独占春×美花兰杂交后代观赏性状综合评价
Comprehensive Evaluation of Ornamental Traits in Cymbidium eburneum×Cymbidium insigne
韩豫 1陈彧 1饶丹丹 1陈显臻 1陈国德1
作者信息
- 1. 海南省林业科学研究院(海南省红树林研究院),林业高新技术研究所,海口,571100
- 折叠
摘要
为了充分开发利用海南野生兰资源,有效保护海南野生兰种质资源,对海南原生种独占春和美花兰进行杂交育种.本研究以独占春×美花兰F1代群体中筛选的7个株系为材料,采用主成分分析法,对植株整体形态、花部性状等20个性状指标进行观赏性综合评价.结果表明:7个株系除了花开展情况性状表现一致外,其他19个性状表现上差异显著,变异系数在7.56％～71.63％之间;20个性状指标可归纳为5个成分因子,即花数、花形、花香、花色和花枝5个成分因子,累积贡献率达95.62％;利用主成分法计算各株系主成分分值,筛选出2个观赏性状优良的杂交后代株系,此研究结果可以为兰花新品种选育提供重要依据.
Abstract
In order to fully exploit the resources of Hainan wild orchid and effectively protect the germplasm re-sources of Hainan wild orchid,the hybridization breeding of Hainan native species Cymbidium eburneum and Cymbidium insigne was carried out.In this study,seven individuals from the F1 generation of Cymbidium eburneum×Cymbidium insigne,the native species of Hainan,were chosen as materials,using principal component analysis,the comprehensive evaluation of 20 traits of plant morphology and flower traits was carried out.The results showed that in addition to the consistent flower development,there were significant differences among the seven individuals in different 19 traits,the coefficient of variation ranged from 7.56％to 71.63％.The 20 traits could be divided into 5 component factors,including flower number factor,flower shape factor,flower fragrance factor,flower color factor,flower branch factor,and the cumulative contribution rate of 5 component factors was 95.62％.Principal compo-nent method was used to calculate the principal component scores of each line,and two hybrid lines with good or-namental characters were screened out.The results can provide important basis for the breeding of new orchids.
关键词
海南原生种/独占春/美花兰/主成分分析法/综合评价Key words
The native species of Hainan/Cymbidium eburneum/Cymbidium insigne/Principal component analy-sis/Comprehensive evaluation引用本文复制引用
基金项目
海南省属科研院所技术创新专项(KYYS-2021-16)
出版年
2024
NETL
NSTL
维普
万方数据