HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Chaplin, J. F. Articles by Weeks, W. W. Search for Related Content PubMed Articles by Chaplin, J. F. Articles by Weeks, W. W. Agricola Articles by Chaplin, J. F. Articles by Weeks, W. W.

Association Between Percent Total Alkaloids and Other Traits in Flue-cured Tobacco¹

The relationships between percent total alkaloids and nine agronomic and chemical traits were studied in isogenic lines derived from 10 cultivars of flue-cured tobacco (Nicotiana tabacum L.). Isogenic lines with low total alkaloids percentage (approximately 0.20%) were compared with their "normal" recurring parents (total alkaloids 1.85 to 2.70%). The differences in traits other than alkaloid levels between the low alkaloid lines and their recurrent parent should reflect physiological associations (pleiotropism) and/or genetic linkages. Yield, grade index, total N, and reducing sugar content in the low alkaloid lines were lower than in the normal flue- cured cultivars. Chlorophyll contents, at time of harvest, were higher in the low alkaloid lines than in their recurrent parent. Alkaloid levels had little or no association with plant height, leaves per plant, or days to flower.

Key Words: Nicotiana tabacum • Nicotine • Total N • Chlorophyll • Reducing sugars • Isogenic lines

² Research agronomist, Oxford Tobacco Research Laboratory, ARS-USDA, Oxford, NC 27565 and professor of crop science, N. C. State Univ., Raleigh.

³ Associate professor, Dep. of Crop Science, N. C. State Univ., Raleigh.

Received for publication October 31, 1975.