Crop Science Journal of Natural Resources and Life Sciences Education
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Crop Sci 7:325-326 (1967)
© 1967 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 Rutger, J. N.
Right arrow Articles by Dickson, A. D.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Rutger, J. N.
Right arrow Articles by Dickson, A. D.
Agricola
Right arrow Articles by Rutger, J. N.
Right arrow Articles by Dickson, A. D.

Variation and Covariation in Agronomic and Malting Quality Characters in Barley. II. Interrelationships of Characters.1

J. N. Rutger, C. W. Schaller and A. D. Dickson2

Correlations between all possible pairs of 8 agronomic and 9 malting quality traits were calculated from a population of 102 random lines of the F4 generation from an intervarietal malting barley cross. A strong positive correlation between head erectness and lodging should prove useful for selection purposes, since head erectness can be determined in th absence of differential lodging. Plump barley was negatively correlated with barley color and positively with malt extract. Extract was positively correlated with bushel weight and the wort N/malt N ratio. Beta amylase was positively associated with diastatic power and the beta/alpha ratio. Diastatic power and beta/alpha ratio were positively correlated. Alpha amylase was positively correlated with the wort N/malt N ratio. Alpha and beta amylases were not correlated, indicating that these two traits are independently inherited.

Grain yield exhibited no really large correlations with any of the other traits, indicating that it should be possible to select for most quality traits without seriously reducing yield.

Correlations among three malting quality and two agronomic traits were compared with published reports by other workers.

Key Words: correlations • malt • alpha amylase • beta amylase • wort N.

1 Contribution from the Department of Agronomy, University of California, Davis, Calif., and the Crops Research Division, Agricultural Research Service, USDA. Some of the results reported are from work supported by grants from the Malting Barley Improvement Association, the Davis Campus Committee on Research (DG-30), and National Institutes of Health (FR-0009). Part of a thesis submitted by the senior author in partial fulfillment of requirements for the Ph.D. degree.

2 Formerly Research Assistant (now Assistant Professor, Department of Plant Breeding, Cornell University); Professor of Agronomy, University of California; and Chemist, Crops search Division, Barley and Malt Laboratory, Madison, Wis.

Received for publication November 23, 1966.




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 © 1967 by the Crop Science Society of America.