000			03358nab|a22005537a|4500
999			_c63170 _d63162
001			63170
003			MX-TxCIM
005			20231011234127.0
008			200325s2020||||sz |||p|op||||00||0|eng|d
022			_a2073-4395 (Online)
024	8		_ahttps://doi.org/10.3390/agronomy10121998
040			_aMX-TxCIM
041			_aeng
100	1		_aVinayan, M.T. _9925 _8INT3341 _gGlobal Maize Program
245	1	0	_aGenotype-by-environment interaction effects under heat stress in tropical maize
260			_aBasel (Switzerland) : _bMDPI, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aSpring maize area has emerged as a niche market in South Asia. Production of maize during this post-rainy season is often challenged due to heat stress. Therefore, incorporating heat stress resilience is an important trait for incorporation in maize hybrids selected for deployment in this season. However, due to the significant genotype × environment interaction (GEI) effects under heat stress, the major challenge lies in identifying maize genotypes with improved stable performance across locations and years. In the present study, we attempted to identify the key weather variables responsible for significant GEI effects, and identify maize hybrids with stable performance under heat stress across locations/years. The study details the evaluation of a set of prereleased advanced maize hybrids across heat stress vulnerable locations in South Asia during the spring seasons of 2015, 2016 and 2017. Using factorial regression, we identified that relative humidity (RH) and vapor pressure deficit (VPD) as the two most important environmental covariates contributing to the large GEI observed on grain yield under heat stress. The study also identified reproductive stage, starting from tassel emergence to early grain-filling stage, as the most critical crop stage highly susceptible to heat stress. Across-site/year evaluation resulted in identification of six high yielding heat stress resilient hybrids.
526			_aMCRP _bFP3
546			_aText in English
591			_aSeetharam, K. : Not in IRS Staff list but CIMMYT Affiliation
591			_aDas, R.R. : Not in IRS Staff list but CIMMYT Affiliation
591			_aViswanadh, S. : Not in IRS Staff list but CIMMYT Affiliation
650		7	_2AGROVOC _91133 _aGenotype environment interaction
650		7	_2AGROVOC _91971 _aHeat stress
650		7	_aMaize _gAGROVOC _2 _91173
650		7	_2AGROVOC _91313 _aYields
650		7	_2AGROVOC _91045 _aClimate change
650		7	_2AGROVOC _910780 _aRelative humidity
650		7	_2AGROVOC _910781 _aVapour pressure
700	1		_9862 _aZaidi, P.H. _8INT2823 _gGlobal Maize Program
700	1		_91446 _aSeetharam, K.
700	1		_aDas, R.R. _917505
700	1		_918050 _aViswanadh, S.
700	1		_910782 _aAhmed, S.
700	1		_918051 _aMiah, M.A.
700	1		_92054 _aKoirala, K.B.
700	1		_918052 _aTripathi, M.P.
700	1		_918053 _aArshad, M.
700	1		_918054 _aPandey, K.
700	1		_918055 _aChaurasia, R.
700	1		_93769 _aKuchanur, P.H.
700	1		_93768 _aPatil, A.
700	1		_94318 _aMandal, S.S.
773	0		_tAgronomy _gv. 10, no. 12, art. 1998 _dBasel (Switzerland) : MDPI, 2020. _x2073-4395
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/21156
942			_cJA _n0 _2ddc