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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (8): 6-11.

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

德钦苜蓿品比试验报告

马向丽 李立 毕玉芬 赵雁 邵辰光 墨继光   

  • 收稿日期:2011-10-19 修回日期:2011-11-07 出版日期:2012-03-15 发布日期:2012-03-15
  • 基金资助:

    “十二五”国家科技支撑计划项目子课题“南方优质饲草高效生产加工利用关键技术研究与集成示范;国家自然科学基金项目“云南野生和逸生苜蓿资源特异耐受性机理的研究”

A Report of Studies on Deqin Alfalfa Variety Comparative Trial

  • Received:2011-10-19 Revised:2011-11-07 Online:2012-03-15 Published:2012-03-15

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756

摘要：

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。

关键词: 多要素, 多要素, 回归积分, 中稻, 气象产量, 自贡

Abstract:

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 suvival rate of Deqin alfalfa was 95.3%, which was singnificantly different from that of Algonguin（77.4%）(P<0.5). The average plant height of Deqin and Algonguin alfalfa were 38.2cm and 27.1cm respectively, the difference between those was especially singnificant(P<0.1). The value of Stem wt to Leaf wt of Deqin alfalfa was lower than that of Algonguin in 2004 (P<0.5), moreover, its values in 2005 and 2006 were obviously lower than those of latter (P<0.1). The yield results indicated that the fresh yields and dry matter yields of Deqin alfalfa were singnificantly higher than those of Algonguin (P<0.1). 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.