000			03021nab a22003497a 4500
999			_c63200 _d63192
001			63200
003			MX-TxCIM
005			20211006085221.0
008			191206s2019 ii |||p|op||| 00| 0 eng d
022			_a2278-8867
040			_aMX-TxCIM
041			_aeng
100	1		_918123 _aGeetha, N.
245	1	0	_aCombining ability and heterosis of maize (Zea mays L.) doubled haploid lines derived from heat tolerant populations
260			_aIndia : _bMaize Technologists Association of India, _c2019.
500			_aPeer review
520			_aA field experiment was conducted to assess the general combining ability of parents, specific combining ability of hybrids and to estimate heterosis of hybrids under heat stress condition. The experiment consisted of 16 hybrids developed by crossing four female and four male doubled haploid lines in NCD-II design. The hybrids were evaluated along with the commercial check, P1855 during summer 2017 at Agriculture College Farm, Bheemarayanagudi. The magnitude of GCA variance was lesser than SCA variance for tassel blast, ear height, ear girth, number of kernels per cob and shelling percentage indicating the predominance of non-additive gene action in controlling these traits. However, the magnitude of GCA variance was larger than SCA variance for days to 50% anthesis, anthesis to silking interval, plant height, ear length, 100 grain weight indicating the predominance of additive gene action than non-additive gene action in the inheritance of these traits. The magnitude of GCA variance was equal to SCA variance for days to 50% silking and grain yield per plant indicating the predominance of both additive and non-additive gene action in the inheritance of these two traits. Among females, ZL155203 was a good general combiner for days to 50% silking. Whereas, ZL155347 was a good general combiner for days to 50% anthesis, days to 50% silking, plant height, ear length, ear girth, number of kernels per cob and grain yield per plant among the male haploid maize lines. Among the hybrids, ZL155201 × ZL155320 exhibited significant negative sca for days to 50% silking. While, ZL155203 × ZL155347 exhibited significant positive standard heterosis for grain yield per plant under heat stress. These promising hybrids could also be used for the isolation of second cycle inbred lines, besides promoting them for deployment.
526			_aMCRP _bFP3
546			_aText in English
650		7	_aMaize _gAGROVOC _2 _91173
650		7	_2AGROVOC _92367 _aCombining ability
650		7	_2AGROVOC _91971 _aHeat stress
650		7	_2AGROVOC _91145 _aHeterosis
700	1		_93769 _aKuchanur, P.H.
700	1		_9862 _aZaidi, P.H. _8INT2823 _gGlobal Maize Program
700	1		_95754 _aArunkumar, B.
700	1		_918124 _aDhanoji, M.M.
700	1		_91446 _aSeetharam, K.
700	1		_9925 _aVinayan, M.T. _8INT3341 _gGlobal Maize Program
773	0		_dIndia : Maize Technologists Association of India, 2019. _gv. 8, no. 2, p. 77-84 _tMaize Journal _x2278-8867
942			_2ddc _cJA _n0