| 柱花草品系的灰色关联度分析 |
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| 引用本文： | 吕玉兰,白昌军,刘 倩,魏团仁,王跃全,张红梅,程金焕.柱花草品系的灰色关联度分析[J].热带作物学报,2009,33(3):48-53. |
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| 作者姓名： | 吕玉兰 白昌军 刘 倩 魏团仁 王跃全 张红梅 程金焕 |
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| 作者单位： | 云南省农业科学院热带亚热带经济作物研究所;中国热带农业科学院热带作物品种资源研究所热带牧草研究中心;云南省农业科学院热带亚热带经济作物研究所;云南省农业科学院热带亚热带经济作物研究所;云南省农业科学院热带亚热带经济作物研究所;云南省农业科学院热带亚热带经济作物研究所;云南省农业科学院热带亚热带经济作物研究所 |
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| 基金项目： | 国家科技支撑计划-热带亚热带地区超高产牧草新品种选育及产业化示范(NO.2008BADB3B08) |
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| 摘 要： | 采用灰色关联度分析法对18个柱花草品系的8个农艺性状进行综合评价。结果表明，品系TPRC 2001-47、TPRC 2001-46和TPRC 2001-71的综合表现最好，其中有6个品系优于对照热研2号。等权关联度与加权关联度分析结果基本一致，分析结果与柱花草的实际表现一致。不同性状与鲜草产量的关联度不同，7个性状与鲜草产量的关联度排序为：干物率＞第1分枝日平均生长速度＞株高日平均生长速度＞刈割时株高＞越冬存活率＞刈割时第1分枝长＞草丛宽。
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| 关 键 词： | 柱花草 农艺性状 牧草产量 灰色关联度 |
Grey Relational Analysis of Stylosanthes Cultivars/Lines |
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| LU Yulan,BAI Changjun,LIU Qian,WEI Tuanren,WANG Yuequan,ZHANG Hongmei and CHENG Jinhuan.Grey Relational Analysis of Stylosanthes Cultivars/Lines[J].Chinese Journal of Tropical Crops,2009,33(3):48-53. |
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| Authors: | LU Yulan BAI Changjun LIU Qian WEI Tuanren WANG Yuequan ZHANG Hongmei and CHENG Jinhuan |
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| Institution: | Tropical and Subtropical Cash Crops Institute, Yunnan Academy of Agricultural Sciences;Tropical Pasture Research Center, CATAS;Tropical and Subtropical Cash Crops Institute, Yunnan Academy of Agricultural Sciences;Tropical and Subtropical Cash Crops Institute, Yunnan Academy of Agricultural Sciences;Tropical and Subtropical Cash Crops Institute, Yunnan Academy of Agricultural Sciences;Tropical and Subtropical Cash Crops Institute, Yunnan Academy of Agricultural Sciences;Tropical and Subtropical Cash Crops Institute, Yunnan Academy of Agricultural Sciences |
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| Abstract: | Grey relational analysis was applied for comprehensive evaluation of 8 agronomic characters of 18 cultivars/lines of Stylo (Stylosanthes guianensis). The results show that the Stylo cultivars/lines TPRC 2001-47, TPRC 2001-46 and TPRC 2001-71 were best in comprehensive performance, and that 6 of all Stylo cultivars/lines were better than the Stylo cultivar Reyan 2 (S. guianensis cv. Reyan 2) (CK). The results of equally weighted relational grade and weighted relational grade were identical and coincided with actual performance of the Stylo cultivars/lines. The agronomic characters had different relational grade against the fresh yield, and the relational grade between the 7 agronomic characters and the fresh yield was ranked in the order of dry matter > daily mean growth rate of the first branch > daily mean height growth rate > height at cutting > wintering survival rate > the length of the first branch at cutting > grass width. |
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| Keywords: | Stylosanthes guianensis agronomic characters pasture yield grey relational grade |
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