Quantitative control of flowering time in wheat cultivars by vernalization and photoperiod sensitivities
Quantitative control of flowering time in wheat cultivars by vernalization and photoperiod sensitivities
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通过春化和光周期敏感性定量控制小麦品种的开花时间
DOI：
10.1071/ar9730657
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发表时间：
1973
影响因子：
1.9
通讯作者：
J. Syme
中科院分区：
文献类型：
--
作者：
J. Syme
用种子春化和长日照处理加速小麦发育的方法，测定了一系列小麦品种的春化敏感性（V）和光周期敏感性（P）。用多元线性回归分析，在三个地点的19次播种中，V和P解释了从播种到抽穗或到开花的品种变异的77-94%。从回归方程中估计出适应变播期的P和V的最佳组合。在两种情况下，这被预测为具有高V和低P值的小麦。多元回归方程系数的季节变化与环境温度和光周期的变化有关。
Vernalization sensitivity (V) and photoperiod sensitivity (P) were measured in a range of wheat cultivars by the hastening of development brought about by seed vernalization and long-day treatment, respectively. Using multiple linear regression analysis V and P accounted for 77-94% of cultivar variation in the time from sowing to ear emergence, or to anthesis, over 19 sowings at three sites. From the regression equations, the optimum combination of P and V for adaptation to variable sowing time was estimated. In two cases this was predicted to be a wheat with high V and low P values. Seasonal changes in the coefficients of the multiple regression equations were related to environmental changes in temperatures and photoperiod.