王草新品种的生物学特性与营养价值  

Biological Character and Nutritional Value of The New Breed of Pannisetum Pureum

作　　者：王凭青[1] 方向林[1] 赵虎成[1] 朱明君[2] 黄真理[3] 

机构地区：[1]重庆大学生物工程学院,重庆400044 [2]重庆大学科研处,重庆400044 [3]国务院三峡办,北京100858

出　　处：《重庆大学学报（自然科学版）》2001年第5期96-97,110,共3页Journal of Chongqing University

基　　金：国务院三峡办资助项目 (SX[2 0 0 0 ] -0 0 2 );教育部"春晖计划"资助项目 (教外司留 [1999] 95号 )

摘　　要：培育大量的适应不同地区和不同气候条件栽培的优质牧草新品种。用美洲狼尾草与非洲象草进行远源杂交 ,选育出了适应亚热带气候条件栽培的热带牧草王草新品种 ,并大田观察其生物学特性。研究结果表明 :新品种生长旺盛、产草量高、根系发达保持水土能力强 ,具有良好的适应性与抗逆性。在我国南方亚热带霜冻小于 30d的地区可安全越冬。营养成分分析表明 ,其蛋白质含量和干物质含量明显高于同类热带牧草品种。因此 ,从王草新品种的产量、营养成分、抗逆性能综合来看 ,是一种极具开发价值的优质牧草新品种。The new breed of pennisetum pureum tropical forage grass has been cultured which is accustomed to the sub tropic climate condition via introduction and choosing of hybridization. The new breed is not only excellent in growing property and mass production, which is about one time higher than the same kind of tropical forage grass, but also has a strong adaptability. It has a good anti adversity fastness and can live through the winter in the sub tropic region of China. It has a strong ability of keeping the soil and water on the earth. It is indicated from the analysis of nutritional ingredient that the content of protein and dry substance is much higher than the same kind of tropical forage grass. It is a new kind of high quality forage grass which has very high exploitable value when we consider the production, nutrition, ingredients, fastness of pennistetum pureum.

关 键 词：生物学特性 营养价值 远源杂交 定向培育 牧草 

分 类 号：S543.9[农业科学—作物学]