IDENTIFYING SUPERIOR WHEAT LINES IN PARTICIPATORY WITH EXTENSION-RESEARCHES
Journal Title: Romanian Journal of Biology - Plant Biology - Year 2018, Vol 63, Issue 1
Abstract
Receiving high and stable grain yield in different environments is one of the aims in cereal breeding programs. In order to compare the results of station-researches under on-farm conditions, it is necessary carrying out extension-research projectes to receive high grain yield and introduction lines with superior characteristics. In this study, “CD- 92-5” (Lufer-1/Kinaci97) and “CD-92-6” (Guam92//Psn/Bow/3/Thk// 4141W113/Karl) as promising lines and “Mihan” (Bkt/90-Zhong87) and “Haydari” (Ghk“s”/ Bow“s”//90Zhong87/3/Shiroodi) as control cultivars sown under irrigated and on-farm conditions in Bukan, Nagadeh, Oshnavieh and Miandoab regions north west of Iran. Planted area for each genotype at per location was 5000m2. Land preparation and sowing were accomplished according to common regions under on-farm conditions. Seeding rate was based on 1000-kernal weight with 450 seed/m2 and fertilizer application was based on recommendation of soil and water department according to soil test. Simple and combined analyses of variance showed significant differences for ten measured traits (p ≤ 0.05). “CD-92-5” and “CD-92-6” promising lines had the Minimum and Maximum variance and standared error within plots for traits of grain yield and total dry matter, respectively. Range of heritibility with 45% and 85% was allocated for traits of 1000-kernal weight and spike per square meter. “CD-92-5” with the highest grain yield (306 g/m2) was identified as stable genotype based on Equivalance-Rig, Finley and Wilkinson and genotypic coefficient variation indices. Total dry matter and spike weight had positive significant correlations with grain yield at four regions of Bukan, Nagadeh, Oshnavieh and Miandoab. Therefore, these traits can be used as indirect criteria for increasing grain yield in breeding programs.
Authors and Affiliations
ALI REZA EIVAZI, MOHAMMAD REZAEI, ROGYHE ABDOLAZIMAZDEH
Keywords
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IDENTIFYING SUPERIOR WHEAT LINES IN PARTICIPATORY WITH EXTENSION-RESEARCHES
Receiving high and stable grain yield in different environments is one of the aims in cereal breeding programs. In order to compare the results of station-researches under on-farm conditions, it is necessary carrying out...