This study was conducted at the General Commission Of Scientific
Agricultural Research (GCSAR) for tow consecutive years, 2000-2001, to
estimate the heterosis of some sorghum hybrids utilizing cytoplasmic male
sterility technique, and to determine
the behavior of the parents used in
hybridization concerning their relation to the cytoplasmic male sterility.
Hybrids were planted in a randomized complete block design, including 43
hybrids in tow replications.
The results showed variation among parents characters, because they were
selected from different environments and also differ in genetic components.
positive heterosis was recorded form crosses involved foreign parents with
local ones, or foreign hybridized with foreign. positive heterotic values for
earliness and productivity were obtained .
The genetic constitution of the male parent was assessed as R-line (restoring
of the A-line), and B-line (maintainer of the A-line).
