匍匐翦股颖果岭草坪草的坪用性状及关联度分析

Characteristics and correlation analysis of six varieties of Agrostis stolonifera for turf green

采用灰色系统关联度分析法,综合评价了匍匐翦股颖品种Penncross、粤选1号匍匐翦股颖和匍匐翦股颖新品系粤选2号、粤选3号、35号、38号6个品种(系)在广州地区夏季的草坪质量,分析了6个草坪质量评价指标之间的关联度大小。结果表明:草坪质量评价指标间的关联度大小顺序是抗热性>质地>密度>绿期>颜色>均一性,草坪草品种(系)间的关联度大小依次为粤选3号>38号>粤选1号>35号>粤选2号>Penncross。这表明,在广州地区选择匍匐翦股颖作为果岭草坪草考虑的首要因素是抗热性,其次是质地和密度。供试的6个匍匐翦股颖品种(系)的草坪综合质量以新品系粤选3号最优,适宜该地区建植高质量的常绿果岭草坪。

were analyzed Characteristics and correlation analysis of six varieties of Agrostis stolon in summer in Guangzhou by using grey correlation analysis. The results ifera for turf green use showed that importance of evaluation indexes trend was heat resistance〉 texture〉density〉green period〉leaf color〉 uniformity. And the comprehensive index for turf species relation degree was Yuexuan No. 3〉35〉Yuexuan No. 1〉38〉Yuexu an No. 2〉Penncross. It indicated that heat resistance was most important index for turf green choosing, followed by texture. Yuexuan No. 3 was the best variety for Guanzhou area among the six tested varieties.