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 HighWire Citing Articles via Google Scholar Google Scholar Articles by Matzinger, D. F. Articles by Wernsman, E. A. Search for Related Content PubMed Articles by Matzinger, D. F. Articles by Wernsman, E. A. Agricola Articles by Matzinger, D. F. Articles by Wernsman, E. A.

Four Cycles of Mass Selection in a Synthetic Varie.ty of an Autogamous Species Nicotiana tabacum L.¹

A heterogeneous population was created by forming an eight-line flue-cured tobacco hybrid followed by three generations of controlled randomm ating. Four cycles of mass selection for increased green weight of leaves employed selection of parent plants prior to pollination. Random paired crosses amongt hese, selected plants enabled selection to be practiced on both male and female parent contribution to the next generation. A linear increase of 44 grams/plant of green leaves/cycle was obtained which agrees closely with expectations. Average correlated responses were in good agreement with expectations; however, many were not linear throughout the four cycles. The results of this study demonstrate the utility of heterogeneous populations, the importance of maximizing genetic recombination, and the usefulness of masss election as a selection procedurei n a self-pollinating species

Key Words: tobacco • realized heritability • correlated response • genetic recombination

² Professor of Genetics and Assistant Professor of Crop Science, North Carolina State University, Raleigh, N. C. 27607.

Received for publication October 13, 1967.

This article has been cited by other articles:

				R. S. Lewis Identification of Germplasm of Possible Value for Confronting an Unfavorable Inverse Genetic Correlation in Tobacco Crop Sci., June 20, 2006; 46(4): 1764 - 1771. [Abstract] [Full Text] [PDF]