Diallel analysis for yield and yield components of yellow mal ze under two different locations [electronic resource].

Includes references.

Eight yellow inbred lines were made at Gemmeiza Research Station and crossed in a diallel cross system in the growing season 2009. The eight parents were (Gm1340, Gm1343, Gm. 1346, Gm. 1342, Gm. 1345, Gm. 1347, Gm. 1341 and Gm1344). The 28 crosses in addition to two checks (SC 162, SC 166) were evaluated at Gemmeiza and Mallawy Agricultural Research Stations in 2010 growing season. Data were collected on number of days to 50% silking date (day), plant and ear heights, resistance to late wilt disease, grain yield (Mg/ha), ear length (cm.), ear diameter (cm), number of rows/ear, number of kernels/row and weight of lOO-kernels (g) and analyzed according to Griffing (1956) method-4 model-1 fixed model. Mean squares of locations were highly significant for all studied traits except, number of days to 50 % silking date. Significant differences were obtained among general (GCA) and (SCA) specific combining ability as well as their interaction with locations for most studied traits. Additive gene action played an important role in the in heritance ofmost studied traits, exclft number ofdays to 50% siliking date, ear length and ear diameter according to the ratio K GCA/ K2 SCA as well as their interactions with locations for all studied traits,

Summary in Arabic.

1