|Table of Contents|

Screening of Salt-Tolerant and Well Symbiotic Matching Soybean Rhizobia Strains for Jinda 88(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2021年03期
Page:
385-393
Research Field:
Publishing date:

Info

Title:
Screening of Salt-Tolerant and Well Symbiotic Matching Soybean Rhizobia Strains for Jinda 88
Author(s):
WANG Min1 QIN Jie1 YANG Wan-ming2 YUE Ai-qin1 ZHAO Jin-zhong3 ZHANG Yong-po3 GAO Chun-yan3 DU Wei-jun1
(1.College of Agriculture,Shanxi Agricultural University, Taigu 030801, China; 2.Department of Biological Science and Technology, Jinzhong University, Yuci 030619, China; 3.Department of Basic Courses, Shanxi Agricultural University, Taigu 030801, China)
Keywords:
Soybean Shanxi Salt-tolerance Rhizobia strains Screening
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2021.03.0385
Abstract:
In order to screen soybean rhizobium with strong salt-tolerance for Shanxi main cultivar Jinda 88, and provide theoretical basis for solving the application of rhizobia in saline soil, 7 salt-tolerant rhizobia strains screened from 187 soybean rhizobia strains and 1 reference rhizobia strains USDA110 were used for tested strains. All strains were inoculated on Jinda 88 treated with water control and 150 mmol〖DK1〗?L-1 NaCl using randomized block design, in order to analyze the effects of rhizobium on growth traits of Jinda 88 and screen out the salt-tolerant and well-matched rhizobia strains by using correlation analysis and cluster analysis. The results showed that most of the growth traits reduced under salt stress, especially nodule traits were decreased significantly or extremely significantly. The nodule traits including fresh weight and dry weight of root nodules and root nodule number were significantly increased in USDA110 inoculated plants, which indicated that well compatibility of soybean-rhizobia in water control was Jinda 88-USDA. The plant leaf SPAD value, nodule fresh weight, dry weight of root nodules and nodule number were the best for TG1 inoculated plants under salt stress. The plant height and aboveground fresh weight were the best for TG14 inoculated plants under salt stress. Correlation analysis showed that the relative nodule number was significantly correlated with the relative SPAD value, the relative nodule fresh weight was significantly correlated with the relative nodule dry weight, and the relative shoot fresh weight was significantly correlated with the relative plant height and the relative shoot dry weight. Cluster analysis showed that strain TG1, TG53, TG79 and TG14 inoculated plants showed stronger salt resistance. These strains provided theoretical basis for the research on salt tolerance of soybean rhizobia strains and strain resources for the popularization and application in salinity soil of Shanxi Province.

References:

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Last Update: 2021-07-20