森林与环境学报2016，Vol.36Issue(3)：301-305,5.DOI:10.13324/j.cnki.jfcf.2016.03.008
3种野牡丹属植物杂交特性
Hybridization characteristics of 3 species of Melastoma
摘要
Abstract
The species of Melastoma L. have heteromorphic stamens and most are of high ornamental value. In order to breed new hybrids and investigate the different functions of heteromorphic stamens by crossbreeding, M. malabathricum was chosen as female parents, M. sanguineum and M. dodecandrum as male parent. The fruit set, plump seed rate and seed germination were measured, with stigmas pollinated by long and short stamens of male parent, respectively. Furthermore, morphological differences between hybrids and self-bred progenies were observed. It was discovered that the plump seed rate of the combination pollinated by M. sanguineum long stamens was significant higher than that by its short ones, while there was no significant difference in M. dodecandrum. In addition, seed germination percentage and germination index were not affected by the pollens of heteromorphic stamens from the same father. A higher cross-compatibility was obtained between M. malabathricum and M. sanguineum, with 100%fruit set and 75.33% seed germination percentage for those pollinated by long stamens. All of the offspring had 5 leaf veins which were similar to M. malabathricum. The offspring, produced by M. malabathricum and M. dodecandrum, was creeping, and leaf index, with 47.23% coefficient of variation, was regarded as an effective way to determine their morphological characteristics. While the offspring by M. malabathricum and M. sanguineum was erect, and there was an obvious heterosis in the hybrids, with 80%hybrids higher than self-bred progenies in plant height.关键词
杂交/异型雄蕊/种子萌发/形态鉴定/野牡丹属Key words
hybridization/heteromorphic stamens/seed germination/morphological identification/Melastoma L分类
农业科技引用本文复制引用
江鸣涛,兰思仁,吴沙沙,陈燕琼,彭东辉..3种野牡丹属植物杂交特性[J].森林与环境学报,2016,36(3):301-305,5.基金项目
福建省特色花卉品种创新与种苗设施繁育产业化工程(2014S1477－7)；福建省林业厅资助项目(野牡丹科植物种质资源保护与利用推广,闽林推[2011]5号)。 （2014S1477－7）
