F LORAL traits for the parents used in hybrid rice seed production are very effective in hybrid rice seed production especially in the three line system used in this study.The longer anther, stigma and filament are, the wider anther and stigma besides high exertion ratio and angle of spikelets opening are important factors that increase the outcrossing rate which increases seed set and production. This study was conducted out at the farm of Sakha Agric. Res. Station during 2014 and 2015 seasons to contribute in choosing best CMS, maintainer and restorer lines to use in hybrid rice seed production depending on its floral traits. Also, it can be used in a breeding program for improving the floral traits of other lines that can serve as good parents in hybrid rice breeding and seed production.In brief, we found that among the studied CMS lines,Pusa13A was the best line in stigma length, angle of spikelets opening, filament length,exertion ratio (%), number of filled grains panicle-1 , seed set (%),panicle weight and plant yield characters, while Pusa13B line was the optimum owing to its high characters like, anther length, good filament length, high exertion ratio (%),number of filled grains panicle-1 and plant yield.For restorer lines, PR1 was the best in anther length, stigma length, stigma width, filament length,number of spikelets plant-1 , number of filled grains panicle-1 and panicle weight.

One cycle of direct Pedigree selection was performed with selection intensity 5 % to improve productivity with accepTable fiber quality of the two Egyptian cotton ( G. barbadense L.) cross combinations. Comparing mean performance of F2 with those of F3 generation revealed increased mean values for all traits with advanced generations from F2 to F3, indicating accumulation of increasing alleles. The phenotypic variance for all traits was highly significant through F2 and F3 generations. Heritability estimates in broad sense improved considerably for all traits from F2 to advanced F3 generations. The genotypic correlation between three earliness characters was highly significant negative with most yield traits in F2 pop. I. While genotypic correlation between the previous earliness traits with yield traits in F3 generation was positively non-significant except for lint percentage that was highly significant positive. Genotypic correlation was highly significant positive among most yield and yield component traits in both generations, which helps pedigree selection to achieve high fast genetic advance. The data of the genotypic correlation among studied characters in F2 and F3 generations in population II showed highly significant negative genotypic correlation between earliness traits in F2 generation, changed to highly significant positive in F3 generation after applying pedigree selection. The genotypic correlation between most yield characters and fiber properties showed highly significant positive correlation in population II in both generations. The superior ten families in F3 generation in both populations ranked on high yield, yield components and fiber quality showed higher means than that of F2, F3, better parent and check in most yield characters

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