紫花苜蓿国家审定品种的产量、再生性、秋眠性及持久性测定分析

测定了33个中国紫花苜蓿国家审定品种的秋眠性、再生性、持久性和产量。结果表明:33个品种中除新疆大叶属于秋眠类型品种,其余品种均为半秋眠类型;供试品种中新疆大叶、甘农3号、晋南苜蓿、中苜1号、关中苜蓿、龙牧801和公农2号属于快速生长类型,内蒙准格尔、河西、草原1号和中兰1号属于慢速生长类型,其余各品种均为中速生长类型;中国紫花苜蓿国家审定品种中高产类型较少,仅占15.2%,中低产类型占大多数;各品种的持久性差异不大,均属于持久性强的类型。建议今后要在我国中南地区增加半秋眠、秋眠类型苜蓿品种的培育,在北方地区加强再生性的选择,培育持久性强的高产紫花苜蓿品种。

Regrowth, fall dormancy and persistence of alfalfa varieties released by Chinese Forage Variety Registration Commission

Study on the yield,regrowth,fall dormancy and persistence of Chinese alfalfa varieties approved by Chinese Forage Variety Registration Commission was carried out and the results indicated that most of them were dormancy types and very few of them were semi-dormancy types.In terms of growth features,most of them were mid-slow and slow growth types and very few of them were rapid growth types.Meanwhile,most of them were mid-yield types and very few of them were high-yield types.However,as for persistence,most of them were strong persistence types.Based on the research results,it could be suggested that semi-dormancy and dormancy varieties should be bred in southern China,and high yield,rapid regrowth and strong persistence varieties should be bred in Northern China.