caa a22 4500 469096861 CHVBK 20180323133033.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00317407 doi (NATIONALLICENCE)springer-10.1007/BF00317407 Plant size, geitonogamy and seed set in Ipomopsis aggregata [Elektronische Daten] [Tom de Jong, Nickolas Waser, Mary Price, Richard Ring] Summary: We used powdered fluorescent dyes to estimate receipt of self vs. outcross pollen in the self-incompatible species Ipomopsis aggregata (Polemoniaceae). Flowers on small and large plants received equal amounts of outcross pollen, whereas flowers on large plants received more self pollen, so the proportion of self pollen delivered through geitonogamy increased with plant size. In natural populations emasculation of all flowers on a plant raised average seed set per flower from 5.19 to 6.99 and also raised fruit set, though not significantly. From these results one expects a negative correlation between plant size and seeds per flower. The opposite trend was observed in a sample of plants in the field, suggesting that deleterious effects of geitonogamy on female fecundity in large plants can be overruled by other factors such as size-related fruit or seed abortion. Results are discussed in relation to the evolution of gynodioecy. Springer-Verlag, 1992 Pollen transfer nationallicence Self-incompatibility nationallicence Monocarpic perennial nationallicence Evolutionary ecology nationallicence de Jong Tom Department of Population Biology, University of Leiden, P.O. Box 9516, 2300 RA, Leiden, The Netherlands aut Waser Nickolas Department of Biology, University of California, 92521, Riverside, CA, USA aut Price Mary Department of Biology, University of California, 92521, Riverside, CA, USA aut Ring Richard Earlham College, Box 1198, 47374, Richmond, IN, USA aut Oecologia Springer-Verlag 89/3(1992-03-01), 310-315 0029-8549 89:3<310 1992 89 442 https://doi.org/10.1007/BF00317407 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317407 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- de Jong Tom Department of Population Biology, University of Leiden, P.O. Box 9516, 2300 RA, Leiden, The Netherlands aut NATIONALLICENCE 700 1- Waser Nickolas Department of Biology, University of California, 92521, Riverside, CA, USA aut NATIONALLICENCE 700 1- Price Mary Department of Biology, University of California, 92521, Riverside, CA, USA aut NATIONALLICENCE 700 1- Ring Richard Earlham College, Box 1198, 47374, Richmond, IN, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 89/3(1992-03-01), 310-315 0029-8549 89:3<310 1992 89 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer