生育期和品种对紫花苜蓿产量及品质的影响  

Effects of Growth Stage and Variety on Yield and Quality of Alfalfa

作　　者：张晓娜[1] 宋书红[1] 林艳艳[1] 陈志飞[1] 张莹[1] 李广艳[1] 杨云贵[1] ZHANG Xiao-na SONG Shu-hong LIN Yan-yan CHEN Zhi-fei ZHANG Ying LI Guang-yan YANG Yun-gui(College of Animal Science and Technology, Northwest A＆F University, Yangling, Shaanxi Province 712100, China)

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《草地学报》2016年第3期676-681,共6页Acta Agrestia Sinica

基　　金：国家牧草产业技术体系"优质牧草产品标准化生产关键技术"(CASR-35-01A);国家燕麦产业技术体系"燕麦加工利用"(CARS-08-D1)资助

摘　　要：为了获得最佳的紫花苜蓿(Medicago sativa)品种和刈割期,分别对‘关中苜蓿’、‘阿尔冈金’、‘金皇后’在现蕾期、初花期、盛花期、结荚期和成熟期进行刈割,了解不同苜蓿品种在各生育期的产量及营养特性。结果表明:3个品种中,‘金皇后’的粗蛋白、粗灰分、相对饲用价值含量最高,分别为16.86%DM,7.97%DM和106.22%DM;‘金皇后’的中性洗涤纤维、酸性洗涤纤维含量最低,分别为51.08%DM和41.04%DM。‘金皇后’在现蕾期,粗蛋白、粗灰分、相对饲用价值含量最高,分别为18.99%DM,9.07%DM和127.15%DM,中性洗涤纤维、酸性洗涤纤维含量最低,分别为44.98%DM和35.78%DM。综上所述,3个苜蓿品种中,‘金皇后’的产量及营养价值最高,品质最好,现蕾期是最佳的刈割时期。In order to get the best alfalfa varieties and harvest period, ＇Guanzhong alfalfa＇, ＇Algonquin＇, ‘Gold empress’ were cutted at budding stage, early blooming, full booming, pod-setting stage and maturing stage, respectively, to understand yield and nutritional characteristics of different alfalfa varieties at each growth period. Among three varieties, crude protein, crude ash and relative feed value（RFV） contents of ＇Gold empress＇ were the highest, reached 16.86%DM, 7.97MDM and 106.22%DM, respectively. Neutral detergent fiber （NDF） and acid detergent fiber （ADF） contents of ‘ Gold empress ’ were the lowest, reached 51.08%DM and 41.04%DM, respectively. Crude protein, crude ash and RFV contents of ＇Gold empress＇ were the highest, reached 18.99GDM, 9.07GDM and 127.15%DM, NDF and ADF contents lowest, reached 44.98% DM and 35.78%DM, at budding stage. In summary, yield and nutritional value of ＇Gold （empress＇ were the highest, which made it the best in quality, and budding stage was the best stage of cutting.

关 键 词：生育期 品种 紫花苜蓿 产量 品质 

分 类 号：S541.9[农业科学—作物学]