| 冬小麦品种生命力衰退原因探析 |
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| 引用本文： | 卫云宗,刘新月,张久刚. 冬小麦品种生命力衰退原因探析[J]. 中国生态农业学报, 2004, 12(1): 50-52 |
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| 作者姓名： | 卫云宗 刘新月 张久刚 |
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| 作者单位： | 山西省农业科学院小麦研究所,临汾,041000 |
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| 基金项目： | "九五"国家育种攻关项目(96-002-02-03-4)和国家高技术研究(863)发展计划节水重大项目(2002AA2Z4011)共同资助 |
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| 摘 要： | 研究冬小麦品种生命力衰退的原因结果表明 ,“12 0 5 7”、“晋麦 33号”和“晋麦 4 7号”3个旱地冬小麦骨干品种丰稳性在于其变异大的成穗数和稳定的穗粒重 ,品种生命力衰退的主要原因是其抗逆性丧失 ,并将品种生命周期划分为优势期、品种 环境适应期和衰退期。
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| 关 键 词： | 冬小麦 品种生命力 衰退原因 |
| 收稿时间： | 2002-12-02 |
| 修稿时间： | 2002-12-02 |
A study on declining cause of varietal vitality in winter wheat |
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| WEI Yun-Zong,LIU Xin-Yue and ZHANG Jiu-Gang. A study on declining cause of varietal vitality in winter wheat[J]. Chinese Journal of Eco-Agriculture, 2004, 12(1): 50-52 |
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| Authors: | WEI Yun-Zong LIU Xin-Yue ZHANG Jiu-Gang |
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| Abstract: | The declining cause of varietal vitality is discussed in winter wheat. The results show that the bumper and stability of the wheat mainstay varieties "12057","Jinmai 33" and "Jinmai 47" depend on their bigger variation of ear numbers and stable grain weights pear and 1000 kernel weight. The main cause of varietal vitality decline is due to the loss of its resistance. The life cycle of varieties is divided into superiority stage, adaptation stage of variety and environment, and variety decline stage. All varieties possess the effect of time and space. |
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| Keywords: | Winter wheat Varietal vitality Declining cause |
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