Combining ability of eight yellow maize (zea mays l. )inbred lines for different characters in diallel crosses
Mosa, H. E.
Combining ability of eight yellow maize (zea mays l. )inbred lines for different characters in diallel crosses [electronic resource]. القدرة على الأئتلاف لثمانى سلالات صفراء من الذرة الشامية(zea mays l. ) لصفات مخلفة فى تهجينات تزاوجية دائرية. - p.604-615.
Includes references.
Eight diverse inbreds were crossed in a half diallel at Sakha Research Station in 2003 summer season. The 28 Fls and the two checks were planted at Sakha and Sids Agric. Res. Stations in a randomized complete block design" with four replications, in 2004 summer season. Combined analysis for the two locations was performed for grain yield, ear length, number of rows/ear, number of ears/100 plant, resistance to late wilt disease, plant height and sillung date. Estimates of combining ability effects according to Griffing (1956) Method 4 Model I were determined. Both additive and non-additive gene actions were found to be important in controlling of grain yield, ear length, resistance to late wilt disease, plant height and silking date; and only additive gene action in controlling of number of rows/ear and number of ears/100 plant. However, additive gene action seemed to be more an important than non-additive effect in the expression of all characters except resistance to late wilt disease. Also additive gene action was more interacted with the environment than non-additive action for all characters, except for number of ears/100 plant. The highest desirable values of GCA effects were obtained from SkI2l inbred for grain yield, ear length and number of ears/I00 plant, while Sk N14 inbred for number of rows/ear and plant height, Sk817 inbred for resistance to late wilt disease and Sk UI0 inbred for silking date. The cross Sk NI4 x SkI2I exhibited significant superiority over SCI55 and SC Pioneer 3080 commercial hybrids for grain yield, ear length, number of rowslear and number of ears/100 plant. This new cross will the recommended for further tests.
Summary in Arabic.
Corn--Genetics.
Corn--Hybirds.
Corn--Hybridization.
Combining ability of eight yellow maize (zea mays l. )inbred lines for different characters in diallel crosses [electronic resource]. القدرة على الأئتلاف لثمانى سلالات صفراء من الذرة الشامية(zea mays l. ) لصفات مخلفة فى تهجينات تزاوجية دائرية. - p.604-615.
Includes references.
Eight diverse inbreds were crossed in a half diallel at Sakha Research Station in 2003 summer season. The 28 Fls and the two checks were planted at Sakha and Sids Agric. Res. Stations in a randomized complete block design" with four replications, in 2004 summer season. Combined analysis for the two locations was performed for grain yield, ear length, number of rows/ear, number of ears/100 plant, resistance to late wilt disease, plant height and sillung date. Estimates of combining ability effects according to Griffing (1956) Method 4 Model I were determined. Both additive and non-additive gene actions were found to be important in controlling of grain yield, ear length, resistance to late wilt disease, plant height and silking date; and only additive gene action in controlling of number of rows/ear and number of ears/100 plant. However, additive gene action seemed to be more an important than non-additive effect in the expression of all characters except resistance to late wilt disease. Also additive gene action was more interacted with the environment than non-additive action for all characters, except for number of ears/100 plant. The highest desirable values of GCA effects were obtained from SkI2l inbred for grain yield, ear length and number of ears/I00 plant, while Sk N14 inbred for number of rows/ear and plant height, Sk817 inbred for resistance to late wilt disease and Sk UI0 inbred for silking date. The cross Sk NI4 x SkI2I exhibited significant superiority over SCI55 and SC Pioneer 3080 commercial hybrids for grain yield, ear length, number of rowslear and number of ears/100 plant. This new cross will the recommended for further tests.
Summary in Arabic.
Corn--Genetics.
Corn--Hybirds.
Corn--Hybridization.