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- Title
Study on Cold Tolerance Identification Indices for Bitter Gourd Germplasms.
- Authors
Yu NIU; Ziji LIU; Xu HAN; Yan YANG
- Abstract
The selection of cold tolerance identification indices for biter gourd germplasms is an important bais for the breeding of cold-tolerant biter gourd varieties. In this study, with six biter gourd germplasms as experimental materials, the cold injury index of biter gourd was analyzed under low temperature treatment, the changes in physiological indices were revealed, and the man agronomic traits were measured. The results showed that the cold injury index of biter gourd was in very significant negative correlation with SOD activity, POD activity and PRO content, in significant negative correlation with CAT activity, in very significant negative coirelation with flowering node and commodity rate, but in significant positive coorelation with female flower ratio. It was found that that cold injury index, SOD activity, POD activity, CAT activity and PRO content could serve as the cold tolerance identiication indices for biter gourd at seedling stage, and flowering node and commodity rate could be used as the auxiliary indices for field cold tolerance identification.
- Subjects
GERMPLASM; PLANT germplasm; CULTIVARS; PHOTOLUMINESCENCE; FLOWER shows
- Publication
Agricultural Biotechnology (2164-4993), 2018, Vol 7, Issue 5, p76
- ISSN
2164-4993
- Publication type
Article