Yang Zhipan Zhang Xiaojuan Cai Shuping Qu Dezheng Wang Guoxun Zhou Xinan.RESPONSE OF SHORT JUVENILITY VARIETIES TO PHOTOPERIODSⅡ .Response to long daylength[J].Soybean Science,2001,20(03):191-196.[doi:10.11861/j.issn.1000-9841.2001.03.0191]
大豆“短青春期”品种的光(温)反应研究Ⅲ .对长日照的反应
- Title:
- RESPONSE OF SHORT JUVENILITY VARIETIES TO PHOTOPERIODSⅡ .Response to long daylength
- 文章编号:
- 1000 -9841(2001)03 -0191 -06
- Keywords:
- Soybean ; Sensitivity to photoperiod ; Sho rt juvenility
- 分类号:
- S311
- 文献标志码:
- A
- 摘要:
- 在分析“短青春期”品种对播季和短日照反应的基础上, 本研究通过比较不同品种出苗至开花天数与开花至成熟天数对长日处理的反应, 以进一步明确夏大豆型“短青春期” 品种的光(温)敏感性特征。研究结果表明:春播条件下, 开花前16 小时长光照使“短青春期”品种中豆24 和巨丰的出苗至开花天数分别延长19 天和30 天, 是供试品种类型中对长日照最敏感的类型;开花前长日照处理, 开花至成熟天数两个“短青春期”品种间表现差异较大, 中豆24 有所延长, 而巨丰则有所缩短。开花前短日+开花后长日处理, 中豆24 和巨丰的开花至成熟天数均较春大豆明显延长, 但小于秋大豆。通过30 天和60 天的长日照处理可以发现, 长日处理结束后, 中豆24 和巨丰植株需分别接受7 -9 天和15 -18 天的短光照, 才能开花和进入结实期。中豆24 出苗至开花天数在长日下的温度敏感度高于春大豆品种, 而巨丰出苗至开花天数的温度敏感度极小。
- Abstract:
- Including tw o sho rt juvenility varieties , eight soybean varieties were used to observe the response ofdays f rom emergence to f low ering (Ve —R1)and days from f lowering to maturity (R1 —R8), under artif icialphotoperiod treatment , af ter the response to different sow ing dates and short day -leng th of these varieties wasstudied .The objects w ere to identify the characteristic of response of short juvenility varieties to photoperiods.The results under long day -leng th t reatment show ed that the day s form emergence to f lowering of two sho rt juvenility varieties, Zhongdou No .24 and Jufeng , w ere most sensitive to long day -length among all eig ht soybeancultivars .But the long day -length sensitivity to day s f rom flow ering to maturity of the two varieties w asdifferent .The number of days from R1 to R8 of Zho ngdou No .24 w as elongated , that of Jufeng w as shortened .Through the response analysis of short juvenili ty varieties to 30 d and 60 d long day -length , it w as observed tha7 -9 d and 15 -18 d short photoperiods were need respectively for the two varieties to flow er af ter long photoperiod.The temperature sensitivity of Ve —R1 of short juvenility variet ies Jufeng under long day leng th wasdifferent f rom that of Zhongdou No .24 .
参考文献/References:
1 杨志攀, 张晓娟, 蔡淑平, 等.大豆“ 短青春期” 品种的光(温)反应研究, Ⅰ.对播季的反应[ J] .中国油料作物学报, 2000 , 22(3):35~ 38 .
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备注/Memo
基金项目:国家自然科学基金项目(39670469)