Han Tia nfu,Gai JunyiQiu Jiaxun.A COMPARATIVE STUDY ON PRE- AND POST- FLOWERINGPHOTOPERIOD RESPONSE IN VARIOUS ECOTYPES OF SOYBEANS[J].Soybean Science,1998,17(02):129-134.[doi:10.11861/j.issn.1000-9841.1998.02.0129]
中国大豆不同生态类型代表品种开花前、开花后光周期反应的比较研究
- Title:
- A COMPARATIVE STUDY ON PRE- AND POST- FLOWERINGPHOTOPERIOD RESPONSE IN VARIOUS ECOTYPES OF SOYBEANS
- 文献标志码:
- A
- 摘要:
- 选用中国大豆主要生态区的代表品种12个,在南京( 32°N)春播,通过人工光照处理,比较了各类型品种开花前和开花后光周期反应敏感性的差异。结果表明, 12h短光照处理使所有品种的开花期显著提前( P < 0. 01) ; 开花后进行短日照处理,使除早熟品种东农36和泰兴黑豆以外的其它品种成熟期显著提前( P< 0. 01)。在本试验条件下,南方夏大豆品种开花后光周期反应比开花前更加敏感,其它类型品种开花前光周期反应比开花后敏感或前、后期敏感性接近。相关分析表明,大豆开花前和开花后的光周期反应敏感性,与自然光照下相应发育时期的长度正相关。较长的前期有利于单株粒数和单株产量的提高,较长的后期对提高百粒重有利。文中讨论了大豆品种开花前、开花后光周期反应敏感性与原产地日照长度及其它环境因子的关系。
- Abstract:
- Tw elv e representative soy bean va rieties collected f rom main ecolo gical regio ns inChina w ere sow n in spring in Nanjing ( 32°N) and di fferent pho to period t rea tment s werecarried o ut to compare pre- and post- flowering photoperiod respo nse o f the va rio us ecotypes.The resul ts indicated that f low ering of all v arieties wa s sig nificantly hastenedby SD ( 12h) , a nd matura tion wa s hig hly hastened ( P < 0. 01) , too , in 10 of 12 v arieties,ex cept 2 early o nes o f Dongnong 36 and Taixing heido u. Under the co ndition ofthi s ex periment, post- f low ering pho toperio d respo nse w as mo re sensi tiv e tha n preflow ering respo nse in summer- sow n soybean v arieties, other eco ty pes respo nded moresensi titv ely or nearly befo re f low ering tha n af ter f low ering. Cor relation a nalysi s show edthat the sensitivi ty o f pho to period response befo re and a fter f low ering was posi tiv elycor related to the leng th of co rrespo nding dev elo pmental stag es in natural dayleng th.Veg etativ e period leng th w as po si tiv ely related to the seed number and seed yield perplant , and lo ng er reproductive period was beneficial to the increase of 100 - seedw eight. The relationship betw een the sensi tiv ity of pre- /po st- f low ering pho to periodrespo nse and day leng th a nd o ther envi ro nmental facto rs in o riginal sites was discussed.
参考文献/References:
[1 ] 王金陵、武镛祥、吴和礼、孙善澄, 1956,中国南北地区大豆光照生态类型的分析,农业学报, 7( 2): 169- 180
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