鄂芝2号和中芝9号温光反应的初步研究  

Study on the Temperature-light Effects of Sesame E-zhi No.2 and Zhong-zhi No.9

作　　者：王晓玲[1] 顾正清[1] 岳大容[1] 

机构地区：[1]长江大学农学院,湖北荆州434025

出　　处：《湖北农业科学》2005年第3期50-55,共6页Hubei Agricultural Sciences

基　　金：湖北省教育厅支持项目(99A034);湖北农学院重点项目(HNZD200205)

摘　　要：用白芝麻品种鄂芝2号和黑芝麻品种中芝9号分期进行夏播和秋播,使两个品种各生育阶段处于不同的光温条件下,用试验当年相应时段的温度和实际日照长度对芝麻各生育阶段的发育特性进行相关分析。结果表明:芝麻苗期和蕾期感温性强,感光性较弱,在光温综合作用中,温度是主要因子;芝麻开花最适应的温度为27～31℃,该温度有利于多开花和延长开花期天数。开花阶段历期与光周期中的实际日长的相关性几乎为零;成熟期20～40℃的积温有利于芝麻蒴果种子的发育。中芝9号的感温性比鄂芝2号更强,中芝9号的感光性比鄂芝2号迟钝。中芝9号的苗期、开花期、成熟期历期较稳定,其丰产性、稳产性较好,适合作秋芝麻栽培。White sesame E-zhi NO.2 and black sesame Zhong-zhi NO.9 were sowed at intervals as summer-sesame and autumn-sesame The temperature and sunlight-length of different growing-stage,The result showed that seedling-stage and budding-stage were temperature-sensitive and weak phototonus and temperature was the main factor in the compositive effect of temperature and light.The temperature range of 27～31℃ was optimal for sesame to produce more flowers and prolong the flowering days,but the length of flowerig-stage and practical sunlight-hour had no correlativity.Accumulate-temp. of 20～40℃ in mature-period was beneficial to the growth of sesame capsule and seed. Zhong-zhi No.9 was more sensitive to temperature but weaker sensitive to and weaker sensitive to light than E-zhi No.2. Zhong-zhi No.9 was a better variety as autumn-sesame with high,yield and stable length of seedling-stage,flowering-stage and mature-stage.

关 键 词：芝麻 温光反应 生育阶段 相关分析 

分 类 号：S565.3[农业科学—作物学] Q945.43[生物学—植物学]