000 04277nab|a22004217a|4500
001 69438
003 MX-TxCIM
005 20251222155608.0
008 202512s2025||||ne |||p|op||||00||0|eng|d
022 _a0378-4290
022 _a1872-6852 (Online)
024 8 _ahttps://doi.org/10.1016/j.fcr.2025.110172
040 _aMX-TxCIM
041 _aeng
100 1 _8001712305
_aKarwat, H.
_gGlobal Wheat Program
_917182
245 1 0 _aNitrogen dynamics and yield performance of an elite bread wheat line with BNI capacity expressed in an alkaline soil
260 _aNetherlands :
_bElsevier B.V.,
_c2025.
500 _aPeer review
520 _aWheat with biological nitrification inhibition (BNI) has demonstrated effectiveness in acidic soils. However, BNI expression under alkaline soil conditions have not been documented in field studies. Here, we present the first field-based evidence of BNI effects in alkaline soils (pH 8.6-8.7), using an elite spring wheat line (ROELFS) carrying the Lr#N short arm (+BNI) introgressed from Leymus racemosus which confers BNI activity as compared to ROELFS without the translocation arm (-BNI). BNI expression was evidenced by lower soil nitrate in three irrigated wheat trials conducted in northwestern Mexico. In one trial (Exp 1), soil nitrate levels of the translocation line (+BNI) were 24-37 % lower than in the control line (-BNI) after the second application of ammonium-N fertilizer. Reductions were observed both in the row and in the furrow. In another trial (Exp 3), the most pronounced nitrate difference occurred approximately one month after the second ammonium-N application, with nitrate levels in +BNI plots reduced by 73-77 %. The translocation line also exhibited higher flag leaf nitrate concentrations, likely associated with the decreased soil nitrate concentrations. In vitro potential nitrification rates, measured one week after ammonium-N application, were 27-32 % lower in soil associated with the +BNI line compared to the control, across two consecutive years. Phenologically, the +BNI line reached anthesis and flowering later than the control, regardless of additional N fertilization. In two experiments, grain yield did not differ significantly between +BNI and control, while in one trial it was reduced, due to fewer grains per spike and a lower spike density. The harvest index was consistently lower in +BNI than -BNI under high N input. Nevertheless, grain protein and grain N uptake and grain weight were not statistically different between the lines. We conclude that BNI can significantly reduce nitrification with a spatially and temporally impact under alkaline, high N conditions. This represents a potentially important environmental benefit for a wide range of wheat systems globally. Further research is needed to evaluate the effects of the Lr#N short arm on yield and quality in other elite lines. Additionally, potential negative effects on gluten quality from the wild donor genome should be considered in future breeding efforts.
546 _aText in English
591 _aCárdenas-Castañeda, M.E. : Not in IRS staff list but CIMMYT Affiliation
597 _dMinistry of Agriculture, Forestry and Fisheries of Japan (MAFF)
_dAgriculture and Agri-Food Canada (AAFC)
_dCGIAR Research Program on Wheat (WHEAT)
_dNovo Nordisk Foundation (NNF)
_fBreeding for Tomorrow
_uhttps://hdl.handle.net/10568/179210
650 7 _aNitrification inhibitors
_2AGROVOC
_94939
650 7 _aSpring wheat
_2AGROVOC
_91806
650 7 _aAlkaline soils
_2AGROVOC
_912125
650 7 _aNitrogen fertilizers
_2AGROVOC
_91190
650 7 _aWheat
_2AGROVOC
_91310
700 1 _aKishii, M.
_gGlobal Wheat Program
_8INT2678
_9849
700 1 _aCárdenas-Castañeda, M.E.
_940405
700 1 _a Ibba, M.I.
_8001711897
_gGlobal Wheat Program
_95836
700 1 _aKommerell, V.
_gGlobal Wheat Program
_8INT3509
_9964
700 1 _aBentley, A.R.
_8001712492
_gFormerly Global Wheat Program
_99599
700 1 _aBraun, H.J.
_gFormerly Global Wheat Program
_8INT0599
_9824
700 1 _aOrtiz-Monasterio, I.
_gFormerly Sustainable Agrifood Systems
_8INT1421
_9827
773 0 _tField Crops Research
_gv. 334, art. 110172
_dNetherlands : Elsevier B.V., 2025
_x0378-4290
_wG444314
942 _cJA
_n0
_2ddc
999 _c69438
_d69430