000			02602naa a22003137a 4500
001			58322
003			MX-TxCIM
005			20211006082039.0
008			170208s2016 mx ||||| |||| 00| 0 eng d
040			_aMX-TxCIM
041			_aeng
100	1		_91921 _aRobledo Arratia, L.
245	1	0	_aPartitioning photosynthetic limitation and yield diversity in wheat cultivars grown at CIMMYT
260			_aMexico : _bCIMMYT, _c2016.
500			_aOpen resorce
520			_aSustainable intensification of agriculture considers the increasing of yields for the most important staple crops as a central point in the strategy to alleviate food security issues. However, in many parts of the world there has been a plateau in yields, which shows that is necessary to develop new agronomical and technological strategies to fulfill future demands. Carbon assimilation is the main determinant of crop biomass and a key trait for improving wheat genetic yield potential. CO2 diffusion from the atmosphere to the chloroplast stroma can be divided into two steps, stomatal conductance (gs) describes the gas phase pathway for CO2 from the atmosphere to the intercellular airspace, while mesophyll conductance (gm) refers to the intracellular pathway to Rubisco. In this work, 13 wheat genotypes were grown in Yaqui Valley, northwest Mexico to determine yield performance, photosynthetic performance (including gs and gm) and leaf anatomy traits. It was shown that these genotypes are very diverse for most of the traits analyzed. Based on yield performance, two groups were identified, either high yielding genotypes or low yielding genotypes. Data shows that yield was positively correlated with A, gs and gm, but negative correlations were observed between yield and SLA and between gm and LAI. All these results suggest that leaf anatomy plays a central role in determining the photosynthetic performance of genotypes and contributes to final grain yield.
526			_aWC _cFP3
546			_aText in English
610	2	7	_9978 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT)
650		7	_aWheat _gAGROVOC _2 _91310
650		0	_91913 _aPhotosynthesis _gAGROVOC
700	1		_9899 _aMolero, G. _gFormerly Global Wheat Program _8INT3193
700	1		_91915 _aCarmo Silva, E.
700	1		_aReynolds, M.P. _gGlobal Wheat Program _8INT1511 _9831
700	1		_91912 _aParry, M.A.J.
700	1		_91922 _aGriffiths, H.
773	0		_wu58303 _dMexico : CIMMYT : USAID : MASAGRO : SAGARPA : CONACYT, 2016. _tProceedings of the 2nd International TRIGO (Wheat) Yield Potential : _gp. 102-106
942			_2ddc _cPRO
999			_c58322 _d58314