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 21:567-571 (1981)
© 1981 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 Barker, R. E.
Right arrow Articles by Casler, M. D.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Barker, R. E.
Right arrow Articles by Casler, M. D.
Agricola
Right arrow Articles by Barker, R. E.
Right arrow Articles by Casler, M. D.

Genotype-Environment Interactions for Forage Yield of Reed Canarygrass Clones1

R. E. Barker, A. W. Hovin, I. T. Carlson, P. N. Drolsom, D. A. Sleper, J. G. Ross and M. D. Casler2

Limited information is available on genotype-environment (GE) interactions of dry matter yields in reed canarygrass (Phalaris arundinacea L.). We measured forage yield on 60 clones of reed canarygrass for 3 years in Minnesota, Iowa, Wisconsin, and North Dakota, 2 years in Missouri, and 1 year in South Dakota. Objectives were to determine the magnitude of GE interactions for forage yield testing, to characterize testing environments, to determine an efficient allocation of testing sites, and to ascertain effectiveness of stability parameters in selecting clones for breeding programs. Significant genetic differences were found for harvest 1, regrowth, and season total dry matter yields. Genotype x location and genotype x location x year variances were significant, whereas genotype x year interactions were not. Location and genotype x location effects were inconsistent among years. Year x location interactions were very large in relation to all other sources of variation. Correlations of clonal mean total dry matter yields among locations and resultant cluster analyses indicated that la. and Mo. should represent the minimum number of yield testing sites. Iowa had a high value as a testing site whereas Mo. was intermediate. North Dakota and/or S. Dak. could be added if additional information is desired on broader adaptability and to identify superior genotypes for these locations. Consistent conclusions regarding clonal performance could not be drawn from the stability parameters b, r2, and sy.x. Mean yields per se appeared to be the most useful in determining genetic yield potential.

Key Words: Phalaris arundinacea L. • Yield testing • Stability parameters • Herbage yield • Dry matter yield • Forage grass breeding

1 Report of research of North Central Regional Research Project, NCR-36. A joint contribution from Northern Great Plains Research Center, USDA-SEA-AR, Mandan, ND 58554; Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55108; Dep. of Agronomy, Iowa State Univ., Ames, IA 50011; Dep. of Agronomy, Univ. of Wisconsin, Madison, WI 53706; Dep. of Agronomy, Univ. of Missouri, Columbia, MO 65211; and Dep. of Plant Science, South Dakota State Univ., Brookings, SD 57006.

2 Research geneticist, USDA-SEA-AR; professor, Univ. of Minnesota; professor, Iowa State Univ.; professor, Univ. of Wisconsin; associate professor, Univ. of Missouri; professor, South Dakota State Univ.; and assistant professor, Univ. of Wisconsin (former res. assist., Univ. of Minnesota), respectively.

Received for publication June 13, 1980.




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 © 1981 by the Crop Science Society of America.