Abstract
IN many crosses plant-breeders are confronted with one or more of the following problems : (1) the pollen grains may fail to germinate on a foreign stigma ; (2) if they germinate, the pollen tubes may remain short and burst during their passage ; (3) even if the tubes grow successfully, their progress may be so slow that the ovary becomes abscissed before they reach the ovules.
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References
See Maheshwari, P., “An Introduction to the Embryology of Angiosperms” (1950).
Cappelletti, C., Nuovo Gior. Bot. Ital., N.S., 44, 613 (1937).
Bosio, M. G., Nuovo Gior. Bot. Ital., 47, 591 (1940).
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KANTA, K. Intra-ovarian Pollination in Papaver rhoeas L.. Nature 188, 683–684 (1960). https://doi.org/10.1038/188683a0
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DOI: https://doi.org/10.1038/188683a0
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