【摘要】 以我国北方地区栽培面积较大的18个豇豆品种为试材,通过夏季田间试验、人工气候室苗期耐高温试验,比较了不同豇豆品种的耐热性。夏季田间试验结果表明:不同耐热豇豆品种在出苗至齐苗时间、花期株高、茎粗、花梗长度等植物学特征和果荚长度、质量等果实性状及生物学产量等生物学性状方面差异显著;地豇豆品种不宜在高温、长日照的夏季种植;豇豆各农艺性状间存在极显著的相关性;早优一号单荚质量和总产量最高。苗期耐高温试验结果表明:高温胁迫条件下,早优一号相对电导率最低,净光合速率最高,因而比较耐热。更多还原

【Abstract】 The changes of growth and physiological characters of 18 cowpea(Vigna unguiculata W.)commonly cultured in north China were studied.The fruit stage researches were actualized in farmland in summer and the seedling experiments were done in phytotron and light growth incubator.The results of the fruit stage researches in farmland in summer showed :the vine full date, plant high,stalk diameter and peduncular length,legumen length,quality per legumen and yields of 18 cowpea varieties were significantly different;Caixing shandihong,Wuyuehongdidoujia and Guadi shanpohong were not suitable to growth in high temperature and long sunlight.The agriculture properties of cowpea exist very notable relativity.The quality per legumen and yields of Zaoyou No.1 was tiptop.The results of the seedling experiments in phytotron and light growth incubator showed that relative conductivity of Zaoyou No.1 was the lowest and The Pn of Zaoyou No.1 was tiptop in heat-tolerance.更多还原