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

Selection and breeding experiments at the haploid level in maize (Zea mays L.)

Rotarenco Valeriu1,2*, Dicu Georgeta1, Mihailov Mihail2 and State Daniel3
  1Procera Genetics, Muncii 47, Fundulea, Calarasi, 915200, Romania. 2Institute of Genetics and Physiology of Plants, Padurii 20, Chisinau, MD-2002, Republic of Moldova. 3Procera Agrochemicals Ltd, Muncii 47, Fundulea, 915200, Calarasi, Romania.
Email: [email protected]

  •  Accepted: 29 February 2012
  •  Published: 15 March 2012

Abstract

 

Selection at the haploid level allows increasing the efficiency of recurrent selection procedures. After four cycles of a recurrent selection approach involving haploid plants, grain yield of a synthetic population, SPC4, was at the same level as that of current commercial hybrids. The SPC4 population had a good performance in comparison with 27 synthetic populations obtained from Iowa State University. Transgressive segregation for plant height and ear length was revealed at the haploid level in two single crosses. It was demonstrated that the utilization of haploid plants to identify, create and improve elite breeding material might be very efficient.

 

Key words: Zea mays, haploids, recurrent selection, synthetic populations, hybrids, transgressive segregation.