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对从草原 2号苜蓿群体中经多年选择育成的一个杂花苜蓿新品系的生物学性状、农艺性状、生长动态及地上和地下生物量分布及各物候期营养物质含量进行的研究结果表明 :此品系群体内杂种优势显著 ,杂花率高达 71.96 % ,干草和种子产量高 ,品质好 ,初花期植株粗蛋白质含量18.86 % ;生育期 12 0d左右 ,在内蒙古中部和西部地区生长良好 ,抗旱、抗寒性强 ,是一个适于北方干旱、半干旱地区种植的优良苜蓿新品系。
The results of biological characteristics, agronomic traits, growth dynamics and above-ground and underground biomass distribution and nutrient content of each phenophase of a new alfalfa variety bred from many year-old selection of alfalfa population in Prairie No.2 showed that: The heterosis was significant in the population. The rate of miscellaneous flowers was as high as 71.96%, the yield of hay and seeds was high and the quality was good. The crude protein content of early flowering plants was 18.86%. The growth period was about 12 days, and grew well in central and western Inner Mongolia. Cold strong, is a suitable for the northern arid and semi-arid areas of good new alfalfa lines.