Correlation analysis between biochemical quality of seed germinability under under abiotic stress in peanut.

Autor: LIU Wen-qiang, WANG Zhi-wei, JIANG Chun-jiao, LIANG Feng-jian, SUN Hao-jie, QU Chun-juan, WANG Huan, WANG Chuang-tang
Předmět:
Zdroj: Chinese Journal of Oil Crop Sciences; 2023, Vol. 45 Issue 6, p1266-1274, 9p
Abstrakt: To explore the correlation between peanut seed biochemical quality and stress resistance under germination stress, seed samples of 90 peanut genotypes were subjected to different types of stress including salt (0.12 mol/L NaCl), alkali (0.1 mol/L NaHCO3, pH 8.3), drought (15% PEG 6000), and low temperature (2°C soaking for 72 h). Germination indicators and peanut seed biochemical quality were analyzed by canonical correlation analysis. It was discovered that, oleic acid was positively correlated with vigor index under salt stress, while oleic acid was negatively correlated with germination percentage under low temperature stress. Oleic acid was beneficial to peanut seed germination under salt stress, but not conducive to germination under low temperature stress. There was a positive correlation between palmitic acid and germination index under drought stress, and palmitic acid was beneficial to peanut seed germination under drought stress. Vitamin E was beneficial to seed germination under alkali stress. The above results were expected to be helpful for exploring the mechanism of stress resistance during peanut germination, and also for peanut stress-resistant breeding. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index