不同红三叶品种在兰州地区的适应性评价  

Adaptability Evaluations on Different Red Clover Varieties in Lanzhou

作　　者：宋超[1] 靳晓丽[1] 田新会[1] 杜文华[1] 

机构地区：[1]甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续研究中心,甘肃兰州730070

出　　处：《草地学报》2012年第4期657-661,共5页Acta Agrestia Sinica

基　　金：公益性行业(农业)科研专项(201003019);甘肃省科技支撑计划((1104NKCA089);草业生态系统教育部重点实验室(甘肃农业大学)开放课题(CYZS-2011-01)资助

摘　　要：以岷山红三叶(Trifolium pratense‘Minshan’)为对照,从物候期、分枝数、株高、草产量、种子产量和营养成分等方面对国外引进的6个红三叶品种进行综合评价,以期筛选出适宜于兰州地区种植的优良红三叶品种,或为红三叶育种提供优异种质资源。结果表明:6个红三叶品种中,除Nzead外,其余均可在兰州地区种植。Sensation的单株鲜草产量、分枝数、单株种子产量优于其他品种;Astred的鲜干比、茎叶比以及粗蛋白含量最高;Cobbity的株高和单株干草产量最高;Colenso的粗脂肪含量最高,粗纤维含量最低;Renegade的单株鲜草产量、分枝数以及粗蛋白含量较低。对各参试品种的综合评价得出,Sensation的综合性状最优,其次为Colenso,Cobbity和Astred,而Renegade最差。Phenological phase,the number of shoots per plant,plant height,hay yield,seed yield and nutrition value of six introduced red clover varieties were evaluated comprehensively in order to select excellent red clover resources or the most suitable cultivated variety in Lanzhou.The local variety ＇Minshan＇ red clover was selected as a control.Results showed that six varieties,except for ＇Nzead＇,could be cultivated in Lanzhou.＇Sensation＇ variety had the highest fresh weight,number of branches and seed yield per plant.＇Astred＇ variety had the highest leaf/stem ratio,fresh/dry ratio and crude protein content.＇Cobbity＇ had the highest plant height and hay yield per plant.＇Colenso＇ had the highest crude fat and the lowest crude fiber content.＇Renegade＇ had minimum fresh weight and number of branches per plant,and crude protein content.The comprehensive evaluation of five varieties demonstrated that ＇Sensation＇ was the best variety,followed by ＇Colenso＇,＇Cobbity＇ and ＇Astred＇,＇Renegade＇ was the poorest one.

关 键 词：红三叶 物候期 农艺学性状 营养成分 适应性评价 

分 类 号：S322.1[农业科学—作物遗传育种] S541.2[农业科学—农艺学]