000 04403nab|a22005297a|4500
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022 _a1664-462X (Online)
024 8 _ahttps://doi.org/10.3389/fpls.2025.1568461
040 _aMX-TxCIM
041 _aeng
100 1 _aKrupnik, T.J.
_gSustainable Agrifood Systems
_8INT3222
_9906
245 1 0 _aEarly sowing enhances genotypic performance in mitigating the risk of wheat blast-induced yield loss :
_bevidence from a 23-year simulation study in Bangladesh
260 _aSwitzerland :
_bFrontiers Media,
_c2025.
500 _aPeer review
500 _aOpen Access
520 _aWheat is a crucial staple crop in South Asia and faces increasing risks due to interconnected agronomic and climate-related pressures. Wheat blast, caused by Magnaporthe oryzae pathotype Triticum (MoT), presents a persistent threat to wheat production in the region. This study evaluates its impact by analyzing the effects of sowing dates and wheat varieties on irrigated wheat grain yield in Bangladesh, where MoT was first identified in South Asia. A generic disease model (GDM), parameterized to reflect the disease's characteristics, was used to simulate wheat blast inoculum build-up. The GDM incorporates temperature, relative humidity, and precipitation data to model the fungal life cycle and disease progression. The wheat crop simulation model, DSSAT-Nwheat, was integrated with the GDM to simulate MoT's life cycle. This coupled model has been embedded into the Geospatial Crop Modeling and Decision Support Tool (GSSAT) to enhance agricultural decision-making. Using a primary dataset for validation and NASA Power reanalysis weather data, the simulated effects of wheat blast on wheat grain yield were analyzed across five sowing dates and four varieties in Bangladesh over a 23-year period from 2001 to 2023. The results indicate that late sowing leads to lower yields and higher disease incidence due to increased atmospheric moisture and temperature. Both model simulations and primary data demonstrated that varietal resistance to wheat blast can significantly mitigate yield losses of wheat. However, in southern Bangladesh, where weather conditions favor the disease, even the most resistant variety, BARI Gom 33, showed yield reductions resulting from wheat blast. These findings highlight the need for long-term breeding programs to develop cultivars suited to hot, humid conditions with high disease pressure, alongside short-term agronomic practices that minimize disease risk through sowing in optimum dates and less susceptible cultivars in Bangladesh.
546 _aText in English
591 _aCunha Fernandes, J.M. : No CIMMYT Affiliation
591 _aMd. Harun-Or-Rashid : Not in IRS staff list but CIMMYT Affiliation
591 _aStuerz, S. : No CIMMYT Affiliation
597 _bTransforming Agrifood Systems in South Asia
_dUnited States Agency for International Development (USAID)
_dBill & Melinda Gates Foundation (BMGF)
_dCereal Systems Initiative for South Asia (CSISA)
_dCGIAR Trust Fund
_fScaling for Impact
_uhttps://hdl.handle.net/10568/177613
650 7 _aPyricularia oryzae
_2AGROVOC
_919835
650 7 _aBiotic stress
_2AGROVOC
_97593
650 7 _aYield losses
_2AGROVOC
_96242
650 7 _aCrop modelling
_2AGROVOC
_92623
650 7 _aWheat
_2AGROVOC
_91310
651 7 _aBangladesh
_2AGROVOC
_91424
700 1 _aCunha Fernandes, J.M.
_8001713392
_gSustainable Agrifood Systems
_914316
700 1 _aPavan, W.O.
_98187
700 1 _aBerton Ferreira, T.
_8001712776
_gFormerly Sustainable Agrifood Systems
_919053
700 1 _8001710201
_aPequeno, D.N.L.
_gSustainable Agrifood Systems
_96381
700 1 _aHoogenboom, G.
_94150
700 1 _aCovert, V.L.
_940406
700 1 _aHossain, M.K.
_8001711946
_gSustainable Intensification Program
_919844
700 1 _aMd. Harun-Or-Rashid
_926307
700 1 _aIslam, R.
_92697
700 1 _aLazaretti Zanatta, A.
_926693
700 1 _8001713455
_aStuerz, S.
_gSustainable Agrifood Systems
_932138
700 1 _aHossain, A.
_99230
773 0 _tFrontiers in Plant Science
_gv. 16, art. 1568461
_dSwitzerland : Frontiers Media, 2025.
_x1664-462X
_w56875
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/35965
942 _cJA
_n0
_2ddc
999 _c69439
_d69431