African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Inheritance of various yield contributing traits in maize (Zea mays L.) at low moisture condition

Muhammad Ahsan
  • Muhammad Ahsan
  • Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Pakistan.
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Amjad Farooq
  • Amjad Farooq
  • Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Pakistan.
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Ihsan Khaliq
  • Ihsan Khaliq
  • Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Pakistan.
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Qurban Ali
  • Qurban Ali
  • Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Pakistan.
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Muhammad Aslam
  • Muhammad Aslam
  • Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Pakistan.
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Muhammad Kashif
  • Muhammad Kashif
  • Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Pakistan.
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  •  Accepted: 09 January 2013
  •  Published: 06 February 2013

Abstract

 

Six maize inbred lines were selected on the basis of their overall performances in preliminary screening. They were subjected to complete diallel analysis for various physio-genetic parameters under water deficit conditions. There were highly significant (P<0.01) differences for all parameters, except leaf venation, among the inbred lines and their possible crosses. All traits showed additive gene action, except stomatal frequency and stomata size, which showed complete dominance and over-dominance respectively. The strength of dominant and recessive genes for each trait was found different in each inbred. The narrow and broad sense heritabilities for the traits under study ranged between 35 to 80 and 32 to 78% respectively. However, stomata frequency and size might be useful while selecting maize inbred lines for hybrid seed production under limited water conditions and all other traits might be used while selecting inbred lines for synthetic genotype development.

 

Key words: Drought, corn, stress breeding, gene action, physiology.