A field survey of dioecious plants in Israel:sex ratio in seven rare species

Author: ROTTENBERG A.

Source: Botanical Journal of the Linnean Society, Volume 134, Number 3, November 2000 , pp. 439-442(04)

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Abstract:

Sex ratio was tested in seven rare dioecious species in Israel. This was in order to complete a previously published sex ratio survey of the other 41 dioecious species in Israel, and to examine further the hypothesis that sex ratio in natural populations is usually 1:1. One population was tested in each of five rare wild species. In addition, one rare feral population was tested in each of two non-native, naturalized tree species. Sex ratio in all seven species tested was not different from the expected 1:1. These results strengthen the suggestion that in natural populations of dioecious plants sex ratio is usually 1:1. Copyright 2000 The Linnean Society of London

Keywords: breeding systems; desert; Ephedra; Mediterranean; sex determination; Sinai.

Language: English

Document Type: Research article

Affiliations: Department of Evolution, Systematics and Ecology, The Hebrew University, Jerusalem, 91904, Israel

Publication date: 2000-11-01