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| 小麦生物节水品种的遗传改良技术 | |
| 引用本文： | 赵松山,陆莉,孙静,陈建中,陈桂林,汪俊仙,张金霞.小麦生物节水品种的遗传改良技术[J].河北农业科学,2008,12(11):44-47. |
| 作者姓名： | 赵松山 陆莉 孙静 陈建中 陈桂林 汪俊仙 张金霞 |
| 作者单位： | 1. 沧州市农林科学院,河北,沧州,061001 2. 沧州市农业局,河北,沧州,061001 3. 沧州职业技术学院,河北,沧州,061001 |
| 摘 要： | 利用生物遗传改良技术,培育水分高效利用的多抗节水高产品种是实现生物节水最为经济有效的方法。根据20多年小麦育种实践,提出了小麦生物节水品种应具备的特点及两圃平行交替选择生物节水品种的遗传改良技术,突破了常规育种技术单一选种环境、主要目标性状基因不能同时表达和遗传类型不能充分表现的缺陷。通过加大逆境选择压力以及后代材料逆境与非逆境的交替选择,多抗节水高产品种的遗传改良效果显著,同时提出加强基础理论研究,发掘抗旱节水基因资源,将常规育种和基因工程育种有效结合的育种途径,提高生物节水育种水平。 |
| 关 键 词： | 小麦 生物节水品种 遗传改良 育种技术 |
Genetic Improvement Technology on Wheat Varieties of Biological Water-saving |
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| ZHAO Song-shan,LU Li,SUN Jing,CHEN Jian-zhong,CHEN Gui-lin,WANG Jun-xian,ZHANG Jin-xia.Genetic Improvement Technology on Wheat Varieties of Biological Water-saving[J].Journal of Hebei Agricultural Sciences,2008,12(11):44-47. | |
| Authors: | ZHAO Song-shan LU Li SUN Jing CHEN Jian-zhong CHEN Gui-lin WANG Jun-xian ZHANG Jin-xia |
| Institution: | ZHAO Song-shan1,LU Li1,SUN Jing2,CHEN Jian-zhong3,CHEN Gui-lin3,WANG Jun-xian3,ZHANG Jin-xia1 |
| Abstract: | Cultivating multi-resistant,water-saving and high-yield varieties by genetic improvement technology is the most efficient method.On the basis of breeding practice of wheat for 20 years,breed characteristics of biological water-saving wheat and genetic improvement technology of parallel,alternative selection of two seed plots were put forward.The single seed selection environment and disadvantages that the target characters genes and the genetic types couldn't express at the same time fully were broken through.By increasing selection pressure under adversity and non adversity circumstances alternative of selection,effects of genetic improvement on multi-resistant,water-saving and high-yield varieties were prominent.Meanwhile,the biological water-saving breeding level could be improved by enhancing basic theoretical researches,excavating water-saving gene resources,combining convertional breeding with gene engineering breeding efficiently. |
| Keywords: | Wheat Varieties of biological water-saving Genetic improvement Breeding technology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |