African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12486

Full Length Research Paper

Heritability and genetic gain of some morpho-physiological variables of durum wheat (Triticum turgidum var. durum)

Danail Kahrizi1,2*, Kianoosh Cheghamirza1,2, Mehdi Kakaei3, Reza Mohammadi4 and Abdolghafar Ebadi5
1Department of Agronomy and Plant Breeding, Razi University, Kermanshah, Iran. 2Biotechnology Department, Drought Resistance Center, Razi University, Kermanshah, Iran. 3Department of Plant Breeding, Payame Noor University, Center of Asadabad, Iran. 4Dryland Agricultural Research Institute (DARI), P.O. Box 67145-1164, Kermanshah, Iran. 5Department of Biological Sciences, Islamic Azad University, Jouybar branch, Jouybar, Iran.
Email: [email protected], [email protected], [email protected].

  •  Accepted: 21 June 2010
  •  Published: 31 July 2010

Abstract

The purpose of this work is to estimate genetic variability parameters and relationship among 11 agro-physiological traits studied on 18 experimental durum wheat and two checks under rainfed condition. The studied traits included the grain yield (YLD), plant height (PH), number of tiller per plant (NT), peduncle length (PL), flag length (FL), leaf dry weight (LDW), stem dry weight (STW), spike dry weight (SPW), spike height (SH), leaf area index (LAI), crop growth rate (CGR), relative growth rate (RGR), leaf area ratio (LAR) and net assimilation rate (NAR). Analysis of variance showed a significantly variation among genotypes for the characters PH, NT, PL, FL, LDW, STW, SPW, SH, LAR and NAR. High correlations were found among the PL, LDW, STW, SPW, LAR and NAR. Heritability estimates were high for PH, PL, LDW, STW and NAR. High genetic gains were observed for YLD, NT, PL, LDW, STW, SPW, LAR and NAR.

 

Key word: Genetic parameters, genetic advance, durum wheat.

Abbreviation

PH, Plant height; NT, number of tiller; PL, peduncle length; FL, flag leaf length; NS, number of spike per plant; LDW, leaf dry weight; STW, stem dry weight; SPW, spike dry weight; LAI, leaf area index; CGR, crop growth rate; RGR,relative growth rate; LAR, leaf area ratio; NAR, net assimilation rate; LAD, leaf area duration; YLD, grain yield; h2, heritability; GG, genetic gain; SH, spike height.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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