참깨의 開花 및 登熟에 관한 硏究 Ⅸ. 참깨 有限開花性의 遺傳分析

Studies on the flowering and maturity in sesame Ⅸ. Inheritance of determinate-flowering characteristics in sesame

Breeding of determinate-flowering type in sesame is being attempted in Crop Experiment Station. In an attempt to make a gene analysis of the determinate-flowering characteristics, two set of F₁, F₂, BC₁F₁, BC₂F₁ which made using Ahnsan and Hanseom as an indeterminate parent and SIGH8705-2 as a determinate parent were applied in the experiment in 1989. Among the characteristics of determinate parent, number of capsules per plant were lesser than those of the indeterminate varieties which is important characteristics to be improved in determinate-flowering type. Inheritance of determinate-flowering characteristics is recognized to be controlled by the single recessive gene, from the segregation ratio of indeterminate and determinate as 3:1 in F₂ population of indeterminate and determinate cross, and 1:1 in test cross of BC₂F₁ population.