Cytogenetics and flower color inheritance of fuchsias
2004
Wanthana Muthita(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Horticulture) | Nuttha Kuanprasert(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Horticulture)
Fuchsias hybridizations of one-selfed and six-crossed were conducted. It was found that fertilization occurred in low rate as well as germination percentage, and number of derived hybrids were low. Flower color inheritance was determined, red color of sepal might be controlled by dominant gene and probably, there were more than one gene that governed this character. Petal color might be controlled with the minimal of two genes. Red petal was governed by one dominant gene and white was governed by another pair of recessive gene with possibility that recessive gene could perform epitasis on another gene. Pollen germination was tested. It was found that pollen could germinate well in 0.2 percent of sucrose. When concentration of sucrose was more than 0.2 percent, germination percentage was decreased. Chromosome number of parental varieties were 62-90 whereas chromosome number of hybrids ranged in between parental varieties, 75-90.
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