000			02724nab a22003857a 4500
999			_c63203 _d63195
001			63203
003			MX-TxCIM
005			20211006085221.0
008			200227s2020 ii |||p|op||| 00| 0 eng d
022			_a2319-7692
022			_a2319-7706 (Online)
024	8		_ahttps://doi.org/10.20546/ijcmas.2020.906.226
040			_aMX-TxCIM
041			_aeng
100	1		_918132 _aLongmei, N.
245	1	0	_aIdentification of heat tolerant hybrids based on morphological traits and selection indices
260			_aIndia : _bExcellent Publishers, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aDevelopment of climate resilient cultivars is necessary for maize production as increased temperature have negative impact on maize yield. Selection based on grain yield along with stress-adaptive secondary traits could help in the development of improved, stable heat stress tolerant cultivars. The current study was conducted to identify reliable and effective secondary traits associated with heat stress tolerance in tropical maize. A Six hundred and sixty two double haploid lines derived from nine bi-parental pedigree populations were phenotyped under natural heat stress and optimal condition. Evaluation was carried out under optimal and natural heat stress condition by sowing on 1st week of February and March to expose the reproductive stages and grain filling period during heat stress. Various morphological traits under study were significantly affected by heat stress. ASI found negative correlation and direct effect while EH observed positive correlation and direct effect under heat stress condition. In both conditions, grain yield found positive and significant correlation with STI, MP and GMP as indicated the better heat stress tolerant indices toward Yp and Ys. Results of this study showed that the DH line, DH_1_178 identified as heat tolerant line since this DH line had high grain yield in both conditions and this line can used in future heat tolerant breeding programme.
526			_aMCRP _bFP3
546			_aText in English
650		7	_aMaize _gAGROVOC _2 _91173
650		7	_2AGROVOC _91971 _aHeat stress
650		7	_2AGROVOC _910676 _aMorphology
650		7	_2AGROVOC _99137 _aSelection Index
650		7	_2AGROVOC _91045 _aClimate change
700	1		_918133 _aGill, G.K.
700	1		_918121 _aKumar, R.
700	1		_9862 _aZaidi, P.H. _8INT2823 _gGlobal Maize Program
700	1		_918134 _aPal, L.
773	0		_dIndia : Excellent Publishers, 2020. _gv. 9, no. 6, p. 1814-1823 _tInternational Journal of Current Microbiology and Applied Sciences _x2319-7706
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/21184
942			_2ddc _cJA _n0