Cytogenetics and Flower Color Inheritance of Fuchsias

Abstract

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 epistasis on another  gene. Pollen  germination  was tested.  It was found  that  pollen  could  germinate  well  in 0.2 %  of sucrose. When concentration of sucrose  was  more than 0.2 %, germination  percentage  was  decreased.  Chromosome  number  of  parental   varieties   were  62 – 90  whereas chromosome number  of  hybrids   ranged  in between  parental  varieties,  75 – 90.