阿克苏白花草木樨草产量性状和适应性评价  

Evaluation of characteristics contributing to hay yield and adaptability of Aksu white sweet clover

作　　者：陈立强[1] 边艳霞[2] 马春晖[3] 

机构地区：[1]新疆生产建设兵团塔里木畜牧科技重点实验室塔里木大学动物科学学院,新疆阿拉尔843300 [2]塔里木大学后勤管理处,新疆阿拉尔843300 [3]石河子大学动物科技学院,新疆石河子832000

出　　处：《草业科学》2016年第12期2526-2532,共7页Pratacultural Science

基　　金：新疆生产建设兵团塔里木畜牧科技重点实验室开放课题(HS201405);塔里木大学校长基金项目(TDZKQN201502);国家牧草产业技术体系塔里木综合试验站(CARS-35)

摘　　要：以塔里木大学动物科学学院校园内试验站(地处新疆阿拉尔市,40°54′21′′N,81°30′20″E)为试验点,以4份栽培和4份野生草木樨(Melilotus suaveolens)种质资源为对照,对阿克苏白花草木樨(M.albus)品系的草产量性状和适应性进行了分析和评价。结果表明,阿克苏白花草木樨出苗后64d进入现蕾期,75d进入初花期,生育天数较短;阿克苏白花草木樨的干草产量为5 874.23kg·hm^(-2),较对照增产18.76%~67.20%;株高为125.27cm,鲜干比为4.23,均优于对照,草产量性状较好;叶片保水率为65.00%,越夏率为99.00%,对阿克苏地区高温和干旱的气候条件具有较强的适应性;综合性能排名第一,具有转化为野生栽培品种的潜力。Characteristics contributing to hay yield and adaptability of Aksu white sweet clover（Melilotus albus）were analysed and compared among four Melilotus cultivars and four wild Melilotus germplasm resources.The experiment was conducted at the campus experimental station of the Animal Science College,Tarim University,located in Alar,Xinjiang（40°54′21″N,81°30′20″E）.The results showed that the squaring and initial bloom stage of Aksu white sweet clover was on the 64 th and 75 th day after emergence,respectively.The number of growth and development days was very short and its hay yield was 5 874.23kg·hm^（-2）,which was18.76%～67.20% greater than that of the control group.Plant height and the fresh-dry ratio were 125.27 cm and 4.23,respectively,which were greater than those of the control group,indicating better hay yield characteristics.Its water-holding and summer survival rate was 65.00%and 99.00%,respectively,indicating good adaptability to the megathermal and arid climate of the Aksu area.The comprehensive performance score ranked first among the tested accessions,which demonstrated it had potential to be transformed into wild varieties.

关 键 词：阿克苏白花草木樨 品系 草产量性状 层次分析法 

分 类 号：S551.6[农业科学—作物学]