000			02972nab|a22003977a|4500
001			65478
003			MX-TxCIM
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008			20226s2022||||mx |||p|op||||00||0|eng|d
022			_a0022-0957
022			_a1460-2431 (Online)
024	8		_ahttps://doi.org/10.1093/jxb/erac144
040			_aMX-TxCIM
041			_aeng
100	0		_aPengcheng Hu _924274
245	1	0	_aPhenological optimization of late reproductive phase for raising wheat yield potential in irrigated mega-environments
260			_bOxford University Press, _c2022. _aOxford (United Kingdom) :
500			_aPeer review
500			_aOpen Access
520			_aIncreasing grain number through fine-tuning duration of the late reproductive phase (LRP; terminal spikelet to anthesis) without altering anthesis time has been proposed as a genetic strategy to increase yield potential (YP) of wheat. Here we conducted a modelling analysis to evaluate the potential of fine-tuning LRP in raising YP in irrigated mega-environments. Using the known optimal anthesis and sowing date of current elite benchmark genotypes, we applied a gene-based phenology model for long-term simulations of phenological stages and yield-related variables of all potential germplasm with the same duration to anthesis as the benchmark genotypes. These diverse genotypes had the same duration to anthesis but varying LRP duration. Lengthening LRP increased YP and harvest index by increasing grain number to some extent and an excessively long LRP reduced YP due to reduced time for canopy construction for high biomass production of pre-anthesis phase. The current elite genotypes could have their LRP extended for higher YP in most sites. Genotypes with a ratio of the duration of LRP to pre-anthesis phase of about 0.42 ensured high yields (≥95% of YP) with their optimal sowing and anthesis dates. Optimization of intermediate growth stages could be further evaluated in breeding programmes to improve YP.
546			_aText in English
650		7	_aBreeding _2AGROVOC _91029
650		7	_aCrop modelling _2AGROVOC _92623
650		7	_aEnvironment _2AGROVOC _91098
650		7	_aPhenology _2AGROVOC _94770
650		7	_aSpring wheat _2AGROVOC _91806
650		0	_aMaximum sustainable yield _gAGROVOC _910792
700	1		_aChapman, S. _9458
700	1		_aSukumaran, S. _8INT3330 _9920 _gFormerly Global Wheat Program
700	1		_aReynolds, M.P. _8INT1511 _9831 _gGlobal Wheat Program
700	1		_aBangyou Zheng _93434
773	0		_tJournal of Experimental Botany _gv. 73, no. 12, p. 4236-4249 _dOxford (United Kingdom) : Oxford University Press, 2022 _x0022-0957 _wG444540
856			_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/22126
942			_cJA _n0 _2ddc
999			_c65478 _d65470