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 23:369-371 (1983)
© 1983 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 Bryson, C. T.
Right arrow Articles by Parrott, W. L.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Bryson, C. T.
Right arrow Articles by Parrott, W. L.
Agricola
Right arrow Articles by Bryson, C. T.
Right arrow Articles by Parrott, W. L.

Frequency of Pigment Glands and Capitate and Covering Trichomes in Nascent Leaves of selected Cottons1

Charles T. Bryson, Jack C. McCarty, Jr., Johnie N. Jenkins and W. L. Parrott2

Twenty-nine cotton strains, Gossypium hirsutura L., were evaluated to assess potential physical and chemical barriers confronting Heliothis ovipnsltion and feeding in relationship to the frequency of pigment glands and covering and capitate trichomes on the laminae of nascent terminal leaves. Significant differences were found among strains for each of the structures, with a two-fold difference in the number of pigment glands among glanded strains, a two-fold difference in capitate trlchomes, and a range of 0 to >1500 covering trichomes per cm2. Frequencies of covering trlchomes between adaxial and abaxial surfaces were significantly different among strains. The frequencies of glands and of the two types of trlchomes seemed to be independent of each other. Of the structures studied, only the density of glands had any influence on Heliothis larval growth. The number of pigment glands per cm2 of leaf tissue was negatively correlated with larval weight after five days of feeding.

Key Words: Gossypium hirsutum L. • Heliothis virescens (F.)

1 Contribtuion of USDA, ARS in Cooperation with Mississippi Agric. and Forestry Exp. Stn., Journal article No. 5195 of the Mississippi Agric. and Forestry Exp. Stn.

2 Agricultural research technician (presently research botanist, Southern Weed Science Laboratory, Stoneville, MS 38776), research agronomist, research geneticist, and research entomologist, respectively. Crop Science Research Laboratory, P.O. Box 5367, Mississippi State, MS 39762.

Received for publication May 21, 1982.




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 © 1983 by the Crop Science Society of America.