南方农业学报2012，Vol.43Issue(7)：929-931,3.DOI:10.3969/j:issn.2095-1191.2012.07.929
花粉生活力与苦瓜植株耐冷性的关系
Relationship between pollen vitality and chilling tolerance of bitter gourd
摘要
Abstract
[Objective]The relationship between pollen vitality and chilling tolerance of bitter gourd was studied in the present experiment to provide references for screening chilling tolerant varieties. [Method]The pollens of 10 bitter gourd varieties were cultured under 9,12,15,18 and 25℃, respectively, to investigate, their pollen germination rate and screen suitable temperature for distinguishing different varieties. Pollen germination rates of 9 bitter gourd varieties were investigated at screened low-temperature and chilling injury indicators of nine varieties were determined at 10℃ at seedling stage to analyze their correlation. [Result]It was found that 15℃ was an appropriate temperature to distinguish pollen germination rates of different bitter gourd varieties. Nine bnter gourd varieties could be classified into 3 chilling tolerant types based on the significance of difference in their pollen germination rates al 15℃ and chilling injury indicator at 10℃. respectively, and their pollen germination rates at 15℃ was significantly and negatively correlated with chilling injury indicator and the correlation coefficient was -0.8646. [Conclusion]Pollen germination rate at low temperature can be used as identification indicator of chilling tolerance in bitter gourd-关键词
苦瓜/花粉萌发/冷害指数/低温胁迫/相关性Key words
Momorriica charantia L./pollen germination/chilling injury index/low temperature stress/correlation分类
农业科技引用本文复制引用
陈小凤,黄如葵,黄玉辉,陈振东,钟波..花粉生活力与苦瓜植株耐冷性的关系[J].南方农业学报,2012,43(7):929-931,3.基金项目
现代农业产业技术体系专项资金项目(CARS-25-G-38) （CARS-25-G-38）
广西科学基金项目(0991018) （0991018）
广西农业科学院科技发展基金项目(201012) （201012）
