| CIMMYT牧草与普通玉米杂交后植物学形态变异研究 |
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| 引用本文： | 张兴端,霍仕平,向振凡,张健,晏庆九,余志江,张芳魁,何平,秦世明.CIMMYT牧草与普通玉米杂交后植物学形态变异研究[J].中国农学通报,2009,25(16). |
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| 作者姓名： | 张兴端 霍仕平 向振凡 张健 晏庆九 余志江 张芳魁 何平 秦世明 |
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| 作者单位： | 1. 重庆三峡农业科学院,重庆万州,404001
2. 重庆市涪陵区种子管理站,重庆涪陵,408000 |
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| 摘 要： | 研究目的]为发掘利用CIMMYT牧草生长繁茂和抗逆能力强等优良遗传特性,改良普通玉米材料的抗逆性和创制新型饲草材料.方法]以CIMMYT牧草和4个普通玉米自交系为遗传交配材料,比较研究了CIMMYT牧草和4个杂交(回交)后代材料的植物学形态特征及其与普通玉米的差异.结果]CIMMYT牧草能将其生长繁茂、分蘖力强、生物产量高的特性遗传给杂交后代材料,并有较强的世代传递能力;该牧草幼苗、植株及其生长习性、花器官、种子特征等与普通玉米差异明显,其与普通玉米的杂交后代基本保持了它的生长发育特性,但花器官和种子特征更偏向于普通玉米;回交后代除保持了一定的分蘖特性、明显的多穗和返祖现象外,其余特征特性与普通玉米基本没有区别.结论] CIMMYT牧草生长繁茂和生物产量高的特性能遗传给杂交后代,世代传递能力较强,通过遗传改良途径,能将CIM-MYT牧草的优良特性转育到普通玉米中,培育出饲草玉米育种新材料.
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| 关 键 词： | CIMMYT牧草 植物学形态 变异 玉米 |
Variation of Botanical Morphology on Hybrid of CIMMYT Forage and Common Maize |
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| Zhang Xingduan,Huo Shiping,Xiang Zhenfan,Zhang Jian,Yan Qingjiu,Yu Zhijiang,Zhang Fangkui,He Ping,Qin Shiming.Variation of Botanical Morphology on Hybrid of CIMMYT Forage and Common Maize[J].Chinese Agricultural Science Bulletin,2009,25(16). |
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| Authors: | Zhang Xingduan Huo Shiping Xiang Zhenfan Zhang Jian Yan Qingjiu Yu Zhijiang Zhang Fangkui He Ping Qin Shiming |
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| Abstract: | It was studied the botanical morphology difference of CIMMYT forage and hybrid and backcross off-spring with hybrid combination of CIMMYT forage and four common maize inbred lines as study material. The result indicated, the CIMMYT forage characteristics of the overgrowth, strong tillerity and high yield could in-herit to the offspring, and the inherit ability was higher. It was obviously difference of seedling, plant, and its grow habit, flower apparatus and seed between CIMMYT forage and common maize. The hybrid offspring of CIMMYT forage and common maize keep the strong trait of growing and development, but the flower and seed character were look like common maize. The backcross offspring were not different to common maize besides with some tillers, distinct multi-ear and atavism. |
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| Keywords: | CIMMYT Forage botanical morphology variation maize |
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