Crop Science Grow Your Career with CSSA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Crop Sci 9:634-637 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Allinson, D. W.
Right arrow Articles by Tesar, M. B.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Allinson, D. W.
Right arrow Articles by Tesar, M. B.
Agricola
Right arrow Articles by Allinson, D. W.
Right arrow Articles by Tesar, M. B.

Variations in Nutritive Value Among Species of the Medicago Genus as Measured by Laboratory Techniques1

D. W. Allinson, F. C. Elliott and M. B. Tesar2

Individual alfalfa clones derived from populations of Medicago sativa L., M. falcata L., M. glutinosa M. B., and M. coerulea Less. were analyzed for nutritive value by using (a) in vitro fermentation techniques and (b) fiber analyses.

Considerable variation in estimated nutritive value occurred both within and between populations. The range of values of percent dry matter disappearance (DMD), using a 6-hr in vitro fermentation technique, within populations was from 45.0 to 27.1% (M. sativa, ‘DuPuits’) to 33.3 to 27.7% (M. glutinosa). The corresponding range between populatiou means was 35.4 (M. sativa, ‘DuPuits’) to 26.3% (M. falcata, ‘Wisconsin 460’). Clones of high estimated uutritive value were characterized by being relatively low in fibrous or cell wall constituents. Similarly, the production of acetic, propionic, and butyric acids was consistently greater in fermentations when clones of l~igh estimated nutritive value were used as substrates compared to clones of low estimated nutritive value.

Key Words: Dry matter disappearance • Estimated nutritive value • Clones • Cell wall constituents • Volatile fatty acids.

1 Contribution from the Department of Crop Science, Michigan State University, East Lansing 48823. Paxt of a thesis submitted by the senior author in partial fulfillment of the requirements for the Ph.D degree. Published with approval of the Michigan Agricultural Experiment Station as Journal Article 4662.>

2 Former graduate assistant in Crop Science (now Assistant Professor of Agronomy, Department of Plant Science, University of Connecticut, Storrs 06268) and Professors of Crop Science.

Received for publication March 14, 1969.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1969 by the Crop Science Society of America.