上海地区高产优质紫花苜蓿品种的筛选

2001-2003年在上海交通大学农学院农场和实验室分别进行了53个国内外紫花苜蓿Medicago sativa品种的引种比较试验,以期为上海的牧草生产提供高产、优质的紫花苜蓿品种.结果表明,比较适合上海夏季高温潮湿的环境条件,干草和粗蛋白产量相对较高的紫花苜蓿品种主要有:Defi,其秋眠级数(FD)为5,试验中编号为A43(下文用"Defi(FD5,A43)"方式表示),Arriba(FD7,A61),Lobo(FD6,A62和A10),Abilene Z(FD5,A53),Ameri Graze 702(FD7,A59)和Durango(FD5,A51)等.这些品种在播种后19个月内7次收获的鲜草产量超过110 t/hm2,折合干物质产量超过26 t/hm2,折合粗蛋白产量超过6 t/hm2.生产者也可以根据市场供应的品种和价格情况,参考试验结果,选用在产量和质量上与上述推荐品种相近的其他品种.

Evaluation of Alfalfa Cultivars for High Forage Yield and Good Quality in Shanghai

domestic and foreign alfalfa (Medicago sativa L.) cultivars were evaluated in lab and field experiments at Agricultural and Biology College of Shanghai Jiaotong University from 2001 to 2003, to screen the top varieties of high forage grass yield and crude protein level for production in Shanghai. The results showed that fall dormancy (FD) for Defi is 5, whose test entry is A43; abbreviated as "FD5, A43" in the following), Arriba (FD7, A61), Lubo (FD 6, A62 or A10), Abilene+Z (FD 5, A53), Ameri Graze 702 (FD 7, A59) and Durango(FD5, A51)performed best tolerance to high temperature and waterlogging with more than 110 t/hm~2 total fresh forage yield, approximately 26 t/hm~2 dry matter yield, and 6 t/hm~2 crude protein yields of 7 harvestings in 19 months after seeding. Growers could also refer to the results in this study to select other cultivars similar to the recommended ones above in grass and crude protein yield according to the cultivars availability and price in current market.