“中苎1号”和“中苎2号”苎麻营养价值的初步评价  

Preliminary Evaluation on Nutritional Value for Ramie [Boehmeria nivea( L.) Gaud.] Zhongzhu No.1 and Zhongzhu No.2

作　　者：朱涛涛[1] 喻春明[1] 王延周[1] 陈继康[1] 熊和平[1] 陈平[1] 谭龙涛[1] 卢凌霄[1] 郑建树[1] 

机构地区：[1]中国农业科学院麻类研究所,湖南长沙410205

出　　处：《中国麻业科学》2014年第3期113-121,共9页Plant Fiber Sciences in China

基　　金：国家麻类产业技术体系建设专项苎麻育种岗位经费(项目编号:CARS-19);湖南科技计划项目"洞庭湖苎麻高效种植与养殖关键技术及示范"(项目编号:2013NK3125)

摘　　要：本研究的目的是对"中苎1号"和"中苎2号"苎麻的营养价值进行初步评价,为苎麻作牧草利用提供参考。试验结果表明,苎麻的营养品质优于黑麦草和象草,和苜蓿相近;80cm收割高度下苎麻的叶、茎粗蛋白含量和叶茎比均显著高于100cm和120cm(P<0.05)的收割高度,叶、茎粗纤维含量则显著低于100cm和120cm(P<0.05),同时干物质产量和粗蛋白产量均显著高于60cm(P<0.05),生长时间相对100cm和120cm分别缩短了8d和13d。此外,"中苎1号"在80cm收割高度下的粗蛋白日增产速率显著高于其他收割高度(P<0.05)。综上可知,"中苎1号"和"中苎2号"可以做牧草开发利用。综合考虑干物质产量、营养品质、生产时间及成本,"中苎1号"和"中苎2号"在"二麻"高温期间整株收获作为反刍动物的饲草开发利用时,80cm左右是最佳的收割高度。The main purpose of this paper was to evaluate the nutritional value of two ramie varieties Zhongzhu No. 1 and Zhongzhu No. 2 and provide a reference for ramie as a forage crop. The results showed that the nutritional quality of ramie [ Boehmeria nivea （ L. ） Gaud. ] was better than that of pe- rennial ryegrass （Lolium perenne L. ） and Pennisetum purpureum Schum. Besides, the nutritional quality of ramie was comparable to that found in alfalfa （ ＂o sativa L. ） . The crude protein content and leaf- .stem ratio of ramie at 80 cm reaping height were significantly higher （P 〈0. 05） than 100 cm and 120 era. The crude fiber content at 80 em reaping height was significantly lower （P 〈0. 05） than 100 em and 120 era. DM yield and gross protein yield at 80 cm were obviously higher than 60 cm （P 〈0. 05） . The growth period at 80 em height was 8 and 13 days less than 100 cm and 120 cm respectively, In addi-tion, the daily growth rate of crude protein of Zhongzhu No. 1 at 80cm reaping height was significantly higher （P 〈 0. 05） than other reaping heights. Based on the results, Zhongzhu No. 1 and Zhongzhu No. 2 could be used as forage crop, and in their second growth season, ramie should be reaped at about 80 cm height as ruminant feed.

关 键 词：苎麻 收割高度 产量 营养价值 

分 类 号：S563.1[农业科学—作物学]