This is a preview. Log in through your library . Abstract Embryo sac development has been investigated in unpollinated, cross pollinated and gibberellic acid (GA₃ ) treated flowers of Pyrus communis L ...
Davis, B. D., Symposium on Amino-Acid Metabolism, edit. by McElroy, W. D., and Glass, B. H., 799 (Johns Hopkins Press, Baltimore, Md., 1955).
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