TOWARDS THE RELIABLE PREDICTION OF TIME TO FLOWERING IN 6 ANNUAL CROPS .4. CULTIVATED AND WILD MUNG BEAN
TOWARDS THE RELIABLE PREDICTION OF TIME TO FLOWERING IN 6 ANNUAL CROPS .4. CULTIVATED AND WILD MUNG BEAN
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DOI：
10.1017/s0014479700023826
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发表时间：
1994-01-01
影响因子：
1.6
通讯作者：
SANDOVER, S
中科院分区：
文献类型：
--
作者：
ELLIS, RH;LAWN, RJ;SANDOVER, S
栽培绿豆、黑克豆和米豆（Vigna mungo, Vigna radiata ssp.）的8个基因型。为了提供一系列的光热环境，在澳大利亚的六个地点，分别在不同的日期播种了辐射和Vigna umellata。此外，还收录了4个相关的野生物种——辐射野葡萄。Sublobata播种了五次。从播种到首次开花的时间(f)在不同的环境下变化为34 ~ 317 d；花前温度和光周期平均值为12.7 ~ 29.1℃，11.8 ~ 15.5 h d-1。在4个基因型中，光周期对首次开花进度速率（1/f）没有影响，但在每种情况下，1/f与平均温度之间均存在显著正相关。这些简单的热时间关系在四个基因型之间没有显著差异；普通的基础温度是7.9摄氏度。在两个基因型中，当平均光周期小于13 h d-1 （p < 0.01）而大于14 h d-1的延迟开花时，热响应面很好地描述了两个基因型的观察结果。在其余基因型中，光热平面最适合描述观察结果，即1/f受温度和光周期调节。基于我们的数据的模型预测与在早期受控环境研究中观察到的三种基因型的首次开花时间很好地一致。
Eight genotypes of cultivated mung bean, black gram and rice bean (Vigna mungo, Vigna radiata ssp. radiata and Vigna umbellata, respectively) were sown at six sites in Australia on various dates in order to provide a range of photothermal environments. In addition, four accessions of the related wild species Vigna radiata ssp. sublobata were sown on five occasions. Times from sowing to first flowering (f) varied between environments from 34 to 317 d; pre-flowering temperature and photoperiod means ranged from 12.7-degrees to 29.1-degrees-C and from 11.8 to 15.5 h d-1. No effect of photoperiod was detected on rate of progress towards first flowering (1/f) in, four genotypes, but in each case a significant positive relation was detected between 1/f and mean temperature. These simple thermal time relations did not differ significantly among these four genotypes; the common base temperature was 7.9-degrees-C. In two genotypes observations were well described by a thermal response plane when the mean photoperiod was less than 13 h d-1 (p < 0.01) but photoperiods greater than 14 h d-1 delayed flowering. In each of the remaining genotypes the observations were best described by photothermal planes, that is, 1/f was modulated by temperature and photoperiod. Predictions from the models based on our data were in good agreement with the times to first flowering observed in three genotypes in an earlier controlled environment study.