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采用低温下发芽鉴定、田间自然低温鉴定和种子生理生化指标测定等方法，研究了８个辣椒品种种子萌发期耐冷性反应。结果表明，供试材料的发芽临界低温范围为１０．２９～１５．１℃，低温下室内耐冷性鉴定温度指标为１８℃。辣椒耐冷性鉴定指标可采用１８℃下发芽指数、田间耐冷性总指数和耐冷性隶属函数值。辣椒耐冷性可分为强、中、弱３个类型。
The cold tolerance of 8 capsicum cultivars at germination stage was studied by using germination identification at low temperature, natural low temperature identification in field and determination of physiological and biochemical indexes of seeds. The results showed that the critical low temperature range of the tested materials was 10.29 ~ 15.1 ℃, and the indoor temperature index of cold tolerance was 18 ℃. Chill tolerance index can be used 18 ℃ germination index, field cold tolerance index and cold tolerance membership function values. Chill tolerance can be divided into strong, medium and weak 3 types.