| Effects of drought stress on agronomic traits of upland cotton at flowering boll stage and its classification of drought resistance |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2024.02.01 |
| Key Words: upland cotton flower and boll period drought stress classification of drought resistance |
| Author Name | Affiliation | | ZHENG Jvyun | Cash Corps Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | WANG Zhonghui | Agricultural College, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | WANG Junduo | Cash Corps Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | GONG Zhaolong | Cash Corps Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | LIANG Yajun | Cash Corps Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | ZHANG Nala | Agricultural College, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | GUO Jiangping | Cash Corps Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | LI Xueyuan | Cash Corps Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China |
|
| Hits: 4 |
| Download times: 4 |
| Abstract: |
| Through the study the effects of drought stress on the root traits and the variety resources during the flowering and boll stage were divided into grades. 30 upland cotton varieties identified in the early stage were used to determine the agronomic traits and quality indexes of different varieties under two treatments: drought stress group and control group. Different analysis in water content, correlation analysis of agronomic traits, drought resistance coefficient, and correlation analysis of three comprehensive evaluation values (D, CDC, WDC) proved that the evaluation results of the three evaluation values were consistent. By analyzing the correlation between various traits and D and WDC values, it was clear that the four indexes of elongation, yield per plant, specific strength,and uniformity were important indicators for the identification of drought resistance of varieties. Based on the cluster analysis of D value, 30 varieties were classified into four categories. In the first category, there were 3 materials including DG219, DG168 and DG186, which belong to the category of strong drought resistance. In category II, there were 12 materials such as DG270 and DG228, which belong to the drought\|resistant category. In category III, only DG248 material was used, which was a more sensitive category. In category IV, there were 14 materials such as DG43 and DG42, which belong to the category of sensitive drought. Thus, it provides a reference basis for the identification and utilization of varieties. |
|
|
|