摘要
用耐冷力不同的黄瓜品种，研究了低温胁迫再回温后幼苗子叶的乙烯释放量、电解质渗出率的变化及其与品种耐冷力的关系。结果表明：０℃低温处理引起乙烯释放量急剧增加，但耐冷力不同的品种间表现出明显的差异；耐冷力强的品种乙烯释放量高，且增加持续的时间较长；－３℃处理反而明显降低乙烯释放量；电解质渗出率随低温胁迫加剧而递增，与品种耐冷力成相反趋势。乙烯释放量所反映的品种耐冷力与电解质渗出率反映的结果相一致。
The relations of cucumber susceptibility to chilling with ethylene releaseand electrolyte leakage in cotyledon of cucumber were studied after rewarming the chill-ing stressed seedlings.The results indicated that the ethylene release increased rapidlyafter 0℃ treatment ,and there were significant differences among different chilling sus-ceptible cultivarsMore and longer boosting in ethylene release were found for low chill-ing susceptible cultivars ,while-3℃treatment significantly inhibited ethylene produc-tion.The electrolyte leakage increased by chilling stress, and showed negative relationswith cultivar sensitivity to clilling. The chilling susceptibility evaluated with ethylene-production was in agreement with the sensitivity reflected by electrolyte leakage.
出处
《西北农业大学学报》
CSCD
1994年第4期61-65,共5页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
关键词
黄瓜
低温胁迫
乙烯释放量
电解质
cucumber ,cultivar tolerant to chilling ,chilling stress ,ethylene release,electrolyte leakage
