الفهرس 
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Abstract
These investigations was carried out at sids and Gemmiza Experimental stations during the period from 1982 till 1985.
The objectives of this study were to obtain the following informations :
a) The influence of line x tester analysis on the studied character.
B) Estimates value for additive and dominance variance.
C) The correlation coefficient and interrelationships between yield components.
D) Nature of tester.
E) Evaluation of hybrids between selected lines.
A total of 25 inbred lines, i.e., 18 developed from tepalcinco # 5 and the other 7 from synthetic laposta.