الفهرس 
ACKNOWLEDGMENT
Agronomic performance of grain soryhum hybridsOnly 14 pages are availabe for public view
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Abstract
Combining ability and heterosis studies in grain sorghum
(Sorghum incolor (1.) Moench }.
us study was carried out lo study heterotic respolise and ig al) kty in grain sorghum hybrids.
lirty exotic cytojilasmic male sterile lines (CMS) and two restorer Local 129 as tall variety and NES 007 as short dual purpose were grown at Shandaweel research station ( Sohag) in 994
The thirly CMS lines were top crossed with the Iwo restorers to
60 top crosses (thirty with Local 129 and fury with NES 1007 ).
) crosses along with the two restorer lines were evaluated in
ly randomized block design with 3 replications at Assiut
ire Research Farm Assiut university and Solmg ( Sandaweel Station ) in 1995 season,
ta were recorded on days to 50 % blooming, plant height, leaf ucle length, panicle width, 1000 grain weight and grain yieid. The data were statistically analyzed for each location and over both Also the combining ability was estimated from the line tester iid the correlation among jairs of traits were estimated, The ained could he summarized as follows.
mance of the hybrids
giNned analysis over two locations revealed highly significant among all genotypes for all studied traits. Also the interac(ions