多叶型和三叶型紫花苜蓿产量与相关性状的回归分析

doi:10.3864/j.issn.0578-1752.2010.14.025

中国农业科学 ›› 2010, Vol. 43 ›› Issue (14): 3044-3050 .doi: 10.3864/j.issn.0578-1752.2010.14.025

• 研究简报 • 上一篇

多叶型和三叶型紫花苜蓿产量与相关性状的回归分析

王雯玥,韩清芳,宗毓铮,贾志宽,聂俊峰,闵安成,马晓丽

(西北农林科技大学干旱半干旱农业研究中心/农业部作物生产与生态重点开放实验室)

收稿日期:2009-12-01 修回日期:2010-05-13 出版日期:2010-07-15 发布日期:2010-07-15
通讯作者: 韩清芳

Regression Analysis on Hay Yield and Relative Characters of Multifoliolate Alfalfa and Trifoliolate Alfalfa

WANG Wen-yue, HAN Qing-fang, ZONG Yu-zheng, JIA Zhi-kuan, NIE Jun-feng, MIN An-cheng, MA Xiao-li

(西北农林科技大学干旱半干旱农业研究中心/农业部作物生产与生态重点开放实验室)

Received:2009-12-01 Revised:2010-05-13 Online:2010-07-15 Published:2010-07-15
Contact: HAN Qing-fang

摘要/Abstract

摘要：

【目的】分析多叶型和三叶型苜蓿的生长特性、光合速率和产量等,以及相同性状在两类叶型之间的差异,为苜蓿的品种改良及生产应用提供理论参考。【方法】对选育的多叶型紫花苜蓿和普通的三叶型紫花苜蓿进行田间试验,并对其生长性状、光合速率和产量数据进行测定,通过主成分分析和回归分析,分别建立两类叶型紫花苜蓿生长性状及光合速率与产量相关性的回归方程,并对两个方程中的相同性状进行差异分析;【结果】枝条密度、比叶重、单枝干重、株高、单枝复叶数、光合速率、茎叶比和鲜干比等性状与多叶型苜蓿产量显著相关,株高、枝条密度、比叶重、节间数、鲜干比和茎叶比等性状与普通三叶型苜蓿产量显著相关。5个显著影响两类叶型苜蓿产量的相同性状的差异显著性检验结果表明,多叶型紫花苜蓿的枝条密度,茎叶比、鲜干比均显著低于三叶型,比叶重显著高于三叶型苜蓿(P＜0.05),两类叶型苜蓿的株高差异不显著;【结论】多叶型品系的产量显著高于三叶型品种,影响两类叶型苜蓿产量的性状并不相同,同一性状对两类叶型紫花苜蓿的产量影响程度不同。影响产量的生长性状中,多叶型苜蓿虽然枝条密度比三叶型低,但比叶重的增高、茎叶比和鲜干比的降低仍促进其产量的提高。通过合理密植、促进分枝,可进一步提高多叶型苜蓿的干草产量。

关键词: 多叶型紫花苜蓿, 产量, 主成分分析, 回归分析, 生长指标

Abstract:

【Objective】 The purpose of this study was to provide academic references for the variety improvement and production of alfalfa by analyzing the main characters of hay yield between multifoliolate alfalfa and trifoliolate alfalfa. 【Method】 The growth characters and the net photosynthesis rate(Pn) were mea sured. The regression equation of characters related to the hay yield was established by principal components analysis and stepwise regression analysis. And then, significance test of difference and variance analysis were used for eigenvectors in principal component analysis. 【Result】 The results showed that the hay yield of multifoliolate alfalfa had significant correlation with density of branches, specific leaf weight, dry weight of branches, plant height, number of compound leaves, photosynthesis rate, stem/leaf ratio and fresh/dry ratio (P＜0.05). What significantly correlated with the hay yield of trifoliolate alfalfa includes plant height, density of branches, specific leaf weight, internode number, fresh/dry ratio and stem/leaf ratio (P＜0.05). The results of significance test of difference in the common characters between two different kinds of alfalfa showed that the density of branches, stem/leaf ratio and fresh/dry ratio in multifoliolate alfalfa were significantly lower than those in trifoliolate alfalfa, specific leaf weight in multifoliolate alfalfa was significantly higher than those in trifoliolate alfalfa (P＜0.05). There was no obvious difference in plant height between the two kinds of alfalfa. 【Conclusion】 As a whole, the hay yield of multifoliolate alfalfa was significantly higher than trifoliolate alfalfa. There is a difference in the characters between multifoliolate alfalfa and trifoliolate alfalfa. The same characters in the stepwise regression had different effects on different kinds of alfalfa. The hay produce can by improved by increasing the specific leaf weight and decreasing the fresh/dry ratio and stem/leaf ratio. The density of branches of multifoliolate alfalfa is lower than trifoliolate alfalfa, therefore, the hay yield of multifoliolate alfalfa can be enhanced by increasing the number of branches number and applying rational close planting.

Key words: multifoliolate alfalfa, hay yield, principal components analysis, regression analysis, growth character

王雯玥,韩清芳,宗毓铮,贾志宽,聂俊峰,闵安成,马晓丽
. 多叶型和三叶型紫花苜蓿产量与相关性状的回归分析[J]. 中国农业科学, 2010, 43(14): 3044-3050 .

WANG Wen-yue,HAN Qing-fang,ZONG Yu-zheng,JIA Zhi-kuan,NIE Jun-feng,MIN An-cheng,MA Xiao-li
. Regression Analysis on Hay Yield and Relative Characters of Multifoliolate Alfalfa and Trifoliolate Alfalfa
[J]. Scientia Agricultura Sinica, 2010, 43(14): 3044-3050 .

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多叶型和三叶型紫花苜蓿产量与相关性状的回归分析

Regression Analysis on Hay Yield and Relative Characters of Multifoliolate Alfalfa and Trifoliolate Alfalfa

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