Genetic variability and correlation of stalk yield related traits and sugar concentration of stalk juice in a sweet sorghum (Sorghum bicolor L. Moench) population

Zou, G. and et al, . (2011) Genetic variability and correlation of stalk yield related traits and sugar concentration of stalk juice in a sweet sorghum (Sorghum bicolor L. Moench) population. Australian Journal of Crop Science, 5 (10). pp. 1232-1238.

[img]
Preview
 PDF - Published Version
| Preview

Abstract

The productivity of sweet sorghum (Sorghum bicolor L. Moench) ， a raw material for ethanol production ， is mainly determined by stalk yield and sugar content. To understand inherent differences and relationship between stalk yield related traits and sugar concentration of stalk juice, a large recombinant inbred (RI) population derived from a grain sorghum × sweet sorghum was grown in three different trials. Seven stalk yield related traits including heading date (HD), plant height (PH), harvested stem length (HSL), number of nodes (NN), stem diameter (SD), panicle length (PL) and panicle neck length (PNL), along with sugar concentration (SC) of stalk juice were evaluated. Significant differences among genotypes were observed for all measured traits. A large proportion of the phenotypic variance for PH, HSL, PL and SC was attributed by genotypic variance. Highest ratio of genotype × environment (G × E) interaction variance to phenotypic variance was observed for SD. Moderate proportion of phenotypic variances for HD, NN and PNL were explained by genotypic variances. Both the magnitude and direction of correlation coefficients among the traits measured were varied in different trials. PH, HSL and NN had consistently positive and significant correlation with SC. PNL had no significant correlation with SC in all three trials. HD, SD and PL had no consistently significant correlations with SC in three trials. Information obtained from this study is very helpful to further understand the genetic mechanism of stalk yield related traits and sugar concentration of stalk juice in this RI population.

Item Type: Article
Uncontrolled Keywords: Correlation; Genetic variability; Recombinant inbred population; Sorghum bicolor L. Moench; Stalk yield related traits; Sugar concentration; Sweet sorghum.
Author Affiliation: 1State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China 2Chinese National Sorghum Improvement Center, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
Subjects: Crop Improvement
Divisions: Sorghum
Depositing User: Mr. SanatKumar Behera
Date Deposited: 11 Mar 2012 11:17
Last Modified: 11 Mar 2012 11:18
Official URL: http://www.cropj.com/september2011.html
URI: http://eprints.icrisat.ac.in/id/eprint/3760

Actions (login required)

View Item View Item
EPrints Logo
eprints is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.