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 McMurphy, L. M. Articles by Rayburn, A. L. Search for Related Content PubMed Articles by McMurphy, L. M. Articles by Rayburn, A. L. Agricola Articles by McMurphy, L. M. Articles by Rayburn, A. L.

Lack of Relationship between Relative Maturity and Genome Size in Hybrid Maize

Dep. of Agronomy, 1102 S. Goodwin Ave., Univ. of Illinois, Urbana, IL 61801

*Corresponding author.

Correlations between genome size and area of geographic adaptation have been reported in maize (Zea mays L.). Such correlations have been suggested to occur due to lower genome sizes being more favorable where shorter growing seasons exist. The objective of this study was to determine if genome size and relative maturity are correlated in hybrid maize. Thirty hybrids, obtained from Pioneer Hi-Bred International, Inc. (Johnson, IA), were analyzed. Genome size determinations were made using flow cytometric techniques. No correlation between genome size and relative maturity was observed. Since the area of adaptation of these hybrids encompasses a wide range of latitudes, there appears to be no correlation between genome size and latitude as well. The lack of correlations among these characters may result from the breeding structure of hybrid maize.

Received for publication February 20, 1990.