000			03372nab|a22003737a|4500
001			67096
003			MX-TxCIM
005			20240116211900.0
008			202212s2022||||mx |||p|op||||00||0|eng|d
022			_a2320-7035
024			_ahttps://doi.org/10.9734/ijpss/2022/v34i2231373
040			_aMX-TxCIM
041			_aeng
100	0		_aGoshime Muluneh Mekasha _932876
245	1	0	_aEstimation of general and specific combining ability effects for quality protein maize inbred lines
260			_bSCIENCEDOMAIN international, _c2022. _aUnited States of America :
500			_aPeer review
500			_aOpen Access
520			_aBackground: Maize (Zea mays L.) plays a critical role in meeting high food demand. It is globally one of the most widely adapted and cultivated crops. Hybrid development from fixed inbred lines is one of the strategies for the improvement of maize production. The national average maize yield in Ethiopia is low and thus, selection of promising germplasm and knowledge of combining ability are prerequisites to developing high yielding maize varieties. Forty-two Quality Protein Maize (QPM) crosses (21 inbred lines each crossed with two testers) along with three popular standard hybrids were evaluated in two replications using alpha lattice during the 2017 cropping season at Ambo, Arsi-Negele, and Kulumsa. The objectives of this study were to identify lines with high GCA and estimate the SCA of crosses for grain yield, and other agronomic and morphological characters. Results: Significant difference among crosses was observed for 19 traits at Ambo, 14 traits at ArsiNegele, and 19 traits at Kulumsa in the hybrid trial. Regarding the GCA effect, L8 had a significant difference to the positive side with the highest magnitude of GCA effect at three locations (3.40, 2.03, and 1.88 GCA effect values at Arsi-Negele, Ambo, and Kulumsa, respectively) which is followed by L7 for GY. All crosses did not show a significant SCA effect for GY in both directions at Ambo and Arsi-Negele but at Kulumsa, five crosses: L2xT1(1.89), L13xT2(1.88), L7xT1(1.86), L4xT2(1.49) and L19xT1(1.41) showed significant difference. In the combined analysis for six traits, Additive gene action was more important which was manifested by a higher sum square contribution of DS (79.6) EPP (79.3%), EL (80.0%), KPR (80.1%), ED (78.5%) and TSW (79.1%). Conclusion: Based on mean grain yield, and combining ability, L8xT2, L7xT1, L8xT1, L19xT1, L6xT2, and L18xT1 are promising crosses that could be forwarded for further use in maize breeding programs for further works.
546			_aText in English
650		7	_2AGROVOC _92367 _aCombining ability
650		7	_2AGROVOC _91173 _aMaize
650		7	_2AGROVOC _91223 _aProtein quality
650		7	_2AGROVOC _91155 _aInbred lines
650		7	_2AGROVOC _94371 _aData analysis
651		7	_2AGROVOC _92025 _aEthiopia
700	1		_aChere, A.T. _9791 _8I1705938 _gGlobal Maize Program
700	1		_aAli, H. M. _926606
700	1		_aDagne Wegary Gissa _9952 _8INT3401 _gGlobal Maize Program
700	0		_aSolomon Admassu Seyoum _932877
773			_tInternational Journal of Plant & Soil Science _gv. 34, no. 22, p. 209-237 _dUnited States of America : SCIENCEDOMAIN international, 2022. _x2320-7035 _wu57479
856			_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/22927
942			_cJA _n0 _2ddc
999			_c67096 _d67088