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 Liang, G. H. L. Articles by Casady, A. J. Search for Related Content PubMed Articles by Liang, G. H. L. Articles by Casady, A. J. Agricola Articles by Liang, G. H. L. Articles by Casady, A. J.

Interrelations Among Agronomic Characters in Grain Sorghum (Sorghum bicolor Moench)¹

Genotypic and phenotypic correlations among 12 characters were estimated in segregating populations and in pure lines of grain sorghum (Sorghum bicolor Moench). Grain yield was positively and significantly correlated with head weight, kernel number, half bloom date, and leaf number, but negatively correlated with germination percentage and protein percentage. The inverse relationships between kernel weight and kernel number, and between kernel weight and head number per plant may arise from developmentally induced relationships or be genetically dependent. Head weight and half bloom date are considered best indicators for yield, while germination percentage may be of value as an indicator for protein content. Magnitudes of the estimates of expected progress in improving yield by selecting for characters other than yield appear to be greater than those for protein, indicating that direct selection for protein may be more effective in improving protein content.

Key Words: Genotypic and Phenotypic correlations

² Assistant Professors, Kansas State University, Manhattan 66502, and Research Agronomist, Crop Research Division, ARS, USDA, and Kansas State University, respectively.

Received for publication September 11, 1968.