Evaluation and Heritability Analysis of the Seed Vigor of Soybean Strains Tested in the Huanghuaihai Regional Test of China

Cheng, Hao; Ye, Mengyuan; Wang, Tingting; Ma, Hao

doi:10.3390/plants12061347

Cited by 1 publication

(1 citation statement)

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“…Ten germinated seeds were randomly selected from each replicate, and their radicle and HL were measured using a vernier caliper. The seedling growth amount (radicle + HL) was multiplied by the GI to obtain the VI [38,39]. The measured results of the above indicators were compared with those of the control group.…”

Section: Experimental Designmentioning

confidence: 99%

Comparing the Salt Tolerance of Different Spring Soybean Varieties at the Germination Stage

Zhou

Tian

et al. 2023

Plants

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Salinization is a global agricultural problem with many negative effects on crops, including delaying germination, inhibiting growth, and reducing crop yield and quality. This study compared the salt tolerance of 20 soybean varieties at the germination stage to identify soybean germplasm with a high salt tolerance. Germination tests were conducted in Petri dishes containing 0, 50, 100, 150, and 200 mmol L−1 NaCl. Each Petri dish contained 20 soybean seeds, and each treatment was repeated five times. The indicators of germination potential, germination rate, hypocotyl length, and radicle length were measured. The salt tolerance of 20 soybean varieties was graded, and the theoretical identification concentration was determined by cluster analysis, the membership function method, one-way analysis of variance, and quadratic equation analysis. The relative germination rate, relative germination potential, relative root length, and relative bud length of the 20 soybean germplasms decreased when the salt concentration was >50 mmol L−1, compared with that of the Ctrl. The half-lethal salt concentration of soybean was 164.50 mmol L−1, and the coefficient of variation was 18.90%. Twenty soybean varieties were divided into three salt tolerance levels following cluster analysis: Dongnong 254, Heike 123, Heike 58, Heihe 49, and Heike 68 were salt-tolerant varieties, and Xihai 2, Suinong 94, Kenfeng 16, and Heinong 84 were salt-sensitive varieties, respectively. This study identified suitable soybean varieties for planting in areas severely affected by salt and provided materials for screening and extracting parents or genes to breed salt-tolerant varieties in areas where direct planting is impossible. It assists crop breeding at the molecular level to cope with increasingly serious salt stress.

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Section: Experimental Designmentioning

confidence: 99%