07	0.45	0.26
137	0.71	0.12	0.65	—	303	0.26	0.25	0.51	0.30
138	0.43	0.12	0.72	—	304	0.26	0.39	0.37	0.33
139	0.37	0.24	0.46	—	305	0.52	0.55	0.25	0.48
140	0.49	0.51	0.28	—	306	0.40	0.37	0.34	0.38
141	0.39	0.46	0.53	—	307	0.55	0.36	0.48	0.47
142	0.49	0.36	0.55	—	308	0.58	0.21	0.60	0.45
143	0.27	0.35	0.43	—	309	0.40	0.44	0.19	0.38
144	0.24	0.30	0.41	—	310	0.33	0.42	0.35	0.37
145	0.30	0.47	0.62	—	311	0.73	0.47	0.39	0.57
146	0.05	0.58	0.68	—	312	0.30	0.39	0.28	0.33
147	0.23	0.48	0.64	—	313	0.33	0.44	0.31	0.37
148	0.36	0.25	0.42	—	314	0.36	0.37	0.54	0.40
149	0.42	0.45	0.40	—	315	0.49	0.35	0.56	0.45
150	0.36	0.54	0.57	—	316	0.27	0.42	0.54	0.37
151	0.42	0.47	0.63	—	317	0.41	0.38	0.56	0.43
152	0.50	0.29	0.58	—	318	0.26	0.32	0.44	0.31
153	0.48	0.51	0.12	—	319	0.60	0.38	0.50	0.50
154	0.37	0.50	0.94	—	320	0.37	0.11	0.56	0.31
155	0.39	0.38	0.52	—	321	0.36	0.34	0.49	0.38
156	0.36	0.29	0.16	—	322	0.40	0.21	0.62	0.37
157	0.29	0.57	0.68	—	323	0.39	0.38	0.52	0.41
158	0.56	0.25	0.62	—	324	0.35	0.19	0.71	0.35
159	0.67	0.42	0.40	—	325	0.25	0.37	0.36	0.31
160	0.29	0.43	0.23	—	326	0.29	0.56	0.43	0.41
161	0.44	0.53	0.51	0.48	327	0.59	0.43	0.50	0.52
162	0.36	0.53	0.30	0.41	328	0.29	0.37	0.59	0.38
163	0.28	0.38	0.29	0.32	329	0.04	0.47	0.76	0.33
164	0.39	0.38	0.52	0.41	330	0.21	0.48	0.70	0.40
165	0.29	0.32	0.64	0.36	331	0.29	0.45	0.20	0.33
166	0.29	0.47	0.47	0.39

Table S1

Table 5

Fig. 4

Table 6

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性状 Trait	测定方法 Measurement method
叶绿素含量SPAD	用SPAD-502 Plus测定倒三叶小叶片的SPAD值 Measure the SPAD value of the inverted three-leaf small leaves using the SPAD-502 Plus
苗高PH (cm)	用直尺测量主茎顶端到子叶节的距离Measure the distance from the tip of the main stem to the cotyledon node
地上鲜重SFW (g)	用分析天平称量根部以上整个幼苗的重量Weigh the entire seedling above the root using an analytical balance
地下鲜重RFW (g)	用分析天平称量整个根系的重量Weigh the entire root using an analytical balance
地上干重SDW (g)	测完鲜重的幼苗于烘箱烘干, 用分析天平称量干重 After measuring the fresh weight of the seedlings, dry them in an oven and weigh the dry weight using an analytical balance
地下干重RDW (g)	测完鲜重的根系于烘箱烘干, 用分析天平称量干重 After measuring the fresh weight of the roots, dry them in an oven and weigh the dry weight using an analytical balance
鲜重根冠比RSFW	根鲜重与地上鲜重的比值 Ratio of root fresh weight to shoot fresh weight
干重根冠比RSDW	根干重与地上干重的比值 Ratio of root dry weight to shoot dry weight

指标 Trait	最大值Max.	最小值 Min.	极差 Range	均值 Average	标准偏差 SD	偏度 Skewness	峰度 Kurtosis	变异系数 CV (%)
相对叶绿素含量RSPAD	2.18	0.58	1.60	1.05	0.25	1.13	2.24	23.81
相对苗高RPH	0.87	0.24	0.63	0.51	0.10	0.21	0.74	19.60
相对地上鲜重RSFW	1.24	0.25	0.99	0.65	0.16	0.67	1.57	24.62
相对地下鲜重RRFW	1.62	0.25	1.37	0.74	0.22	0.88	1.49	29.73
相对地上干重RSDW	3.04	0.15	2.89	0.80	0.29	2.19	11.84	36.25
相对地下干重RRDW	2.90	0.22	2.68	1.04	0.35	1.28	4.07	33.65
相对鲜重根冠比RRSFW	2.20	0.42	1.78	1.16	0.26	0.59	0.86	22.41
相对干重根冠比RRSDW	4.49	0.35	4.14	1.42	0.58	1.39	3.54	40.85

耐盐指标 Salt tolerance trait	主成分Principal component
耐盐指标 Salt tolerance trait	第1主成分PC1	第2主成分PC2	第3主成分PC3
相对叶绿素含量RSPAD	-0.122	0.463	0.312
相对苗高RPH	0.228	0.122	-0.860
相对地上鲜重RSFW	0.542	0.708	-0.215
相对地下鲜重RRFW	0.927	0.213	0.048
相对地上干重RSDW	0.039	0.831	0.298
相对地下干重RRDW	0.916	0.149	0.157
相对鲜重根冠比RRSFW	0.538	-0.593	0.317
相对干重根冠比RRSDW	0.648	-0.621	-0.031
特征值Eigen value	2.77	2.23	1.10
贡献率Contribution ratio (%)	34.64	27.82	13.76
累计贡献率Cumulative contribution ratio (%)	34.64	62.46	76.22

多元回归方程 Multiple regression equation	相关系数 r	判定系数 R²	F值 F-value	P值 P-value
Y = 0.032+0.163X₄+0.137X₃+0.073X₁-0.158 X₂+0.111X₅+0.080X₆	1.000	0.999	70,971.946	≤ 0.001
Y = 0.044+0.144X₄+0.103X₃+0.136X₅+0.082X₆	0.954	0.911	882.242	≤ 0.001
Y = 0.102+0.157X₅+0.176X₆	0.914	0.835	878.076	≤ 0.001
Y = 0.084+0.082X₄+0.238X₃+0.108X₆	0.878	0.771	390.103	≤ 0.001
Y = 0.095+0.229X₄+0.226X₃	0.844	0.712	431.479	≤ 0.001
Y = 0.165+0.333X₄	0.791	0.625	583.891	≤ 0.001

序号 No.	种质 Germplasm	相对叶绿素含量 RSPAD	相对苗高 RPH	相对地上鲜重 RSFW	相对地下鲜重 RRFW	相对地上干重 RSDW	相对地下干重 RRDW	相对鲜重根冠比 RRSFW	相对干重根冠比 RRSDW
135	AM-Georganic	0.84	0.49	0.91	1.21	1.29	2.00	1.33	1.55
194	中花6 Zhonghua 6	0.95	0.56	1.09	1.25	1.25	1.73	1.15	1.38
219	开农64 Kainong 64	1.05	0.52	1.24	1.38	0.89	1.61	0.82	0.80
223	冀农9 Jinong 9	0.98	0.39	0.84	0.79	0.86	1.24	0.92	0.91
227	远杂9847 Yuanza 9847	0.76	0.47	0.94	0.70	0.82	0.90	0.66	0.73
233	华实2 Huashi 2	1.52	0.56	1.19	1.45	1.15	1.74	1.37	1.57
253	ZZL-GSDLJ	0.77	0.46	0.63	1.41	0.82	1.89	1.27	1.21
265	ZZL-9102-54-2	1.15	0.57	0.97	1.10	1.00	1.73	0.94	1.17
268	ZZL-1202	1.24	0.57	1.06	1.16	1.14	1.56	0.88	1.01
282	冀花16号Jihua 16	0.89	0.52	0.71	0.84	1.10	1.58	0.98	1.13
301	潍花28号Weihua 28	0.89	0.41	0.83	1.42	1.26	1.97	1.31	1.06

Comprehensive evaluation of salt tolerance and identification of elite salt-tolerant germplasm in 331 peanut accessions at seedling stage

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