Studies on Pigmentation of Fruits in Derivatives of Crosses betweenCucurbita maximaDuch. ×C. moschataPoir.

摘要

AbstractPrecocious fruit pigmentation was found to be recessive inCucurbita maxima.When precociousC. maximacultivars were crossed withC. moschataandC. equadorensis, the trait was found to be dominant. Following the introduction of precocious pigmentation intoC. moschattacv. ‘Waltham Butternut’, the character was found to be recessive. In addition, foliage yellowing, spotting and leaf variegation were associated with the character.At fruit maturity two new fruit colors were obtained; orange and green,vsthe typical cream color of the cv. ‘Waltham Butternut’. It is suggested that at least two complementary genes from both parental species control orange fruit color, and a’ single gene is responsible for mature green pigmentation. Improvement ofC. moschatacultivars is aimed at by assembling the beneficial effects of the various c