STUNTING IN GIGAS WHEAT AS INFLUENCED BY TEMPERATURE AND DAYLENGTH
STUNTING IN GIGAS WHEAT AS INFLUENCED BY TEMPERATURE AND DAYLENGTH
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DOI：
10.1071/pp9860381
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发表时间：
1986-01-01
期刊：
影响因子：
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通讯作者：
EVANS, LT
中科院分区：
文献类型：
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作者：
ATSMON, D;BUSH, MG;EVANS, LT
当在15/10 ℃下培养单粒小麦品系492的植物时，所有植物在长日照（LD）下严重发育不良，但在短日照（SD）下正常。SD和LD之间相互转移的结果表明，品系492植物在15/10 ℃下通过对LD非常敏感的阶段。播后14 ~ 27天，在芽位双垄形成前。LD在这段时间内导致大多数植物发育迟缓，而SD在这一阶段允许所有植物正常发育。在15/10 ℃的温度范围之间的转移C和24/19 °。LD下的C也表明，双脊形成之前的时期是发育迟缓的关键。在单茎系492中，LD中的矮化是由低于21/16 ℃的温度状况引起的。而在寡秆系380中，即使在15/10 ° C下，大多数植物的主枝也是正常的。C.
When plants of the uniculm ''gigas'' wheat line 492 were grown at 15/10.degree.C , all plants were severely stunted in long days (LD) but normal in short days (SD). The results of reciprocal transfers between SD and LD indicate that line 492 plants pass through stage which is very sensitive to LD at 15/10.degree. C, between about 14 and 27 days after sowing, just before double ridge formation at the shoot space. LD during that interval cause stunting in most plants whereas SD at that stage allowed all plants to develop normally. Transfer between temperature regimes of 15/10.degree. C and 24/19.degree. C under LD also indicated that the period just prior to double ridge formation was critical for stunting. In the uniculm line 492 stunting in LD was caused by temperature regimes cooler than 21/16.degree. C, whereas in the oligoculm line 380 the main shoots of most plants were normal even at 15/10.degree. C.