寒兰种质资源表型性状多样性分析  

Analysis on Phenotypic Character Diversity of Cymbidium kanran Germplasm Resources

作　　者：段艳皊 范义荣[1] 敖素燕 宁惠娟[1] 郭雨楠[1] 

机构地区：[1]浙江农林大学风景园林与建筑学院,浙江临安311300

出　　处：《中国农学通报》2014年第16期143-147,共5页Chinese Agricultural Science Bulletin

基　　金：浙江省重大科技专项和优先立题项目"兰花杂交新优品种选育及工厂化生产关键技术研究"(2009C02G2100001);浙江省重大科技专项重点项目"花卉新品种选育"(2012C12909-11)

摘　　要：为探讨寒兰的表型多样性,以35份寒兰种质为研究材料,选取38项表型性状进行多样性分析。对数量性状进行变异分析及相关性分析;对质量性状进行概率分布分析,并以Simpson指数和Shannon指数为评价指标进行多样性分析。结果表明,数量性状变异系数均大于10%,变异极为显著,数量性状间存在显著正相关;花瓣斑点、唇瓣条纹等部分质量性状较稳定,一致性较高;花瓣纵切面形状、侧萼纵切面形状等多数质量性状Simpson指数和Shannon指数较高,多样性程度较高,多样性丰富。说明寒兰的表型性状变异显著、多样性丰富。Study the phenotypic characters of Cymbidium kanran germplasms, 35 portions of Cymbidium kanran germplasms were taken as the research materials and 38 phenotypic characters were selected for diversity analysis. Variation analysis and correlation analysis were conducted to quantitative characters, probability distribution analysis to qualitative characters, and diversity analysis was conducted with Simpson＇ s index and Shannon-Wiener index being the evaluation indicators. The result showed all variation coefficients of the quantitative characters exceed 10% with significant variation, and there was remarkable positive correlation among the quantitative characters. Quantitative characters of petal spots, labial palp stripes and other parts were relatively stable with higher consistency. Simpson＇ s index and Shannon-Wiener index of petal longitudinal section shape, buccae longitudinal section shape and most of the other quantitative characters were relatively high, with relatively high diversity degree and rich diversity. In conclusion, all of those indicate the phenotypic characters of Cymbidium kanran germplasms were with notable variation and rich diversity.

关 键 词：寒兰 种质 表型性状 多样性分析 

分 类 号：S682.31[农业科学—观赏园艺]