ISSN 2375-0693
African Journal of Agricultural Economics and Rural Development ISSN 2375-0693 Vol. 2 (6), pp. 001-004, March, 2014. © International Scholars Journals
Full Length Research Paper
Genetic parameters of some morphological and physiological traits in durum wheat genotypes (TRITICUM DURUM L.)
Varahram Rashidi
Faculty of Agriculture, Islamic Azad University, Tabriz Branch, Iran. E-mail: [email protected]. Tel: +98 914 111 3965. Fax: +98 411 637 4511.
Accepted 21 February, 2014
Abstract
In order to estimate the genetic parameters of some morphological and physiological traits in durum wheat, a simple lattice experimental was carried out by using 58 advanced lines and 6 landraces for two years during 2006 to 2008 at the Agriculture Research Station of Islamic Azad University, Tabriz Branch, Iran. In this investigation traits like plant height, stomatal resistance, stoma-density and stoma-dimension in under and over surface of flag leaf; flag leaf area, number of fertile tiller, number of grains/spike, 1000-grain weight, grain yield, biomass, and harvest index were measured. Combined analysis of data for two years showed that there were significant differences, for the traits among the genotypes under study at 1% probability level. Phenotypic correlation coefficients between traits revealed a significant and positive relationship of grain yield with traits such as number of fertile tiller, grains/spike, biomass and harvest index. Estimates of GCV (genetics coefficient variance) showed that, stoma-density and stoma-dimension in under and over surface of flag leaf; grains/spike and grain yields were high, as compares other traits. Also estimates of broad sense heritability showed that, traits such as plant height, stomatal resistance, stoma-density and stoma-dimension in under and over surface of flag leaf; and grains/spike were high, as compares other traits; but for traits like grain yields, biomass, harvest index and number of fertile tiller was moderate.
Key words: Durum wheat, genetic variance, genetic coefficient variance, broad sense heritability.