THE EFFECTS OF DIFFERENT NITROGEN LEVELS ON GRAIN PROTEIN AND THE NITROGEN USE EFFICIENCY OF WHEAT

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HOUSHMANDFAR A.R.; TEHRANI M.M.; DELNAVAZ HASHEMLOUYAN B.

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Journal: PLANT AND ECOSYSTEM Year:2008 | Volume:4 | Issue:15 Page(s): 52-62

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Information Journal Paper

Title

THE EFFECTS OF DIFFERENT NITROGEN LEVELS ON GRAIN PROTEIN AND THE NITROGEN USE EFFICIENCY OF WHEAT

Author(s)

HOUSHMANDFAR A.R. | TEHRANI M.M. | DELNAVAZ HASHEMLOUYAN B. | Issue Writer Certificate

Keywords

GRAIN PROTEINQ3

NITROGEN FERTILIZERQ2

NUEQ2

WHEATQ2

Abstract

In order to evaluate the effect of nitrogen (N) rate on the GRAIN PROTEIN content and Nitrogen Use Efficiency (NUE) of WHEAT (Triticum aestivum L.), a greenhouse experiment was conducted using a factorial in completely randomized design, in three replications. In this study, two cultivars (Pishtaz: C1 and Sepahan: C2) and six nitrogen rates (N1: 0, N2: 30, N3: 60, N4: 90, N5: 120 and N6: 150 mg N/Kg) were studied. Results showed that the grain yield, GRAIN PROTEIN content and protein yield increased significantly with increasing N fertilizer. However, there were significant reduction in NUE, N Agronomic Efficiency (NAE) and N Physiologic Efficiency (NPE) by increasing amount of N fertilizer. Pishtaz showed a higher grain yield compared to Sepahan but the protein content of Sepahan was more than Pishtaz cultivar.Also, the highest level of GRAIN PROTEIN content that was produce in this study was in N6C2 with 10.65 protein percentage.

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