Studies on sex conversion in male <i>Vitis vinifera</i> L. (<i>sylvestris</i>)

Authors

  • S. S. Negi Department of Viticulture and Enology, University of California. Davis
  • H. P. Olmo Department of Viticulture and Enology, University of California. Davis

DOI:

https://doi.org/10.5073/vitis.1970.9.89-96

Abstract

The appearance of functionally hermaphroditic flowers and mature seeded berries on otherwise male vines was defined as a natural sex conversion from functionally male to functionally hermaphroditic flowers. Sex conversion was investigated in vegetatively propagated vines of the wild male V. vinifera clone 030-44 derived from a seed sample collected in Iran.
Frequency of sex conversion varied markedly among inflorescences on the same vine, among vines side by side, and from season to season, which implicated the effect of environment, both local and seasonal.
Studies on vegetative selection for high fruitfulness revealed that sex conversion was not due to somatic mutation or any vegetative syndrome within the vine.

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Published

2017-02-17

Issue

Vol. 9 No. 2 (1970): Vitis

Section

Article

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