西北林学院学报2018，Vol.33Issue(2)：62-69,187,9.DOI:10.3969/j.issn.1001-7461.2018.02.10
8个矮牵牛品种抗旱性综合评价分析
Comprehensive Evaluation and Analysis of Drought Resistance of 8 Petunia Cultivars
摘要
Abstract
The drought resistance of 8 varieties of Petunia hybrida was studied under the simulated drought conditions.Physiological indexes were measured,such as net photosynthetic rate,transpiration rate,water use efficiency,the content of relative water,chlorophyll,malondialdehyde,soluble protein,the activities of superoxide dismutase,peroxidase and catalase in the leaves.Combined with morphological indicators,the comprehensive evaluation on drought resistance was conducted by subordinate function.The results showed that the flowering rate,flower diameter,plant height,net photosynthetic rate,transpiration rate and the content of relative water,chlorophyll decreased with the decrease of soil relative water content,water use efficiency increased first and then decreased.The activities of superoxide dismutase,peroxidase and catalase increased.By subordinate function analysis,it was concluded that the drought resistance of 8 varieties decreased in the order of 3＞ 6＞ 4＞ 2＞ 5＞ 1＞ 8＞ 7.These results would provide reference for the application of 8 P.hybrida cultivars,and lay the foundation for drought resistant breeding of P.hybrida.关键词
矮牵牛/生理指标/抗旱性评价/隶属函数Key words
Petunia hybrida/physiological index/drought resistance evaluation/membership function分类
农业科技引用本文复制引用
关春景,焦孟月,张彦妮..8个矮牵牛品种抗旱性综合评价分析[J].西北林学院学报,2018,33(2):62-69,187,9.基金项目
黑龙江省留学归国基金项目(LC201410). （LC201410）
