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 Gibson, P. B. Articles by Chen, C.-C. Search for Related Content PubMed Articles by Gibson, P. B. Articles by Chen, C.-C. Agricola Articles by Gibson, P. B. Articles by Chen, C.-C.

Reproduction and Cytology of Trifolium uniflorum¹

Among the 36 T. uniflorum plants studied, 30 plants were highly self-incompatible, two were highly self-compatible, and tour were intermediate. The average number of ovules per pod was 7.9 and the average number of seeds per pod following cross-pollination of emasculated florets was 3.2. Tripping was not necessary for seed production on a self-compatible plant.

Somatic cells of T. uniflorum contained 28 submetacentric and four subtelocentric chromosomes. The subtelocentric chromosomes possessed satellites. The chromosomes formed almost exclusively quadrivalents and bivalents at metaphase I. The high frequency of quadrivalents (4.46 per microsporocyte) suggests an autotetraploid origin.

Key Words: Cytogenetics • Clover improvement • Pollen compatibility

² Research Agronomist, Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture; and Visiting Assistant Professor of Agronomy, South Carolina Agricultural Experiment Station, Clemson, S. C. 29631.

Received for publication July 1, 1970.