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| 云南地区扁穗雀麦繁殖对策研究 | |
| 引用本文： | 区力松,王晓云,曹清国,杨春梅,毕玉芬.云南地区扁穗雀麦繁殖对策研究[J].贵州农业科学,2008,36(2):135-137. |
| 作者姓名： | 区力松 王晓云 曹清国 杨春梅 毕玉芬 |
| 作者单位： | 1. 云南省罗平县板桥镇农技站,云南,罗平,655800 2. 南京农业大学,江苏,南京,210095 3. 内蒙古呼伦贝尔牙克石市乌尔其汉镇畜牧综合站,内蒙古,牙克石,022159 4. 云南省寻甸县功山镇中学,云南,寻甸,655208 5. 云南农业大学,云南,昆明,650201 |
| 摘 要： | 对云南野生种牧草扁穗雀麦的繁殖对策进行了初步研究,结果表明:有性繁殖和营养繁殖效果都很好,种子产量可以达到270.00 g/m2,且种子发芽率在无任何处理的情况下也能达到80%以上,总繁殖效力平均为34.24%。扁穗雀麦有性繁殖苗期生长缓慢,生长速率为0.361 cm/d,但分蘖以后生长速率加大,抽穗开花期达最大;扁穗雀麦营养繁殖成活率较高,为89.7%,生长速度比有性繁殖快,并且随植株长大,生长速率呈下降趋势;种子产量随地上生物量的增加而增加。 |
| 关 键 词： | 扁穗雀麦 繁殖效力 繁殖对策 |
| 文章编号： | 1001-3601(2008)02-0108-0135-03 |
| 修稿时间： | 2007年5月18日 |
Study on Reproduction Methods of Wild Flat Bromegrass In Yunnan Province |
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| OU Lisong,WANG Xiaoyun,CAO Qingguo,YANG Chunmei,BI Yufen.Study on Reproduction Methods of Wild Flat Bromegrass In Yunnan Province[J].Guizhou Agricultural Sciences,2008,36(2):135-137. | |
| Authors: | OU Lisong WANG Xiaoyun CAO Qingguo YANG Chunmei BI Yufen |
| Abstract: | The results from studying two reproduction methods of wild flat bromegrass show that the seed yield,germination rate(without any treatment) and average total reproduction efficiency of asexual and sexual reproduction method is 270.00 g/m2,>80% and 34.24% respectively.The growth speed of flat bromegrass by sexual reproduction is slow(0.361 cm/d) at seedling stage,but the growth speed raises after tillage and the growth speed is up to maximum at flower stage.The survival rate of flat bromegrass by asexual reproduction is up to 89.7% and the growth speed of flat bromegrass by asexual reproduction is quicker than that by sexual reproduction.The growth speed of flat bromegrass by asexual reproduction drops with plant growth and its seed yield increases with biomass increase of the aerial part. |
| Keywords: | flat bromegrass reproduction efficiency reproduction method |
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