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 Townsend, C. E. Articles by Danielson, R. E. Search for Related Content PubMed Articles by Townsend, C. E. Articles by Danielson, R. E. Agricola Articles by Townsend, C. E. Articles by Danielson, R. E.

Non-Translocation of Temperature-Induced Self-Compatibility Substances(s) in Alsike Clover, Trifolium Hybridum L.¹

Air temperature had a marked effect but soil temperature had no effect on the self-compatibility response of tetraploid alsike clover, Trifolium hybridum L., clone 3-7B. Flowering stems of propagules of tetraploid clone 3-7B and diploid clones 6-5 and 7-1 were arranged to form two groups per propagule. One group was subjected to an air temperature of 32 C and the other to an air temperature of 23 C. Thus the flowering stems of each propagule were exposed to two air temperatures simultaneously. Percentage of florets setting seed for such propagules was dependent upon the air temperature at which the flowering stems were held. At 23 C the propagules were self-incompatible, but at 32 C the compatibility reaction changed to one of considerable self-compatibility. We concluded that the substance (s) responsible for the change in the compatibility reaction was not translocated from one flowering stem to another on the propagule.

Key Words: Divided Propagule Technique • Temperature Control • Sterility

² Research Geneticist. Crops Research Division, ARS, USDA, and Faculty Affiliate, Department of Agronomy, Colorado State University

³ Professor of Agronomy, Colorado State University.

Received for publication March 18, 1968.