紫花苜蓿再生特性及再生性状相关性研究

doi:10.11733/j.issn.1007-0435.2007.05.005

›› 2007, Vol. 15 ›› Issue (5): 423-428.DOI: 10.11733/j.issn.1007-0435.2007.05.005

紫花苜蓿再生特性及再生性状相关性研究

王建勋^1,2, 杨青川¹, 曹致中², 郭文山¹, 康俊梅¹, 张东红³

1. 中国农业科学院北京畜牧兽医研究所, 北京, 100094;
2. 甘肃农业大学草业学院, 兰州, 730070;
3. 内蒙古乌盟草原站, 内蒙古, 016000

收稿日期:2007-03-16 修回日期:2007-06-12 出版日期:2007-10-15 发布日期:2007-10-15
通讯作者: 杨青川,E-mail:qchyang66@yah oo.com.cn
作者简介:王建勋(1980- )男,山西右玉人,硕士研究生,研究方向为牧草种质资源及育种,Email:xunwjian2120@163.com
基金资助:
国家高新技术发展计划“863”项目(2002AA241101)

Studying on Regrowth Characteristics and their Correlative Relationship of Medicago sativa Individual Plant

WANG Jian-xun^1,2, YANG Qing-chuan¹, CAO Zhi-zhong², GUO Wen-shan¹, KANG Jun-mei¹, ZHANG Dong-hong³

1. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 10094, China
2. Pratacutural College, Gansu Agricultural University, Lanzhou, Gansu Province 730070, China;
3. Grassland station of Wumen, Inner Mongolia 016000, China

Received:2007-03-16 Revised:2007-06-12 Online:2007-10-15 Published:2007-10-15

摘要/Abstract

摘要： 通过一年刈割4茬,对中苜2号紫花苜蓿(Medicago sativa L.cv.Zhongmu No.2)单株的再生特性及再生性状相关性进行研究,以期为苜蓿育种?栽培利用提供依据。结果表明:单株之间再生性状存在较大变异,再生总重(39.23%)>再生分枝数(31.64%)≥再生强度(30.94%)>再生单茎重(26.08%)>再生速度(13.15%)>再生株高(10.20%);茬次间除再生强度外其余再生性状变异系数均表现为第4茬>第2茬>第3茬;各个再生性状均在第2、3茬间为极显著正相关,以再生速度(R²=0.8139)和再生分枝数(R²=0.8578)相关系数较大;各个再生性状与再生株重在第2、4茬和第3茬分别呈极显著正相关显著或极显著正相关。

关键词: 紫花苜蓿, 单株, 再生特性, 相关性

Abstract: In order to provide the basis for alfalfa breeding and planting, the regrowth characteristics and the correlative relationship between the regrowth dry weight and cutting sequences of Medicago sativa L. cv. Zhongmu No.2 individual plant were studied through application of four defoliations in one year. The results show that great variance coefficient of regrowth characteristics occurred in individual plants and from highest to lowest the variance coefficient were: total regrowth dry weight per plant (39.23%)>regrowth shoot numbers (31.64%)≥regrowth intensity (30.94%)>regrowth shoot weight (26.08)>regrowth rate (13.15%)>regrowth height (10.20%) and variance coefficient of those regrowth characteristics showed increasing trend with defoliation sequences except the regrowth intensity. According to the correlation analysis results, significant positive correlations among all the regrowth characteristics were detected in 2nd and 3rd cuttings and regowth rate and regrowth shoot numbers had high correlation coefficient with R²=0.8139, 0.8578, respectively. Each regrowth characteristic was very significantly in the 2nd and 4th cutting and significantly or very significantly in 3rd cutting positively correlated to the regrowth dry weight, respectively.

Key words: Medicago sativa L, Individual plant, Regrowth characteristics, Correlation

中图分类号:

S812
Q943.1

王建勋, 杨青川, 曹致中, 郭文山, 康俊梅, 张东红. 紫花苜蓿再生特性及再生性状相关性研究[J]. , 2007, 15(5): 423-428.

WANG Jian-xun, YANG Qing-chuan, CAO Zhi-zhong, GUO Wen-shan, KANG Jun-mei, ZHANG Dong-hong. Studying on Regrowth Characteristics and their Correlative Relationship of Medicago sativa Individual Plant[J]. , 2007, 15(5): 423-428.

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紫花苜蓿再生特性及再生性状相关性研究

Studying on Regrowth Characteristics and their Correlative Relationship of Medicago sativa Individual Plant

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