山东农业科学2018，Vol.50Issue(1)：50-54,59,6.DOI:10.14083/j.issn.1001-4942.2018.01.009
24个石榴品种的抗寒性评价
Evaluation on Cold Resistance of 24 Pomegranate Cultivars
摘要
Abstract
The cold resistance of 24 pomegranate cultivars was evaluated by the changes of physiological and biochemical indexes under low temperature stress with one-year-old dormant shoots as materials.Adopting simulated low temperature (room temperature,0,-4,-8,-12,-16,-20℃) for low temperature treatment,the relative conductivity (REC),semilethal temperature (LT50) and proline (Pro) and malondialdehyde (MDA) contents were determined and the cold resistance of 24 pomegranate cultivars was evaluated comprehensively by membership function method.The results showed that the REC,Pro and MDA contents of one-year-old shoots of 24 pomegranate cultivars showed an increasing trend with the decreasing of stress temperature.The LT50 of Yicheng Kanghan 1 was the lowest,which was-14.32℃ and showed the best cold resistance;the LT50 of Tunisi soft-seed pomegranate was the highest,which was-7.95 ℃ and showed the worst cold resistance.Through the membership function method for comprehensive evaluation of cold-resistance,we could concluded that 8 cultivars were classified into the grade Ⅱ with cold resistance,15 cultivars were classified into the grade Ⅲ with moderate resistance and 1 cultivar belonged to the grade Ⅳ with low resistance.关键词
石榴/品种/抗寒性/评价Key words
Pomegranate/Cultivars/Cold resistance/Evaluation分类
农业科技引用本文复制引用
王庆军,罗华,赵丽娜,陈颖,王艳芹,王玉海,郝兆祥..24个石榴品种的抗寒性评价[J].山东农业科学,2018,50(1):50-54,59,6.基金项目
山东省重点研发计划项目(2016GNC110002) （2016GNC110002）
山东省农业科技发展资金项目(2015) （2015）
枣庄英才集聚工程(枣政办字[2016] 23号) （枣政办字[2016] 23号）
枣庄市科技计划项目(2016NS09) （2016NS09）
