FERTILIZATION IN ULMUS WITH SPECIAL REFERENCE TO HYBRIDIZATION PROCEDURE

1 February 1946

journal article
research article
Published by Canadian Science Publishing in Canadian Journal of Research

Vol. 24c (1) , 1-3
https://doi.org/10.1139/cjr46c-001

Abstract

Germination tests on fruits derived from open, self, and cross pollinations made in Ulmus during 4 seasons strongly indicate a high degree of self sterility, possibly due to protogyny. It is suggested that a hybridization procedure involving the cross pollination of non-emasculated flowers is feasible in many spp. of the genus, especially under conditions that permit large-scale crossing and the growing of fairly extensive population from which selfed seedlings may be eliminated.

Keywords

HYBRIDITY

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