الفهرس 
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Abstract
The investigation was carried out at sids experimental station
Agricultural research center during 1997.1998and1999 seasons.
The main objectives of this study are the estimation of some genetic
Parameters scaling test and phenotypic
And genotypic correlation among
Studied characters of earliness. yield and its components in addition to fiber properties in two intra-specific cotton
Crosses belong to gossypium
Barbadense L. The crosses were Giza 80×Australian cross 1 and giza83×pima early cross 11
The study procedure stated by planting parentsin1997season and crossing among them to obtain the f1 hybrids.in1998 season .the parents were crossed again to obtain more F1 hybrids seeds. Moreover, the F1 plants were back-crossed to both parents to produce back-crossed, in addition to selfing the F1 hybrids plants to produce F2 seeds . In 1999 season, the six populations i.e., P1, P2, F1, F2, BC1, BC2 of each cross were grown in field experiment, using a randomized complete block design with four replications.