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 Young, J. A. Articles by Kay, B. L. Search for Related Content PubMed Articles by Young, J. A. Articles by Kay, B. L. Agricola Articles by Young, J. A. Articles by Kay, B. L.

Germination of Cultivars of Trifolium subterraneum L. in Relation to Matric Potential¹

The germination of 11 cultivars of subclover (Trifolium subterraneum L.) in relation to matric potential was dependent on the texture of the soil substrate. Germination terminated or was virtually zero at minus 6, 8, and 12 bars, respectively, on sand, loam, and clay substrates. Germination on soil beds in the greenhouse was dependent on substrate texture and the amount of seed coverage. On sand beds where the matric potential was high, hydraulic conductivity between the sand grains and the seeds on the soil surface was apparently so low as to impede germination. In all tests in which germination was more than minimal, variability among the cultivars was marked.

Key Words: Soil texture • Seed coverage • Hydraulic conductivity • Osmotic Potential • Variability among cultivars

² Range Scientists, Crops Research Division, ARS, USDA, Renewable Resource Center, Reno, Nev.

³ Specialist, Dept. of Agronomy and Range Science, Univ. of California, Davis, Calif.

Received for publication February 27, 1970.