INTER-RACIAL HETEROSIS IN MAIZE HYBRIDS

Authors

  • M Iqbal Department of Plant Breeding and Genetics, NWFP Agricultural University, Peshawar, Pakistan H.No.353A, Sec. G-7/3-3, Islamabad, Pakistan
  • M Saleem Department of Plant Breeding and Genetics, NWFP Agricultural University, Peshawar, Pakistan
  • 0 Rashid Department of Plant Breeding and Genetics, NWFP Agricultural University, Peshawar, Pakistan

Keywords:

Maize hybrids, Zea mays L, Heterosis, Combining ability.

Abstract

Seventy-seven single cross maize hybrids alongwith four checks were evaluated at the NWFP Agricultural University
Peshawar Research Farm during Khanf 1997 to determine the magnitude of heterosis and combining ability in elite
mbred Imes and to identify hybnds for commerci~l production. Hybrids CMIAO x SY8-2 and K305 x CML66 produced
the highest gram YIeldsof 3995 and 3837 kg ha showing 19% and 14% heterosis, respectively, over the best check
Cargill 707. The top YI~ldmghybrids had desirable plant heights (ranging 132-166 ern) and were observed in maturity
(97-100 days) at par WIth the local check vaneties. Inbred hnes CML-40 and CML-66 were identified as good general
combiners for gram Yieldwhile NC-298 and SW 49-2 showed good specific combining ability for the same trait.

Downloads

Published

2001-08-20

How to Cite

Iqbal, M., Saleem, M., & Rashid, . (2001). INTER-RACIAL HETEROSIS IN MAIZE HYBRIDS. Biological Sciences - PJSIR, 44(4), 239–243. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/1934

Issue

Vol. 44 No. 4 (2001): Pakistan Journal of Scientific and Industrial Research

Section

Articles