玫瑰花产量灰色分析、Kriging插值及选择指数研究  

The Grey Analysis, Kriging and Selection Index of Flower Yield in Rugosa Rose

作　　者：李艳艳[1] 丰震[1] 赵兰勇[1] 莫镇华[1] 张宝[1] 

机构地区：[1]山东农业大学林学院,山东泰安271018

出　　处：《中国农业科学》2008年第5期1429-1435,共7页Scientia Agricultura Sinica

基　　金：山东省良种产业化资助项目[鲁科农字(2002)228号]

摘　　要：【目的】探讨玫瑰(Rosa rugosa Thunb.)高产品种的选育理论与技术。【方法】对20个玫瑰品种的15个数量性状与单株产花量进行灰色系统分析、Kriging插值模拟、综合选择指数分析。【结果】单株花数、分枝数、花蕾宽和单花鲜重等4个性状与单株产花量的灰色关联度较大(大于0.5)。根据单株产花量的Kriging插值模拟结果,单株产花量随单株花数、分枝数的增加而增加,任何单一因素的变化均不能保证主要目标性状的提高。【结论】提高玫瑰单株产花量的选育方法应该采用多性状综合选择法,选用单株花数、分枝数、花蕾宽和单花鲜重等4个性状,以关联度为权重建立了单株产花量综合选择指数模型:I=0.3187x1-318.6164x2+670.1262x4+6.3474x8,指数遗传力=0.8014,综合育种值选择进展ΔH=245.8811,该研究结果对今后玫瑰高产花量品种的选育具有指导意义。[ Objective ] Seeking for the theory and techniques of selection breeding of high flower yield rugosa rose cultivars. [Method] The analysis of grey system, Kriging interpolation and integration selection index were employed to investigate the relationship between the flower yield per plant and 15 quantitative traits of 20 rugosa rose cultivars. [Result] The grey relational grade （GRG） of the flower number per plant, the number of branch, the width of floral bud and the weight of single flower to the flower yield per plant were larger （〉0.5）. Kriging interpolation simulation was applied to analyze the flower yield per plant. It was found that the value of target trait went up with increase of the number of flower per plant and the number of branch. Moreover, the indirect selection of either trait could not get better improvement of flower yield per plant. [ Conclusion] It is necessary to improve flower yield per plant by multi-trait selection. The integration selection index equation of flower yield per plant was established with the characters flower number per plant, the number of branch, the width of floral bud and the weight of single flower. I=0.3187X1- 318.6164x2＋670.1262x4＋6.3474xg. Index heritability = 0.8014, selective response of the integration breeding value = 245.8811. Results of this research will provide a theoretic basis for genetic breeding of rugosa rose.

关 键 词：玫瑰(Rosa RUGOSA Thunb.) 灰色关联度 数量性状 KRIGING插值 选择指数 

分 类 号：S685.12[农业科学—观赏园艺]