HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Berry, C. D. Articles by White, G. A. Search for Related Content PubMed Articles by Berry, C. D. Articles by White, G. A. Agricola Articles by Berry, C. D. Articles by White, G. A.

Natural Cross-Fertilization in Veronia anthelmintica (L.) Willd¹

Vernonia anthelmintica (L.) Willd. was found to be self-fertile but partially cross-pollinated in contrast to the reported self-sterility of species of Vernonia occurring naturally along the southeastern Coastal Plain of the United States. The vernonia flower has characteristics which should promote self-pollination. A recessive white-flower character was used to test for cross-pollination. No crossing occurred when white-flowered plants were grown with the normal violet-flowered plants in the greenhouse. When the two types were grown together in the field, however, at least 13% crossing was indicated by the presence of violet-flowered plants among the progenies of the white-flowered maternal parents. Pollen for natural crossing is thought to be insect borne.

Key Words: Genetic marker • Outcrossing

² Graduate Research Assistant (now Assistant Professor, Department of Agronomy and Soils, Auburn University, Auburn, Ala.); Professor, Department of Agronomy, Purdue University, Lafayette, Ind. 47907; and Research Agronomist, Crops Research Division, ARS, USDA, Beltsville, Md. 20705.

Received for publication June 26, 1969.