000			03341cab a2200289Ia 45 0
001			u193357
003			SIRSI
008			110710s2011 ua ss b eng d
040			_aEAL
041			_aeng _bara
090			_aART EJPB V15 No1 12
100	1		_aIbrahim, Kh. A. M.
240	1	0	_aEgyptian journal of plant breeding, 2011 v. 15 (1) _h[electronic resource].
245	1	0	_aGenotypic correlation and combining ability of some yellow maize inbred lines via line by tester analysis _h[electronic resource].
246	1	5	_aالارتباط الوراثى والقدرة على التالف لبعض سلالات الذرة الشامية الصفراء من خلال تحليل السلالة x الكشاف.‪‪
300			_ap.161-177.
504			_aIncludes references.
520			_aTwenty six inbred lines were top-crossed with two testers i.e. inbred lines Gm 1002 and Gm 1021 at Mallawy Agric Res. Station in 2009 season. The resulted 52 topcrosses along with two commercial check hybrids i.e. SC 162 and SC 166 were evaluated in replicated yield trails conducted at Sakha and Mallawy Agric. Res. Stations in 2010 season. Results showed highly significant differences between both locations. Mean squares due to lines, testers and lines x testers were significant or highly significant for all studied traits. Mean squares due to lines x locations, testers x locations and lines x testers x locations interactions were significant or highly significant for all studied traits, exceptfor days to 50% silking. Five and six inbred lines possessed positive and significant or highly significant general combining ability effects (GCA) for ears per 100 plant and ear length, respectively. Six inbred lines had positive and significant or highly significant GCA effects for grain yield. For specific combining ability effects (SCA) six, two and three topcrosses had positive and significant SCA effects for ears per 100 plants, ear length and grain yield, respectively.σ² GCAL-was higher than σ² GCA-T for all studied traits, except ears per 100 plants, which indicated that most of GCA variance was due to lines. The ratio of σ² GCA/σ²SCA-was more than unit for days to 50% silking and plant and ear height, indicating that additive gene action played an important role in the inheritance of these traits, while σ² GCA/SCA was less than unity for ears per 100 plants, ear length and grain yield, indicating that non-additive genetic variance was more important in the expression of the latter traits.. Positive and significant genotypic correlation was observed among grain yield and each of days to 50% silking, plant height and ear height The highest grain yield was obtained by two topcrosses i.e. L-8 x Gm 1011 and L-17 x Gm 1021, which significantly out yielded the check hybrid SC 162 by 12.56 and 12.33%, respectively. These two promising single crosses have to be evaluated in the advanced stage for release as new commercial hybrids in Maize Research Programmed.
546			_aSummary in Arabic.
650		0	_aCorn _xAnalysis.
650		0	_aHybrid corn.
650		0	_aCorn _xGenetics.
700	1		_aMousa, S. Th. M.
773	0		_tEgyptian Journal of Plant Breeding. _g2011.v.15(1) _x1110-7863 _7nnas _wu191048
856	4	0	_uhttp://nile.enal.sci.eg/EALE/2011/EJPB/1511/1/161.pdf _zFull Text Article.
596			_a1
942			_cAR _2lcc
999			_c46887 _d46887