| 直穗鹅观草生物学特性及生产性能研究 |
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| 引用本文： | 孙启忠,韩建国,王赞文,赵淑芬,冯志茹.直穗鹅观草生物学特性及生产性能研究[J].牧草与饲料,2007,1(2):19-22. |
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| 作者姓名： | 孙启忠 韩建国 王赞文 赵淑芬 冯志茹 |
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| 作者单位： | [1]中国农业科学院草原研究所,呼和浩特010010 [2]中国农业大学草地研究所,北京100094 [3]内蒙古林西县草原工作站,内蒙古林西025250 |
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| 基金项目： | 国家“十一五”科技支撑项目（2006BAD16B03） |
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| 摘 要： | 在我国农牧交错区东段引种直穗鹅观草，播种当年生长缓慢，生育期达到拔节期，产草量较低；生长2年可顺利完成生育期开花结实，生长速度和生物量明显增加，生育期为100d，成熟株高达120～125cm。开花期鲜草及千草产量达到24048．8和9048．1kg／hm^2，均高于对照牧草，2年种子产量平均为724．4kg／hm^2。叶量丰富，孕穗期、开花期、乳熟期和成熟期的茎叶比分别为1／1．27、1／0．85、1／0．75、1／0．65，叶量高于对照牧草。再生性较好，不同时期刈割以开花期再生草产量最高。
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| 关 键 词： | 直穗鹅观草 生产性能 禾草 |
| 修稿时间： | 2006-12-27 |
Biological Character and Production Capacity of Roegneria Turczaninovii |
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| Authors: | SUN Qi-zhong HAN Jian-guo WANG Yun-wen ZHAO Shu-fen FENG Zhi-ru |
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| Institution: | 1. Grassland Research Institute of Chinese Academy of Agricultural Sciences, Hohhot 010010, China; 2. Institute of Grassland Science CA U, Beijing 100094, China; 3.Inner Mongolia Linxi County Grassland Station, Linxi 025250, China |
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| Abstract: | In the east of agriculture - animal husbandry region of China, Roegneria turczaninovii was introduced, It growed slowly in the first year, the grass yield was lower till elongation stage, it could seed in the second year. the speed of its growth and yield improved significantly, the growth period was about 100 days. the yield of fresh grass and hay could reach to 24 048.8 kg/ha and 9 048.1 kg/ha respectively in floresence, and higher than contrast, the average yield of two years see was 724.4 kg/ha, leaves were rich, during booting stage, blooming stage,milk stage and maturation phase, the ratio of stem and leaf was 1/1.27,1/0.85,1/0.75 and 1/0.65, and higher thancontrast respectively. Regenerate capacity was strong, when moved in different growth phase; the regenerate yieldwas highest in blooming stage. |
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| Keywords: | Roegneria turczaninovii Production capacity Grass |
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