摘要
以‘水晶白’、‘晚霞’等 30个小菊品种为亲本 ,配制成 2 8个杂交组合 ,对杂交后代的花器性状进行统计分析。结果发现 ,红色遗传能力大于黄色 ,且表现出较强的偏母性遗传特点 ,而原始色黄色和白色没有明显的偏母性遗传 ,以白色系品种作母本后代会出现许多亲本不具有的花色 ;杂交后代的舌状花数目、筒状花数目和花序直径与双亲比较 ,F1代表现出明显的遗传优势 ,杂种总平均舌状花数目、筒状花数目和花序直径分别相当于亲中值的 12 2 .6 %、 12 8.7%、 12 4.7%,随着母本舌状花数目和筒状花数目的增大 ,杂种平均舌状花数目、筒状花数目和花序直径的增加幅度变缓 ,甚至出现衰弱的趋势 ,但花序直径除外。在花型上 ,平盘型的遗传能力比单窄瓣型的强。
An observation was made on some characteristics of flowers in F 1 generation by the 28 multiple combinations between 30 varieties of Chrysanthemum.The results indicated that red color of flowers was stronger than yellow at genetic,and original color of yellow and white didn't belong to matroclinal heredity.White matroclinal could produce wide separating color in F 1 generation.The inflorescence diameter,number of ray florets and tubular florets appeared heterosis in F 1 generation.The hybrid's mean inflorescence diameter,the number of ray florets and tubular florets were 122.6%,128.7% and 124.7% of parent's respectively,and the value of these three characters inclined more slowly,even appeared hybrid weakness except for mean inflorescence diameter as the parent's increased.The heredity of flat plate shape was stronger than 1-3 cycle plate shaped flower.
出处
《园艺学报》
CAS
CSCD
北大核心
2003年第2期175-182,共8页
Acta Horticulturae Sinica
基金
江苏省科技攻关项目 (BE2 0 0 135 4)
江苏省基础研究计划青年创新人才基金项目 (BK2 0 0 2 417)
上海市科技兴农重点攻关项目〔农科攻字 (99)第 6 7〕
关键词
花器
性状
F1代
表现
遗传
杂交
菊花
Dendranthema grandiflora
Hybridization
Flower character
Heredity
