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- Title
Identification of Drought Tolerance in Peanut (Arachis hypogaea) Germplasm at Seedling Stage.
- Authors
Yonghui UU; Yi SHEN; Zhide CHEN
- Abstract
[Objective] This study was conducted to identify the drought tolerance of peanut (Arachis hypogaea) seedlings. [Method] The plant height, fresh weight and dry weight of 80 peanut varieties or lines were determined under the drought stress simulated using 15% PEG6000 in laboratory. Relative values of the three indices were calculated to measure the drought tolerance of the 80 peanut varieties or lines. [Result] The growth of peanut seedlings was significantly inhibited after 10 d of drought treatment. Cluster analysis revealed that at Euclidean distance D=15, the 80 peanut varieties or lines were divided into four categories A, B, C and D. Among them, category B had better drought tolerance while category C was sensitive to drought. In all the four categories, the approved peanut varieties or lines showed better drought tolerance than the unapproved ones. [Conclusion] The drought tolerant and the drought sensitive peanut varieties or lines screened in this study can be used for further basic research and germplasm improvement.
- Subjects
PEANUT research; SEEDLINGS; DROUGHT tolerance; CLUSTER analysis (Statistics); BOTANY
- Publication
Agricultural Science & Technology, 2015, Vol 16, Issue 9, p1873
- ISSN
1009-4229
- Publication type
Article