Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Denisa Cristiana HETEA, Simona NIȚĂ, Ștefan Laurențiu BĂTRÎNA, Ioana HÎNDA, Lucian Dumitru NIȚĂ, Florin IMBREA
The present study evaluated the effects of nitrogen form and fertilization level on the Zeleny sedimentation quality index of bread wheat (Triticum aestivum L.). A bifactorial experiment was conducted including 27 wheat cultivars and six fertilization regimes combining three nitrogen rates (120, 150, and 170 kg ha⁻¹ N) applied either as nitric or ammoniacal nitrogen, arranged in three replications. Analysis of variance revealed that cultivar, fertilization regime, and their interaction had a highly significant effect (p < 0.001) on the Zeleny index. Mean sedimentation values ranged from 44.12
to 60.94 mL among cultivars, while fertilization treatments varied between 48.31 mL under ammoniacal nitrogen and 55.93 mL under nitric nitrogen. Nitric nitrogen consistently produced significantly higher Zeleny index values compared to ammoniacal nitrogen at all fertilization levels. The fertilization regime accounted from the proportion of total variance (2.97%), followed by the cultivar × fertilization interaction (32.21%) and cultivar effect (28.46%). These results highlight the dominant role of nitrogen form in determining wheat technological quality and emphasize genotype-specific responses to fertilization strategies.
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{simplepopup popup="false" name="Citation35"}HETEA D.C., NITA S., BATRINA S.L., HINDA I., NITA L.D., IMBREA F. 2026, EFFECTS OF NITRIC AND AMMONIACAL NITROGEN FERTILIZATION ON THE ZELENY SEDIMENTATION INDEX IN COMMON WHEAT (Triticum aestivum L.). Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 284-295. {/simplepopup}