Study on the Heredity of Fruit Color of Summer Squash(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Author(s):: CHEN Feng-zhen; Department of Landscape Engineering，Heze University，Heze，Shandong 274000

Abstract:: Taking two green inbred lines（‘A-7’，‘23-4G’）and one white inbred line(‘q-1’) as parent materials，four hybrid crosses（F₁）were obtained by reciprocal crosses.Backcross generations and F₂ generations were obtained by F₁ backcross and selfing；then F₂∶3 groups were obtained by F₂ selfing.Fruit color of generations of four hybrid crosses and F₂∶3 group by genetic statistics and χ2 fitness test were analyzed.The results showed that fruit color of summer squash was quality trait and controlled by one pair of nuclear genes，green color was dominant to white color.It was different in green fruit color on separating generation，so fruit color perhaps was also controlled by polygenes having small effects.

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Last Update: 2014-08-25