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基于主成分分析和隶属函数的紫花苜蓿引种初步评价

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为探索适宜在半干旱风沙区进行种植的苜蓿(Medicago sativa)品种,在宁夏中卫市东园镇瑞应村进行引种试验.从7个苜蓿品种的根长、根重、株高、主枝侧枝数、茎叶比、干鲜比、产草量等方面进行比较研究.结果表明:①甘农4号紫花苜蓿株高、茎叶比、干鲜比均较大,且显著高于其他供试苜蓿品种(P＜0.05);鲜草产量则是甘农8号最大,且与株高、主技侧枝数存在明显的相关性;②主成分分析显示,根长、鲜根重、株高和主枝侧枝教对紫花苜蓿的综合生长性状影响较大;③隶属函数综合评价结果表明,甘农3号、甘农4号的得分比较高,各项指标和性状较好,是中卫市瑞应村适合种植的苜蓿品种;皇后的生产性能较差,不适宜在该地区建植多年生牧草地.
Preliminary Evaluation of Alfalfa Introduction Based on Principal Component Analysis and Subordinate Function
In order to explore the suitable planted varieties in semi-drought and sandy area of Alfalfa(Medicago sativa),the introduction experiment was conducted in Zhongwei city of Ruiying village.A comparative study of the 7 Alfalfa Varieties on root length,root weight,height,number branch ttunk,stem weight/leaf weight,dry weight/fresh weight,grass yield and other aspects was done.The results showed that:(i) Gannong No.4 alfalfa plant height,SW/LW,DY/FY were large,and significantly higher than the other tested varieties of Alfalfa (P ＜ 0.05);Fresh yield was Gtunon on the 8th maximum,and there was a significant correlation with plant height,number branch trunk;(ii) Principal component analysis showed that root length,fresh root weight,height and number branch trunk of alfalfa had greater impact on overall growth traits;(iii)The subordinate function of comprehensive evaluation results showed that the gannong No.3,gannong No.4 high score,the better indicators and character,was suitable for planting in Zhongwei city of Ruiying village;Queen's weakest performance,not suitable for planting perennial grassland construction in the area.

Semi-drought and sandy areaMedicago sativaPerformance testComprehensive evaluationPrincipal component analysisSubordinate function

庞丹波、李生宝、潘占兵、蔡进军、董立国、张源润、王川

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宁夏大学农学院,宁夏银川750021

宁夏农林科学院,宁夏银川750002

半干旱风沙区 紫花苜蓿 品比试验 综合评价 主成分分析 隶属函数

科技惠民项目宁夏中卫绿洲边缘植被恢复与生态资源开发利用技术集成示范宁夏农林科学院自主研发项目

2013GS2G640202NKYJ-14-03

2015

10.16213/j.cnki.scjas.2015.06.086

西南农业学报
四川,云南,贵州,广西,西藏及重庆省（区,市）农科院

西南农业学报

CSTPCDCSCD北大核心
影响因子：0.679
ISSN：1001-4829
年,卷(期)：2015.28(6)
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