百脉根早熟品系农艺性状初报  

Initial report on agronomic characters of premature strain of Lotus corniculatus L.

作　　者：闫向忠[1] 曹致中[1] 冯玉兰[2] 王敬龙[1] 

机构地区：[1]甘肃农业大学草业学院,甘肃兰州730070 [2]西北民族大学生命科学与工程学院,甘肃兰州730030

出　　处：《甘肃农业大学学报》2007年第4期92-96,共5页Journal of Gansu Agricultural University

基　　金：国家科技部"奶业重大关键技术研究与产业化技术集成示范"项目(2002BA518A03).

摘　　要：对里奥、迈瑞伯和百脉根早熟品系(源于迈瑞伯)在甘肃景泰的生长状况进行了观察,并对3个品种的物候期、产草量、越冬率等进行了比较.结果表明:早熟品系较其他2个品种物候期明显提前,生育天数明显缩短.早熟品系年均鲜、干草产量分别达42.593、10.553 t/hm2,迈瑞伯分别为29.490、7.562 t/hm2,早熟品系干、鲜草产量极显著高于迈瑞伯;里奥的干草产量为9.604 t/hm2,极显著低于早熟品系.试验结果还表明,早熟品系的生长速度及越冬率均优于迈瑞伯,其在景泰地区的生长表现良好.According to growth performances in recent years of two cultivars ‘Leo＇ ,‘Mirabel＇ and the premature strain（selected and bred from the cultivar‘Mirabel＇） of the forage Lotus corniculatus L. grown in Jingtai County in Gansu Province, the agronomic characters such as phenological periods, forage yields and winter-survival rates of the three cultivars or strains were compared and analyzed in this paper. The results showed that the premature strain of Lotus corniculatus L. was obviously previous to other cultivars in phenology period,and the growth and development days of the premature strain was significantlly shorten. The yields of green grass and hay of the premature strain reached 42. 593 t/hm^2 and 10. 553 t/hm^2 respec-tively,and was significantly higher than that of the eultivar＇Mirabel＇ （29. 490 t/hm^2 ,7. 562 t/hm^2 ,respectively） and yet the hay yield of the cultivar ‘Leo＇ was 9. 604 t/hm^2 ,significantly lower than that of the premature strain. In addition,the premature strain also displayed higher average growth speed and wintersurvival rate by comparation with ‘Mirabel’ ,and its growth performaee was well in Jingtai County.

关 键 词：百脉根 早熟品系 物候期 产量 农艺性状 

分 类 号：S541.6[农业科学—作物学]