| 野生割手密种质生产性能评价 |
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| 引用本文： | 常丹,鄢家俊,白史且,梁绪振.野生割手密种质生产性能评价[J].中国农学通报,2012,28(3):206-212. |
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| 作者姓名： | 常丹 鄢家俊 白史且 梁绪振 |
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| 作者单位： | 四川省草原科学研究院,成都,611731 |
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| 基金项目： | 国家牧草产业技术体系项目（CARS-35）; 四川省“十二五”饲草育种攻关项目 |
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| 摘 要： | 为野生割手密资源的合理利用以及中国草本能源植物的开发与利用提供参考,以21份野生割手密种质为材料,对21份野生割手密种质的生产性能进行评价。结果表明:所有供试材料均能完成整个生长发育周期,材料SAGS08081生育期最长,长达167天,材料SAGS08068生育期最短,为127天,前后相差达40天;供试的21份割手密种质材料生长高度以及速度变化规律基本一致,拔节期至开花期生长速度最快;生产性能指标中,变异幅度较大的是单株干重和分蘖数,变异系数分别为52.39%和46.30%;变异幅度最小的指标是茎节数,变异系数仅为14.99%;不同割手密材料单株产量差异较大,单株鲜草产量为98.30～1238.90g,平均单株鲜重为481.27g,单株干草产量为45.39～335.62g,平均单株干重为165.51g;聚类分析可将所有材料分为两大类,Ⅰ类材料的各项指标明显优于Ⅱ类材料。
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| 关 键 词： | 割手密 物候期 生长速度 生产性能 产量 |
| 收稿时间： | 2011/6/20 0:00:00 |
| 修稿时间： | 2011/10/27 0:00:00 |
Evaluation of Production Performance for Wild Saccharum spontaneum L. Germplasm |
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| Chang Dan
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Yan Jiajun
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Bai Shiqie
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Liang Xuzhen.Evaluation of Production Performance for Wild Saccharum spontaneum L. Germplasm[J].Chinese Agricultural Science Bulletin,2012,28(3):206-212. |
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| Authors: | Chang Dan Yan Jiajun Bai Shiqie Liang Xuzhen |
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| Institution: | Chang Dan,Yan Jiajun,Bai Shiqie,Liang Xuzhen(Sichuan Academy of Grassland Sciences,Chengdu 611731) |
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| Abstract: | Saccharum spontaneum is a common wild plant resource widely spread in China.In order to develop and utilize Saccharum spontaneum as a herbal energy plant,twenty-one wild accessions were assessed by production performance.The results were as follow：all accessions could finish a complete growth period.Accession SAGS08081 ＇ s growth period lasted 167 days as the longest one,whereas,accession SAGS08068 had the shortest growth period that was 127 days.Growth height and speed of twenty-one accessions varied almost the same,from jointing date to heading date,the speed of growth was the fastest.Among all production indexes,variation of individual dry yield and tiller number was the most significant,coefficient of variation was 52.39% and 46.30%,respectively.And number of internodes had the smallest coefficient of variation was only 14.99%.Yield of individuals was obviously different.Individual fresh yield ranged from 98.30 g to 1238.90 g,with an average 481.27 g.The dry yield was 45.39-335.62 g with an average 165.51 g.Cluster analysis divided all accessions into two groups,and accessions in group I were superior to group II at all indexes. |
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| Keywords: | Saccharum spontaneum L phenophase growth speed production performance yield |
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