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ISRAEL JOURNAL OF BOTANY, Vol. 36, 1987, pp. 199-213 ABSTRACTS OF PAPERS PRESENTED AT THE ANNUAL MEETING OF THE ISRAEL SOCIETY OF BOT ANY Beer Sheva, 8 February 1988 Pollination mechanism, breeding system, and stigma structure and development in six species of Papilionoideae 2 1 GILA ALON\ RIVKA DULBERGER , CLARA C. HEYN and ELLA WERKER\ Department of Botany, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Is rael and Department of Botany, The GeorgeS. Wise Faculty of Life Sciences, Tel Aviv Univer sity, Tel Aviv 69978, Israel The structure of the stigma, the effect of tripping, and the breeding system were studied in six papilionoid legumes representing the four main pollination mechanisms: (1) the valvular mech anism (Trifolium purpureum); (2) the "brush" (Vicia palaestina); (3) the "piston" (Lupinus pilo sus); and (4) the explosive mechanism (Spartium junceum, Medicago polymorpha, and M. sativa). The timing of stigmatic exudate release and of anther dehiscence as well as the presence of pollen on stigmas and pollen tubes were investigated by light and electron microscopy in buds and open flowers. Insects visiting the flowers were recorded in field populations. Fruit and seed set were examined under open pollination and compared with
Israel Journal of Plant Sciences – Brill
Published: Apr 12, 1987
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