新疆北疆绿洲区4个紫花苜蓿品种生产性能比较

摘要

The experiment was conducted in order to compare the production performance of four alfalfa (Medicago sativa) varieties in oasis region in four continuous years from 2004 to 2007.The result showed that the average growth rate (AGR) of WL-323 was faster than Algonquin, their AGR showed the character as slow-quick-slow, Pandus and Golden Queen had the greatest AGR in three years; and in the third year, AGR of Pandus was the quickest in all varieties. Total forage yield for all the varieties during the four years had significant difference(P＜0.01),which ranked as Pandus>GoldeQueen>Algonquin>WL-323. The forage yield decreased rapidly in the fourth year; Pandus had the highest crude protein content. The comprehensive evaluation showed that Pandus had best performance in all varieties, and could be preferably considered in introduction in oasis region.%对4个紫花苜蓿Medicago sativa品种进行连续4年的生产性能比较试验.结果表明:WL-323生长速度比阿尔冈金快,二者均表现出慢-快-慢的生长特点;胖多和金皇后3年中生长速度逐年加快,第3年胖多在所有品种中生长速度最快.4个品种4年总产草量均差异极显著(P＜0.01),4年总产草量由高到低排列的混播组合为:胖多＞金皇后＞阿尔冈金＞WL-323.各品种在生长第4年产草量迅速下降,胖多粗蛋白含量最高.对4个品种综合评价后得出,胖多生产性能最佳,绿洲区进行苜蓿引种时可以优先考虑.