22个苜蓿品种在甘肃永登地区的生产适应性评价

以22个苜蓿品种为试验材料,在甘肃永登地区进行生产适应性评价,测定了各品种的产量和品质指标。结果表明:干草总产量最高的是甘农4号(17 537.0kg/hm2),其次为德宝(16 610.8kg/hm2)、甘农5号(16 356.7kg/hm2),陇中苜蓿(10 220.0kg/hm2)最低;平均株高最高为驯鹿(88.1cm),其次为阿尔冈金(84.6cm)、中苜1号(83.7cm),最低的是陇中苜蓿(65.2cm);生长速度较快的是驯鹿(1.39cm/d)、阿尔冈金(1.33cm/d)、中苜1号(1.31cm/d),最慢为陇中苜蓿(0.99cm/d);粗蛋白含量最高的是三得利(18.51%),其次为北极星(18.24%)、驯鹿(17.77%),最低的品种为柏拉图(15.35%);酸性洗涤纤维含量最低为太阳神(33.38%),其次是苜蓿王(33.40%)、皇后(33.58%),最高的是甘农1号(40.04%);中性洗涤纤维含量最低为陇东苜蓿(41.6%),其次是甘农3号(41.9%)、太阳神(42.5%),含量最高的是甘农8号(48.7%);粗灰分含量最高是驯鹿(11.39%),其次是甘农3号(11.29%)、中兰1号(11.17%),含量最低的是皇后(9.64%);粗脂肪含量最高为北极星(2.41%),其次为中苜1号(2.34%)、太阳神(2.33%),含量最低的是甘农1号(1.77%)。综合评价结果表明:供试的22个品种中,甘农4号、德宝、甘农5号、阿尔冈金、陇东苜蓿、皇后、中苜1号品种产草量高、品质好,综合评价较高,具有潜在的推广价值,适宜于在甘肃灌区大面积推广应用。

Evaluation for the productive adaptability of 22 alfalfa varieties in Yongdeng region of Gansu Province

Taking 22 alfalfa varieties with widely cultivation and strong production performance in Gansu as experimental materials,the productive adaptability invovling the yield and quality of different varieties were comprehensively evaluated and compared in Yongdeng region.The results showed that the highest forage pro-duction was Gannong No.4(17 537.0 kg/hm2),followed by Derby (16 610.8 kg/hm2)and Gannong No.5 (16 356.7 kg/hm2),the forage of production of Longdong alfalfawas the lowest(10 220.0 kg/hm2).The alfalfa variety with highest plant height was Reindeer(88.1 cm),followed by Algonquin(84.6 cm)and Zhongmu No.1 (83.7 cm),the height of Longzhong alfalfawas the lowest(65.2 cm).The alfalfa variety with fastest growth speed was Reindeer(1.39 cm/d),followed by Algonquin(1.33 cm/d)and Zhongmu No.1 (1.31 cm/d),the growth speed of Longzhong alfalfawas the slowest(0.99 cm/d).The alfalfa variety with highest crude protein content was Suntory(18.51%),followed by the North star(18.24%)and Reindeer(17.77%),the crude protein content of Plato was the lowest(15.35%).The alfalfa variety with lowest acid detergent fiber content was Sun-god(33.38%),followed by the King of alfalfa(33.40%)and Queen(33.58%),the acid detergent fiber content of Gannong No.1was the highest(40.04%).The alfalfa variety with lowest neutral detergent fiber content was Longdong alfalfa(41.6%),followed by Gannong No.3(41.9%)and Sun-god(42.5%),the neutral detergent fi-ber content of Gannong No.8 was the highest(48.7%).The alfalfa variety with highest crude ash content was Reindeer(1 1 .3 9%),followed by Gannong No.3 (1 1 .2 9%)and Zhonglan No.1 (1 1 .1 7%),the crude ash content of Queen was the lowest(9.64%).The alfalfa variety with highest crude fat content was North star(2.41%), followed by the Zhongmu No.1(2.34%)and Sun-god(2.33%),the crude fat content of Gannong No.1was the lowest(1.77%).The comprehensively evaluation showed that Gannong No.4,Derby,Gannong No.5,Algon-quin,Longdong alfalfa,Queen and Zhongmu No.1 had higher performance of yield and quality in the 22 varieties and these varieties have potential values for application in Gansu irrigation regions.