|
To find out the influence of parents on the fruit sugar content of F₁ hybrids in oriental melon (Cucumis melo L.), accumulation patterns of sucrose, fructose, glucose and total sugars were examined in the fruits of the F₁ hybrids from the crosses between `Euncheon(sin)´ , `Cheongsagwa´ and `Josaeng-Hwanghyang´ (female parents) and `Gaeeuncheon´ (pollen parent). The sugar contents of F₁ hybrids were lower than those of the pollen parent but higher than those of the female parents regardless of sugar kinds and cross combinations. The time of sucrose accumulation was found to be earlier in F₁ hybrids than in the female parents but later than in the pollen parent. Particularly, the sucrose content, a crucial factor for the sweetness determination in fruits, was found to be higher in the F₁ hybrids as compared to the lower contents in female parents. Results from the present study suggest that when an inbred line with a high fruit sucrose content is used as a pollen parent for the production of F₁ hydrids in oriental melon (Cucumis melo L.), fruit sucrose contents of F₁ hybrids would become higher even though the sucrose contents of female parents are low.
|