| 直穗鹅观草引种试验 |
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| 作者单位： | 内蒙古林西县草原工作站 内蒙古林西025250(冯志茹，刘淑华，赵淑芬)，中国农业科学院草原研究所 内蒙古呼和浩特010010(孙启忠) |
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| 摘 要： | 与野生直穗鹅观草相比,经过十多年引种驯化的直穗鹅观草表现出了较强的适应性和较好的生产性能,在林西县生育期约100 d,平均干草产量可达4 753.3 kg/hm2,生长2年和生长3年的种子产量平均达724.5 kg/hm2,干草产量和种子产量分别比野生直穗鹅观草增加17.0%和23.4%,干草产量与垂穗披碱草(4 625.8 kg/hm2)和无芒雀麦(4 788.2 kg/hm2)相近,但种子产量明显低于垂穗披碱草(1 312.5 kg/hm2)和无芒雀麦(781.7 kg/hm2)。
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| 关 键 词： | 直穗鹅观草 引种试验 禾草 |
Introduction Experiment of Roegneria turczaninovii(Drob.)Nevski |
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| Authors: | FENG Zhi-ru LIU Shu-hua ZHAO Shu-fen SUN qi-zhong |
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| Institution: | FENG Zhi-ru1,LIU Shu-hua1,ZHAO Shu-fen1,SUN qi-zhong2 |
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| Abstract: | After domestication for 10 years,Roegneria turczaninovii(Drob.)Nevski behaved greater adaptability and better production performance compared to wild species.In Linxi county,the bearing stage of Roegneria turczaninovii(Drob.)Nevski was about 100 days.The average hay yield was 4 753.3 kg/hm2 and the average seed yield of the second year and third year was 724.5 kg/hm2.The hay yield and seed yield increased 17.0% and 23.4% than wild species respectively.The hay yield of Roegneria turczaninovii(Drob.)Nevski was similar to Elymus nutans Griseb.(4 625.8 kg/hm2)and Bromus inermis Leyss.(4 788.2 kg/hm2),but the seed yield was evidently lower than Elymus nutans Griseb.(1 312.5 kg/hm2)and Bromus inermis Leyss.(781.7 kg/hm2). |
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| Keywords: | Roegneria turczaninovii(Drob )Nevski Introduction experiment Grass |
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