农学学报2024，Vol.14Issue(11)：35-43,9.
大花蕙兰'篝火'和'世界和平'杂交F1代性状分离研究
Study on Character Segregation of F1 Hybrids from Cymbidium'Gohho No Shinpi'×Cym.'Peace in the World'
摘要
Abstract
To study the hereditary law of important characters of Cymbidium and provide references for parents'selection and new varieties breeding,the traits of crossing F1 generation from Cym.'Gohho No Shinpi'with Cym.'Peace in the World'were analyzed.The quantitative characters and qualitative indicators of parents and hybrid offspring were observed and statically analyzed.The results indicated that overall plant type of F1 generation tended towards the higher numerical value of the parent.The peduncle length and number of arrows showed positive heterosis advantage.The average value of inflorescence length and flowers were close to the paternal mean.The average value of flower diameter,petal length,petal width,calyx length,and calyx width were between those of the parents and closer to the paternal mean.Most of flower types were round,with petals resembling lotus petals.The flower color trait showed a relatively wide separation,forming a gradient of fusion from the maternal yellow to the paternal green,along with a small number of red and white colors.The parental petal pattern was solid,but the offspring were separated and appeared red.The flower color and petal pattern were superimposed,which were significantly different from the parents.The base color of the lip was related to the flower color,and the separation rule was the same as the flower color.The overall inheritance of lip spots was from the maternal parent,and the distribution of lip spots combined the characteristics of both parents,with 38.3%being closer to the maternal parent and 15.0%being closer to the paternal parent,while the remaining 46.7%were a fusion of both parents.All lip spot colors showed variation in depth,width,and degree of fusion.The variation coefficients of plant phenotypic traits ranged from 10.34%-18.66%,and the coefficients of flower type-related phenotypic traits ranged from 12.57%-35.62%.In conclusion,the variation of F1 generation was rich,and the heterosis of plant type and flower arrow morphology showed positive super-parent heterosis.In flower color heredity,lip spot color and distribution were based on female parent and gradually changed to male parent fusion gradient,and the flower type was between parents and tended to male parent.This research could supply reference for directed breeding of certain plant types and floral traits.关键词
大花蕙兰/杂交/性状/F1代/遗传表现Key words
Cymbidium hybridium/hybridization/traits/F1 generation/genetic performance分类
农业科技引用本文复制引用
韩菊兰,许震寰,孙婷,白为,唐霄铧,杨马进..大花蕙兰'篝火'和'世界和平'杂交F1代性状分离研究[J].农学学报,2024,14(11):35-43,9.基金项目
四川省农业科学院自主创新项目"四川特色花卉种质资源收集与创新利用研究"(23LKYCX1-3) （23LKYCX1-3）
四川省农业科学院中试熟化项目"大花蕙兰新品种'玉兔'及配套生产技术集成与示范"(2024ZSSFXD05-12) （2024ZSSFXD05-12）
四川省省级公益性科研单位基本科研业务费专项资金项目"大花蕙兰'梦境'和春剑优良杂交后代选育"(22JBKY02). （22JBKY02）
