Flower Development of the Chinese Gooseberry (Actinidia chinensisPlanch.)

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Abstract
Flower development of the Chinese gooseberry (Actinidia chinensis Planch.) was followed for the 1971–72 growing season for the pistillate cultivar ‘Hayward’ and the staminate clone ‘Alpha’. Flower initiation takes place late in the seasonal cycle, occurring just before the resumption of shoot growth in the spring (mid-late September). Development of pistillate and staminate flower buds is similar up to inception of the gynoe-cium which appears within 15 days of initiation. Pistillate flower buds continue androecial development but lack functional pollen, whereas staminate flower buds cease gynoecial development soon after the initiation of the stigma. Lateral flower buds are initiated giving a compound dichasium. In some pistillate cultivars, especially ‘Haywardrs, many of these lateral flower buds cease development soon after their initiation and abscise. Aberrant flower development occurs in some axils, notably in ‘Hayward’. The number of functional flowers remaining per shoot is independent of the distance from the base of a lateral.

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