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


     

Published online 1 January 1966
Published in Agron J 58:35-38 (1966)
© 1966 American Society of Agronomy
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 Ligon, J. T.
Right arrow Articles by Benoit, G. R.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Ligon, J. T.
Right arrow Articles by Benoit, G. R.
Agricola
Right arrow Articles by Ligon, J. T.
Right arrow Articles by Benoit, G. R.

Morphological Effects of Moisture Stress on Burley Tobacco1

J. T. Ligon and G. R. Benoit2

The effects of moisture stress, brought about by increased levels of soil moisture tension, on the morphological development of greenhouse-grown burley tobacco plants were studied during the summers of 1963 and 1964. The tobacco plants were transplanted into cans (one plant per can) containing 160 pounds (oven dry basis) of Maury silt loam. The moisture treatments were, 1, to maintain the soil near 100% of available water, and 2, 3, 4, and 5, to return the soil to field capacity when the moisture decreased to 75, 50, 25, and 0% of available water. These percent available water values correspond to tension values of 0.25, 0.42, 0.96, 3.50 and 15 atmospheres, respectively. The results show that increased soil moisture tension resulted in decreases in total leaf area development, rate of leaf area development, and total dry weight of leaves (for treatments 3, 4, and 5). Irrigation of stressed plants resulted in increased growth rates which did not exceed the normal rates of continually nonstressed plants except as the nonstressed plants approached maturity. In addition, increased moisture tension delayed maturity, decreased quality, reduced stalk weight, and increased the ratio of leaf weight to stalk weight.

1 Contribution (65-2-36) of the Agricultural Engineering Department and Agronomy Department, Kentucky Agricultural Experiment Station, and published with approval of the Director of the Experiment Station.

2 Assistant Professors of Agricultural Engineering and Agronomy, respectively, Agricultural Engineering Department and Agronomy Department, University of Kentucky, Lexington.

Received for publication May 14, 1965.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Crop Science 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 © 1966 by the American Society of Agronomy.