Screening and Evaluation of Low Temperature Tolerant 
Cotton Germplasm in Southern Xinjiang

Conghao Zhang; Hongni He; Ye Yao; Xiaodie Tang; Hemeng Wang*

doi:10.70711/frim.v3i3.6171

Screening and Evaluation of Low Temperature Tolerant Cotton Germplasm in Southern Xinjiang

Conghao Zhang, Hongni He, Ye Yao, Xiaodie Tang, Hemeng Wang*

Abstract

Cotton is an important cash crop in Xinjiang, if the cotton seedling growth in early spring reverse cold weather, it is easy to
cause low temperature frostbite, cotton seedlings appear rotten buds and dead seedlings and other phenomena, resulting in cotton production. In this study, 7 cotton germplasm were treated with low temperature stress at 4? for 48 h at the seedling stage, and the physiological
indexes such as catalase activity, peroxidase activity, chlorophyll content and other phenotypic indexes were determined. The cold tolerance of 7 cotton germplasm was evaluated comprehensively through the analysis of many indexes. Further selection of cotton varieties
with strong cold resistance will provide a theoretical basis for selecting and breeding cotton varieties with low temperature resistance suitable for growing in southern Xinjiang.

Keywords

Xinjiang; Cotton; Germplasm evaluation; Cold resistance

Full Text:

PDF

Included Database

References

[1] Andreas T, Christophe C, Ait EB. Physiological and molecular changes in plants grown at low temperatures[J]. Planta, 2012, 235(6): 1091-105.

[2] Feng Changhu. Summary of leaf area determination methods in cotton [J]. Cotton in Jiangxi, 1990, (Z2): 13-16.

[3] Li Xingxing, Yan Qingqing, Wang Lihong, et al. Analysis of growth characteristics of different cotton varieties and identification of cold

tolerance [J]. Journal of Nanjing Agricultural University, 2017, 40 (04): 584-591.

[4] Zhang Longyan, Cheng Gongmin, Wei Hengling, et al. Response of upland cotton seed germination stage to cold stress and identification of cold tolerance [J]. Agricultural Science of China, 2021, 54 (01): 19-33.

[5] Li Rui, Li Shengquan, Fan Yuexian. Effect of cold stress on SOD and CAT activities in cotton seedlings [J]. Cotton of China, 2008, (02): 18-19.

[6] Li Chen. Regulation of key enzyme genes for carotenoid synthesis and stress resistance effects in plants [D]. Tianjin: Tianjin University, 2020.

[7] Dou Peitong, Liu Fangyan, Gao Chengjie, et al. Photosynthetic and anti-resistant properties of different plants in the Red River Dry and

hot Valley [J]. Journal of Northeast Forestry University, 2021, 49 (07): 56-60 + 65.

DOI: http://dx.doi.org/10.70711/frim.v3i3.6171

Refbacks

There are currently no refbacks.