Zou, G. and Yan, S. and Zhai, G. and Zhang, Z. and Zou, J. and Tao, Y. (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.
|
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: | Genetic variability; Recombinant inbred population; Sorghum bicolor L. Moench; Stalk yield related traits; Sugar concentration; Sweet sorghum. |
| Author Affiliation: | State 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 |
| Subjects: | Plant Production Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 09 Feb 2013 13:54 |
| Last Modified: | 09 Feb 2013 13:54 |
| Official URL: | http://www.cropj.com/zou_5_10_2011_1232_1238.pdf |
| URI: | http://eprints.icrisat.ac.in/id/eprint/9534 |
Actions (login required)
 |
View Item |
