Genetic variation for the efficiency of nitrogen uptake and use in Bread wheat cultivars of Iran and Azerbaijan
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 21
Abstract
Due to economic and environmental concerns, development of cuttivars that absorb and use nitrogen more efficiently is becoming an important objective of plant breeding programmes. In order to assess the feasibility of breeding such cultivars, genetic variation for nitrogen uptake and use efficiency was studied in 20 bread wheat cultivars of Iran and Azerbaijan, in the centre of origin and diversity. The selected cultivars were evaluated for yield and quality characteristics and nitrogen use indices under 0 and 200 kg ha-1 of nitrogen application at Moghan, North Western Iran, during 2007- 2009. High levels of variation were observed among genotypes for recorded traits under both nitrogen application treatments. Genotype×nitrogen interaction effect was significant for all characters, except for nitrogen use efficiency (NUE) of grain dry weight (NUEgdw). Cultivars Girmizigul-1, Azamatli-95, Chamran and Koohdasht produced the hightest grain yield under zero nitrogen application . NUE was determined by the yield and concentration of nitrogen in grain and stable. Under N0kg treatment, the contribution of grain yield (79%) to total nitrogen yield was higher than that of grain nitrogen concentration (21%), while under N200kg treatment the trend was different. The contribution of grain nitrogen concentration (55%) was relatively higher than grain yield (45%). Cultivars Gobustan, Girmizigul-1, Azamatli-95, Chamran and Koohdasht showed the highest NUE. Nitrogen uptake efficiency was a critical factor in both nitrogen application treatments. tIt contributed to 79% and 58% of the variance at N0 and N200kg, respectively. Based on these observations both high grain yield and high N uptake efficiency can be considered as two important criteria for selection of high NUE in in wheat. Cultivars Gobustan, Koohdasht and Chamran showed the highest performance for these characteristics.
Authors and Affiliations
Gh. Khalilzadeh, A. R. Eivazi, J. Mozaffari, Y. Arshad
Keywords
Related Articles
- EP ID EP32417
- DOI -
- Views 318
- Downloads 0
Effect of Water Deficiency Stress on Yield and Yield Component of Sunflower Cultivars in Isfahan
The experiment was investigated to evaluation the effect of water deficit on yield and yield components of sunflower cultivars in 2012 in Isfahan region. Experiment was conducted in split plot and designed in randomize...
Determining relationships among seed yield and some yield components using correlation, regression and path analysis in canola (Brassica napus L.)
Determination of the traits affects seed yield is very efficient in breeding of this trait in canola (Brassica napus L.). Seed yield is the quantitative trait that direct selection per se isn’t effective for improvemen...
Productivity of Grain Maize Hybrids With Different Vegetation Period in The Conditions of Dobroudja and Thrace, Bulgaria
The experiments have been carried out in two regions – Dobroudja, North Bulgaria and Thrace, South Bulgaria. The study included six hybrids with different vegetation period - Victoria, Anjou 292, Ademio, Agrister and C...
Genetical diversity analysis of Iranian Fusarium oxysporum f.sp. melonis by PCR - RAPD marker
Fusariums wilt of melon, Fusarium oxysporum f.sp. melonis is one of the most important diseases, causing tremendous losses in melon growing areas in Iran. Searching for resistant sources needs detail knowledge of the p...
Evaluation of Trance Minerals Zinc, Copper, Cobalt, Selenium and Iron In Lamb Grazing Area Bahar of Hamedan
Lowly-used mineral elements are highly necessary for livestck body and their deficiency leads to a variety of problems including decrease in growth, reproduction problems, anemia, decreased reproductivity, and even dea...