摘要
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。
Eight pepper cultivars were studied for their chilling tolerance at theseed germination stage using germination test under natural and controlled low tempera-ture conditions ,and biochemical and physiological target test.The results showed thatthe critical low temperature range of seed germination was 10.29～ 15.1℃in 8 peppercultivars. Appraisal temperature index on chilling tolerance in the room was 18℃. Thegermination index below 18℃,chilling tolerance total index in the field and subordinatenumber function valus (SNEV)were used to identity the chilling tolerance appraisal in-dexes. Chilling tolerance in pepper can be classified into 3 types of strong,middle andweak tolerance to chilling.
出处
《西北农业大学学报》
CSCD
1995年第1期30-34,共5页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
关键词
辣椒
萌发期
耐冷性鉴定
指标
pepper,germination stage,chilling tolerance index
