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


     

Published in Crop Sci 11:580-582 (1971)
© 1971 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 Cheng, A. L. S.
Right arrow Articles by Chaplin, J. F.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Cheng, A. L. S.
Right arrow Articles by Chaplin, J. F.
Agricola
Right arrow Articles by Cheng, A. L. S.
Right arrow Articles by Chaplin, J. F.

Leaf Characteristics of Four Flue-Cured Tobacco Varieties According to Stalk Positions. I. Phytosterols and Petroleum Ether Extracts1

Amber L. S. Cheng2, T. C. Tso2 and James F. Chaplin3

Phytosterol content and petroleum ether extracts varied in leaves from various stalk positions of three flue-cured tobacco (Nicotiana tabacum L.) varieties and one breeding line, ‘Coker 139,’ ‘SC 58,’ ‘NC 95,’ and LN 38. These varieties differ widely in alkaloid content. Petroleum ether extracts were not associated with alkaloid content. Phytosterol content of leaves of various stalk positions exhibited the same general distribution patterns among different varieties, while petroleum ether extracts exhibited the same general distribution patterns in three varieties but not in LN 38. Four phytosterol fractions, including cholesterol, campesterol, ß-sitosterol, and stigmasterol, were determined. Cholesterol and campesterol were fairly constant in leaves of various stalk positions; however, an increase of ß-sitosterol and a decrease of stigmasterol in leaves from bottom to top stalk positions was noted.

Key Words: Nicotiana tabacum L. • Cholesterol • Stigmasterol • Campesterol • ß-sitosterol

1 Contribution from the Plant Science Research Division, Agricultural Research Service, U. S. Department of Agriculture and North Carolina State University, Agricultural Experiment Station, Raleigh, N. S. Paper No. 3376 of the Journal Series of the North Carolina State University and Agricultural Experiment Station, Raleigh, N. C.

2 Research Chemist and Plant Physiologist, PSRD, ARS, U. S. Department of Agriculture, Beltsville, Md. 20705.

3 Research Agronomist, PSRD, ARS, U. S. Department of Agriculture, Oxford, N. C. 27565, and Professor of Crop Science, North Carolina State University, Raleigh.

Received for publication February 1, 1971.




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 © 1971 by the Crop Science Society of America.