Journal of
Plant Breeding and Crop Science

  • Abbreviation: J. Plant Breed. Crop Sci.
  • Language: English
  • ISSN: 2006-9758
  • DOI: 10.5897/JPBCS
  • Start Year: 2009
  • Published Articles: 409

Full Length Research Paper

Combining ability studies of pigeonpea cytoplasmic male sterile (CMS) lines with an obcordate leaf marker

S. B. Patil
  • S. B. Patil
  • Grain Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India.
  • Google Scholar
A. J. Hingane
  • A. J. Hingane
  • Grain Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India.
  • Google Scholar
C. V. Sameerkumar
  • C. V. Sameerkumar
  • Grain Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India.
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M. Myer
  • M. Myer
  • Grain Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India.
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R. Vijaya Kumar
  • R. Vijaya Kumar
  • Grain Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India.
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K. B. Saxena
  • K. B. Saxena
  • Grain Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India.
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  •  Received: 24 July 2014
  •  Accepted: 24 July 2014
  •  Published: 31 July 2014

Abstract

Hybrid pigeonpea [Cajanus cajan (L.) Millsp.] breeding technology based on cytoplasmic male sterile (CMS) was recently developed in India. A program was initiated to track the purity of female parental lines by incorporating an obcordate leaf shape marker in established male sterile A-lines. Seven obcordate A-lines developed by backcrossing and selection were crossed with four known fertility restorers in line x tester mating design to study their general and specific combining ability. Higher magnitude of specific combining ability (SCA) effect showed that, hybrid yield was under the control of non-additive genes. Among A-lines, ICPA 2204 was the best general combiner. Among testers, ICPL 20116 was the best general combiner. Among hybrids, ICPA 2208 x ICPL 20108 a cross between high general combining ability (GCA) parents was the best with positive significant SCA effect and higher mean performance for grain yield, 100-seed mass, number of seeds/pod and resistance to fusarium wilt disease. The success of this technology will help to address the issue of seed purity to some extent.

 

Key words: Combining ability, line × tester, general combining ability (GCA) and specific combining ability (SCA), obcordate leaf shape, pigeonpea.