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 9:584-586 (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 Baskin, J. M.
Right arrow Articles by West, S. H.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Baskin, J. M.
Right arrow Articles by West, S. H.
Agricola
Right arrow Articles by Baskin, J. M.
Right arrow Articles by West, S. H.

Seed Dormancy in Two Species of Digitaria from Africa1

Jerry M. Baskin, S. C. Schank and S. H. West2

Dormancy in seeds of Digitaria milanjiana (Rendle) Stapf and D. pentzii Stent was investigated by germination tests in the laboratory over a 12-month period. By using intact, dehulled, clipped and chemically treated seeds, dormancy was found to be due to the need for a period of after-ripening in dry storage and to effects exerted by palea aml lemma. The caryopsis itself after-ripens upon storage for 4 to 5 months, and removal of palea and lenmm from 4- to 5-month-old caryopses results in almost complete germination. Good germination can be obtained in seeds stored for shorter periods of time either by removing the seed coat, pericarp and endosperm or by treating dehulled seeds with gibberellic acid.

Key Words: Gramineae • Gibberellic acid • Atfer-ripening • Caryopsis storage

1 Cooperative investigations at Gainesville, Fla., of the Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, and the Department o[ Agronomy, Institute of Food and Agricultural Sciences. Florida Agricultural Experiment Stations Journal Series No. 3179.

2 Assistant Professor of Botany, University of Kentucky, Lexington 40506; Associate Agronomist, Florida Agricultural Experiment Station, Gainesville 32601; and Plant Physiologist, ARS, USDA, Gainesville, Fla. 32601.

Received for publication February 8, 1969.




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