| Effects of seed soaking with exogenous substances on the growth, development, yield and quality of cotton exposed to cold damage at the seedling stage |
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| DOI：10.7606/j.issn.1000-7601.2024.05.15 |
| Key Words: cotton seed soaking with foreign substances cold damage growth and development yield quality |
| Author Name | Affiliation | | PAN Xipeng | College of Agriculture, Xinjiang Agricultural University, Engineering Research Center of cotton, Ministry of Education, Urumqi, Xinjiang 830052, China
Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | LI Jun Hong | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | ZHANG Yaopeng | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | LIU Xiaocheng | College of Agriculture, Hebei Agricultural University, Baoding, Hebei 071001, China | | PAN Zhanlei | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | ZHANG Zhenggui | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | ZHAI Menghua | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | LU Mingkun | College of Agriculture, Hebei Agricultural University, Baoding, Hebei 071001, China | | ZHAO Wenqi | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China | | TANG Qiuxiang | College of Agriculture, Xinjiang Agricultural University, Engineering Research Center of cotton, Ministry of Education, Urumqi, Xinjiang 830052, China | | WANG Zhanbiao | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang, Henan 455000, China
Western Agricultural Research Center of the Chinese Academy of Agricultural Sciences, Changji, Xinjiang 831100, China |
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| Abstract: |
| In this experiment, ‘Zhongmian 113’ was used as the test variety. After the cotton was soaked with trehalose, melatonin and ascorbic acid, the differences of seedling formation, main agronomic traits, biomass accumulation, yield, constituent factors and main fiber quality traits of cotton treated with the three exogenous substances were compared. The results showed that compared with CK treatment, the seedling formation rate of cotton treated with exogenous substances was significantly increased by 1.3%~6.1%. Plant height, stem diameter and branch number were significantly increased by 8.1%~9.2%, 10.1%~14.6% and 13.7%~22.2%. The biomass increased by 1.6%~20.9%, and the distribution ratio of biomass in the reservoir increased by 3.3%~16.4%. The yield of seed cotton was significantly increased by 11.7%~18.4%. The average length and breaking strength of the upper half of the cotton fiber were above 29 mm and above 29 cN·tex-1, and the Micronaire was grade B. In summary, seed soaking treatments with exogenous substances significantly improved the seedling formation rate, promoted the growth and development of cotton plants, enhanced biomass accumulation and distribution, and increased yield, with the 100 μmol·L-1 melatonin treatment having the most pronounced effect. |
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