德钦苜蓿品比试验报告

以阿尔冈金为对照品种，对德钦苜蓿进行了品种比较试验。结果表明：德钦苜蓿生育天数为233～246天。在3个试验点种植，越冬率平均为95.3%，与对照品种阿尔冈金（均值77.4%）差异显著（P<0.05）。德钦苜蓿和阿尔冈金三年3个试验点的平均株高分别为38.2 cm和27.1 cm，差异极显著（P<0.01）。其生长速度也与阿尔冈金差异极显著（P<0.01）。2004年三个试验点德钦苜蓿的茎叶比均显著低于阿尔冈金（P<0.05），2005年、2006年均极显著低于阿尔冈金（P<0.01）。产量测定结果表明，三年各试验点德钦苜蓿鲜草、干草产量均极显著高于阿尔冈金（P<0.01）。营养成分分析表明，德钦苜蓿在初花期和盛花期粗干物质含量分别达25.73%和28.04%，蛋白含量分别达24.50%和19.41%，体外干物质消化率分别为68.03%和66.56%，其营养品质已经达到了1级水平。抗性分析表明，德钦苜蓿能较好地适应高温高湿环境，耐贫瘠。因而从引种的角度看，德钦苜蓿适应性强、高产、优质、适口性好，是一种值得在迪庆州推广种植的优良牧草。

A Report of Studies on Deqin Alfalfa Variety Comparative Trial

Deqin and Algonguin alfalfa varieties were collected and compared in this study.The results showed that the cultivated day of Deqin alfalfa ranged from 233-246 days.Planted in 3 test places,the average winter survival rate of Deqin alfalfa was 95.3%,which was significantly different from that of Algonguin（77.4%）（P0.05）.The average plant height of Deqin and Algonguin alfalfa were 38.2 cm and 27.1 cm respectively,the difference between those was especially significant（P0.01）.The value of Stem wt to Leaf wt of Deqin alfalfa was lower than that of Algonguin in 2004（P0.05）,moreover,its values in 2005 and 2006 were obviously lower than those of latter（P 0.01）.The yield results indicated that the fresh yields and dry matter yields of Deqin alfalfa were significantly higher than those of Algonguin（P 0.01）.Dry matter contents of Deqin alfalfa in early flowering stage and full flowering state were 25.73% and 28.04% respectively,crude protein contents were 24.50% and 19.41% respectively,and IVDMD were 68.03% and 66.56% respectively,which all indicated the nutrition component of Deqin alfalfa was the fist level.The analysis of stress resistance showed that Deqin alfalfa had a strong resistance to high temperature and humidity,nutrient-deficient soil.Considering form the introduction point of view,Deqin alfalfa with a stong adaptability,high yield,good nutrition and palatability,was a kind of excellent forage variety which was worth planting and popularizing in DiqingTibetan Autonomous Prefecture.