THE PHYSIOLOGY OF VARIATION IN THE TIME OF EAR EMERGENCE AMONG WHEAT-VARIETIES FROM DIFFERENT REGIONS OF THE WORLD
THE PHYSIOLOGY OF VARIATION IN THE TIME OF EAR EMERGENCE AMONG WHEAT-VARIETIES FROM DIFFERENT REGIONS OF THE WORLD
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DOI：
10.1007/bf00022955
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发表时间：
1985-01-01
期刊：
影响因子：
1.9
通讯作者：
HOOGENDOORN, J
中科院分区：
文献类型：
--
作者：
HOOGENDOORN, J
在对 33 个不同地理来源的品种进行的受控环境实验中，发现了对光周期和春化反应的差异以及独立于光周期和春化作用（早熟性本身）的遗传变异，影响了小麦穗的出现时间。将结果与来自美国农业部小谷物收藏的 10409 个小麦品种的出穗时间分析进行了比较，这些小麦品种是俄勒冈州彭德尔顿秋季播种的和北达科他州法戈春季播种的。无论是在受控环境条件下还是在田间，光周期和春化敏感性差异对穗出现时间的影响与早熟本身的影响相似。来自低纬度地区的大多数材料由于对光周期和春化不敏感以及加速穗出现的早熟本身因素而迅速出现穗。迟到在来自北欧、阿富汗和土耳其的种质中很常见，这是由于对光周期和春化作用的敏感性，以及延迟穗出现的提前本身因素。讨论了早熟本身的生理基础。
Differences in response to photoperiod and vernalization and genetic variation independent of photoperiod and vernalization (earliness per se), affecting time of ear emergence of wheat, were identified in controlled environment experiments with 33 varieties of diverse geographical origin. The results were compared with an analysis of time of ear emergence of 10409 Triticum aestivum accessions from the USDA Small Grain Collection grown from autumn sowings in Pendleton, Oregon, and spring sowings in Fargo, North Dakota. The effect of differences in photoperiod and vernalization sensitivity on time of ear emergence was similar to the effect of earliness per se, both under controlled environment conditions and in the field. Most of the accessions from low latitude regions reached ear emergence rapidly owing to their insensitivity to photoperiod and vernalization and earliness per se factors accelerating ear emergence. Lateness was common among accessions from Northern Europe, Afghanistan and Turkey, which was due to sensitivity to photoperiod and vernalization, and to earliness per se factors delaying ear emergence. The physiological basis of earliness per se is discussed.