Adaptability of chamaecrista rotundifolia Minyin 2 | 闽引2号圆叶决明的适应性研究
2012
Chen Zhitong, Fujian Academy of Agricultural Sciences, Fuzhou (China), Agricultural Ecology Institute, Fujian Engineering and Technology Research Center for Hilly Prataculture | Luo Xuhui, Fujian Academy of Agricultural Sciences, Fuzhou (China), Agricultural Ecology Institute, Fujian Engineering and Technology Research Center for Hilly Prataculture | Li Chunyan, Fujian Academy of Agricultural Sciences, Fuzhou (China), Agricultural Ecology Institute, Fujian Engineering and Technology Research Center for Hilly Prataculture
chinois. 为了筛选出更优质的亚热带豆科牧草，从澳大利亚牧草种质资源中心（ATFGRC）引进的41个决明属牧草中筛选出闽引2号圆叶决明（Chamaecrista rotundifolia‘Minyin 2’，原品系号ATF3248），并于2011年通过全国草品种审定委员会审定。1997-2010年进行品种比较试验、区域试验和生产试验，结果表明：闽引2号圆叶决明系多年生直立型热带豆科牧草，干草产量达12000～15000kg/hm2，比对照品种闽引圆叶决明（C.rotundifolia‘Mi-nyin’）增产27.7%以上，种子产量200～400kg/hm2，比对照品种增产25%以上（P〈0.05），盛花期植株含粗蛋白质16.9%，适宜在我国热带、亚热带红壤山地种植。
Afficher plus [+] Moins [-]anglais. In order to obtain high quality subtropical legume forage, 41 Chamaecrista spp.accessions were introduced from Australian Tropical Forage Genetic Resource Centre (ATFGRC) in 1996. Chamaecrista rotundifolia ‘Minyin 2’ (ATF3248) was selected and registered by the Chinese Herbage Cultivar Registration Board (CHCRB) in 2011. Variety comparison trial, regional and field trials were conducted from 1997 to 2010. Results showed that the hay yield of Minyin 2 was 12000 to 15000 kg/hm2 and the seed yield was 200 to 400 kg/hm2 which were 27.7% and 25% higher than those of cultivar Minyin, respectively. Crude protein content in Minyin 2 harvested at full bloom stage was 16.9%. Therefore, Minyin 2 was an important perennia1 tropical legume and could be widely planted in tropical and subtropical region of China due to its good performance on hilly red soils.
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