エチレン低感受性因子を有するメロン品種の雄花の開花期間とエチレン生成量および果実の日持ち性(育種・遺伝資源)  [in Japanese] Flowering Period, Ethylene Production of Male Flowers and Shelf Life Characteristics of Fruits in Low Sensitive Melon Cultivars with Ethylene(Breeding & Germplasm Resources)  [in Japanese]

果実の日持ち性を高めるエチレン低感受性因子を有するメロン品種'キングナイン'および'0-3'と,本因子を有しない'キングメルティ'および'春系3号'について,雄花の開花期間とエチレン生成量および果実の日持ち性を比較調査した.雄花の開花期間は,'キングナイン'と'0-3'が'キングメルティ'と'春系3号'の2倍長かった.雄花からのエチレン生成量は,'キングナイン'と'0-3'が'キングメルティ'と'春系3号'の2倍多かった.以上の結果,エチレン低感受性因子を有するメロンの雄花は,開花期間が長く,エチレン生成量が多い特性が明らかとなった.

Flowering period, ethylene.production of male flowers and shelf life of fruit were comparatively investigated in four melon cultivars 'King Nine', 'King Melty', '0-3' and 'Harukei-3'. 'King Nine' and '0-3' have long shelf life characteristics regulated by an ethylene low sensitivity gene, but 'King Melty' and 'Harukei-3' do not share these characteristics. The flowering periods of 'King Nine' and '0-3' were twice as long as 'King Melty' and 'Harukei-3'. The amount of ethylene emitted from male flowers of 'King Nine' and '0-3' was twice as much as that from those of 'King Melty' and 'Harukei-3'. It is clear that the ethylene low sensitivity gene extended the flowering period of male flowers and increased the amount of ethylene emitted from those in the subsequent melons.