农学学报2024，Vol.14Issue(5)：47-53,7.
三角梅'伊娃夫人'的繁育体系研究
Study on Breeding System of Bougainvillea glabra'Mrs.Eva'
摘要
Abstract
To clarify the flowering characteristics and the impact of breeding systems on Bougainvillea glabra'Mrs.Eva',so as to promote its hybrid breeding and garden application,field observation method was adopted to investigate its flowering phenology,as well as the dynamic process of flowering and morphological characteristics of its flowers.FDA staining method and liquid culture medium method were used to determine its pollen viability and in vitro germination rate.The breeding system was determined through a combination of morphological observation,aniline blue staining method,and field hybridization experiments.The results showed that:(1)the floral tube structure of B.glabra'Mrs.Eva'was unique,cylindrical with upper part wrinkled and both ends swollen,which hamper most insect pollination.(2)The pollen grains of B.glabra'Mrs Eva'were round or elliptical in shape,with reticulate patterns;the total pollen count per flower was 1375,and the suitable temperature for pollen germination was 28℃;the pollen exhibits group germination effect.(3)The ratio of pollen quantity to ovule was 11000,and the hybridization index was 4.Based on the results of field bagging and artificial pollination experiments,it can be concluded that the main breeding system of B.glabra'Mrs.Eva'is cross-pollination type and requires pollinators.The research results are of certain significance for resource utilization and germplasm innovation of B.glabra'Mrs.Eva'.关键词
三角梅/开花生物学/花粉萌发率/繁育系统/杂交育种Key words
Bougainvillea/flowering biology/pollen germination rate/breeding system/hybridization breeding分类
农业科技引用本文复制引用
杜学林,刘悦明,伍青,温志,刘春琪,王凤兰..三角梅'伊娃夫人'的繁育体系研究[J].农学学报,2024,14(5):47-53,7.基金项目
广州市基础研究计划基础与应用基础研究项目"优质特色花木盆景品种培育技术研发与示范"(202201011833) （202201011833）
2023年乡村振兴战略专项—省级农业科技发展及资源环境保护管理项目"以农产品为单元的广东省现代农业产业技术体系创新团队建设项目(花卉)"(2023KJ121). （花卉）
