Abstract
Various factors (pollen diameter, in vitro germination and tube length, in vivo growth rate in selfed and nonselfed styles) which could possibly contribute to the competitive ability of pollen were investigated on 30 Zea mays L. inbred lines. The only factor with which pollen diameter was positively correlated was in vitro pollen-tube growth. Traits related to the early stages of growth (in vitro germination, in vitro tube length, early in vivo pollen growth rate) were all positively correlated with each other, and these early characteristics were negatively correlated with late in vivo tube growth rate, which is largely influenced by the stylar genotype.
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Communicated by P. L. Pfahler
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Sari-Gorla, M., Mulcahy, D.L., Villa, M. et al. Pollen-pistil interaction in maize: effects on genetic variation of pollen traits. Theoret. Appl. Genetics 91, 936–940 (1995). https://doi.org/10.1007/BF00223903
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DOI: https://doi.org/10.1007/BF00223903