鲁西南地区引种苜蓿品种的灰色关联度分析与综合评价

Grey Correlation Analysis of Different Alfalfa(Medicago Sativa)Varieties' Performance in Southwest of Shandong Province

为避免盲目引种,在山东省的鲁西南地区引种了28个苜蓿品种,并且采用灰色关联度分析法对该区域苜蓿的草产量、鲜干比、叶茎比、株高等农艺性状和中性洗涤纤维(ADF)、酸性洗涤纤维(NDF)、粗蛋白(CP)营养品质进行了分析与综合评价后,进一步分析了相对饲喂价值(RFV)与不同苜蓿品种间的关系。结果表明:鲁西南地区,鲜草产量和干草产量最高的是中苜3号,鲜干比最高的是中苜6号,叶茎比最高的是SR4030,株高最高的是WL656HQ,粗蛋白含量最高的品种是中苜3号,中性洗涤纤维和酸性洗涤纤维最低的是阿尔冈金,相对饲喂价值最高的是阿尔冈金,各项指标的权重大小顺序为粗蛋白>酸性洗涤纤维>株高>鲜干比>干重>中性洗涤纤维>叶茎比>鲜重。综合生产性能表现较好的品种依次为中苜3号、阿尔冈金、中苜2号、SR4030、无棣苜蓿。

28 alfalfa varieties were introduced in southwest of Shandong Province.Grass yield,fresh-dry ratio,leaf-stem ratio,plant height and agronomic performance of different alfalfa cultivars were estimated using grey relational analysis.And traits and nutritional qualities including neutral detergent fiber（NDF）,acid detergent fiber（ADF）and crude protein（CP）,were estimated as well.The relationship between relative feeding value（RFV）and different alfalfa varieties were constructed respectively.The results showed that Zhongmu No.3 alfalfa perform well on high yield and crude protein cotent,Zhongmu No.6 showed a high fresh to dry ratio.SR4030 alfalfa showed a high leaf to stemratio.WL656 HQ alfalfa showed a high plant height.Algonquin alfalfa showed the lowest ADF and NDF content,and the highest RFV.The weight of different biological index in the grey correlation analysis were ordered as CP〉ADF〉HL〉F/D〉DM〉NDF〉L/S〉FW.Zhongmu No.3,Algonquin,Zhongmu No.2,SR4030,Wudi alfalfa varieties had better performance in southwest of Shandong province.