title: Analysis of morphological trait and yield components of mutant wheat under different levels of nitrogen.
abstract: In order to evaluate the reaction of yield and yield components of wheat's mutant lines to different levels of nitrogen in the crop year of 2006-2007, an experiment was conducted as factorial based on completely randomized block design in 4 replicates in the Research Farm of Agricultural, Medical and Industrial Research School in Zaferaniyeh-Karaj-Iran the first factor included 5 genotypes of wheat (Tabasi-the maternal entity, T-65-7-1, T-65-5-1, T-6-67-60, T-65-58-8) and the second factor consisted of 4 levels of nitrogen (100, 140, 180 and 220 kg ha(-1) urea 46%). The result showed that grain's yield harvest index, number of grain/spike in mutant lines and their parent had significant difference (p < 0.01) in mutant genotypes, meanwhile, the biological yield and the number of spike m2 were not significant difference (p < 0.05). The harvest index, number of grains per spike, grain's yield, biologic yield and number of spikes m(-2), weight of 1000 grains didn't affected by applying different levels of nitrogen fertilizer.
authors.affiliation: Department of Agronomy and Plant Breeding, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
authors.forename: Saghar Rasaei
authors.initials: SR
authors.lastname: Moakhar
authors.forename: B Naserian
authors.initials: BN
authors.lastname: Khiabanii
authors.forename: I
authors.initials: I
authors.lastname: Amini
authors.forename: M R
authors.initials: MR
authors.lastname: Ardakani
authors.forename: H
authors.initials: H
authors.lastname: Pirdashti
authors.forename: S
authors.initials: S
authors.lastname: Ghorbani
mesh_terms: D000383:Agriculture / Q000379:methods; D018556:Crops, Agricultural / Q000033:anatomy & histology / Q000235:genetics; D002523:Edible Grain / Q000235:genetics; D005306:Fertilization; D005308:Fertilizers; D017343:Genes, Plant; D005838:Genotype; D009154:Mutation; D009584:Nitrogen / Q000378:metabolism*; D010641:Phenotype; D014908:Triticum / Q000235:genetics* / Q000502:physiology
chemical_list: D005308:Fertilizers; D009584:Nitrogen