African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12344

Full Length Research Paper

Character association and inheritance studies of different sorghum genotypes for fodder yield and quality under irrigated and rainfed conditions

Abdus Sattar Tariq1*, Zahid Akram1, Ghulam Shabbir1, Muhammad Gulfraz3, Khalid Saifullah Khan2, Muhammad Shahid Iqbal1 and Talat Mahmood1
  1Department of Plant Breeding and Genetics, PMAS-Arid Agriculture University, Rawalpindi, Pakistan. 2Department of Soil Science and Soil and Water Conservation, PMAS-Arid Agriculture University Rawalpindi, Pakistan. 3Department of Biochemistry, PMAS-Arid Agriculture University Rawalpindi, Pakistan
Email: [email protected]

  •  Accepted: 20 January 2012
  •  Published: 10 May 2012

Abstract

 

Cyanide poisoning is the major problem in sorghum fodder. This poisoning results in livestock mortality and causes economic loss to the people. Some work have been reported on quantity but little work has been focused on quality especially the cyanide content in sorghum fodder in Pakistan. Inheritance mechanism for some fodder yield and quality traits were studied among 25 sorghum genotypes under irrigated and rainfed conditions. Highly significant genotypic as well as genotype x location differences were observed for all the characters studied. Highest genotypic and phenotypic variances were observed for plant height, fresh weight plant-1, green fodder yield and total cyanide content. Green fodder yield, dry matter yield, fresh weight plant-1, dry weight plant-1 and total cyanide content depicted high heritability estimates along with high expected genetic advance. There were strong positive genotypic and phenotypic correlations between green fodder yield and number of tillers plant-1 stem thickness, fresh weight plant-1, dry weight plant-1 and dry matter yield. Strong negative genotypic and phenotypic correlations were observed between total cyanide content and number of tillers plant-1, stem thickness, fresh weight plant-1, dry weight plant-1 and green fodder yield. The present study indicates that the indirect selection and simultaneous improvement in sorghum fodder yield as well as quality is feasible because of significant relationship among traits.

 

Key words: Correlation-fodder yield-genetic advance-heritability-hydrocyanic acid, quality traits-Sorghum bicolor.