Volume 10, Issue 4 (1-2021)                   JCPP 2021, 10(4): 83-98 | Back to browse issues page


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Fatholahi S, Ehsanzadeh P, Karimmojeni H. Nitrogen Remobilization and N-P-K Concentration of Wheats of Different Ploidy Levels Respond Differently to Nitrogen Supply. JCPP. 2021; 10 (4) :83-98
URL: http://jcpp.iut.ac.ir/article-1-2997-en.html
Isfahan University ot Technology , ehsanzadehp@gmail.com
Abstract:   (361 Views)
Relationship of nitrogen (N) supply to nitrogen remobilization and leaf and grain P, K, and N status of wheat lacks clarity. The present pot experiment was conducted to evaluate nitrogen remobilization and leaf and grain P, K, and N status of ancient wheats of different ploidy levels in response to nitrogen. The experiment was carried out in Fall 2017-Spring 2018 at the Isfahan University of Technology, Isfahan, Iran. The experiment was designed as a 3-replicate factorial completely random design with N fertilization treatment (at four levels of 0, 18.66, 37.33, and 56 mg N kg-1 soil) and genotype (consisting of 12 genotypes) as experimental factors. Nitrogen remobilization of the ancient and hulled wheats were increased when exposed to the low and medium N supplies. However, the Nitrogen remobilization of the standard durum and bread wheats were increased with increases in the N supply.  Leaf and grain P, leaf N, and grain K concentrations responded positively to the N supply and ancient and hulled wheats equaled or exceeded those of the improved wheats particularly when grown in the absence of high N supplies. The presented data indicates that in conditions of nitrogen deficiency, the ancient wheats outperform improved wheats in terms of absorption and utilization of macronutrients.
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Type of Study: Research | Subject: General

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