| 应用灰色关联度分析法综合评价啃食强度对紫穗槐营养价值的影响 |
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| 引用本文： | 郭霞,刘雪云,周志宇,粱坤伦,王瑞. 应用灰色关联度分析法综合评价啃食强度对紫穗槐营养价值的影响[J]. 草业学报, 2012, 21(2): 196-204. DOI: 10.11686/cyxb20120225 |
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| 作者姓名： | 郭霞 刘雪云 周志宇 粱坤伦 王瑞 |
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| 作者单位： | 兰州大学草地农业科技学院,甘肃 兰州 730020 |
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| 基金项目： | 国家重点基础研究发展规划项目(973项目)，国家自然科学基金 |
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| 摘 要： | 应用灰色关联度分析法,对5组人工模拟不同啃食强度,20%,40%,60%,80%,100%(占植株地上部分的比例)下紫穗槐叶、茎,从7个营养指标,粗灰分(Ash)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、可溶性糖(WSC)、粗蛋白质(CP)、磷(P)、钾(K)间的相互关系进行了综合分析, 通过对不同啃食强度处理的关联度比较,探讨啃食强度对紫穗槐营养品质的影响。结果表明,紫穗槐在啃食强度40%时,叶、茎的加权关联度分别为0.781 2和0.651 3,大于其他啃食强度处理,即具有最佳的营养价值。
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| 关 键 词： | 紫穗槐 灰色关联度 啃食强度 营养价值 |
| 收稿时间： | 2010-12-06 |
Applying grey correlative degree analysis to comprehensively evaluate the influence of different defoliation intensities on nutritional value of Amorpha fruticosa |
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| GUO Xia , LIU Xue-yun , ZHOU Zhi-yu , LIANG Kun-lun , WANG Rui. Applying grey correlative degree analysis to comprehensively evaluate the influence of different defoliation intensities on nutritional value of Amorpha fruticosa[J]. Acta Prataculturae Sinica, 2012, 21(2): 196-204. DOI: 10.11686/cyxb20120225 |
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| Authors: | GUO Xia LIU Xue-yun ZHOU Zhi-yu LIANG Kun-lun WANG Rui |
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| Affiliation: | College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China |
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| Abstract: | The influences of nutritional quality on Amorpha fruticosa were studied using five simulated defoliation intensities(20%,40%,60%,80%,and 100% proportion of aboveground vegetation).The grey correlation degree method was used to comprehensively analyze seven nutritional indexes: crude ash(Ash),neutral detergent fiber(NDF),acid detergent fiber(ADF),water-soluble sugar(WSC),crude protein(CP),phosphorus(P),and potassium(K).When the defoliation intensity of A.fruticosa was 40%,the weighted grey correlation degree of leaves and stems was 0.781 2 and 0.651 3,respectively.This was larger than that of the other defoliation intensities.A.fruticosa had the best nutritional value with the 40% defoliation intensity treatment. |
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| Keywords: | Amorpha fruticosa gray relational degree defoliation intensities nutritional value |
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