الفهرس 
Genetic correlationOnly 14 pages are availabe for public view
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Abstract
This experiment was carried out at the Experimental Farm of Faculty of Agriculture, Minufiya University, Shibin El-Kom, Egypt during the three successive seasons 2009/ 2010, 2010 / 2011and 2011 / 2012. Twenty four common wheat varieties were used to establish the experimental materials for the two biometrical tools used in this concern i.e., six populations analysis and triple test cross analysis. The objectives of the present study are to establish:
- The role of non-allelic interaction (epitasis) in the inheritance of grain yield and other yield attributing characters using six population and triple test cross given by Kearsey and Jinks (1968) and modified by Ketata et. al, (1976).
-To compute the genetic correlation among various characters and partitioning it to additive, dominance and epistatic correlation.
- Prediction of the proportion of good recombinant inbred lines, which could be extracted in proceeding generation.
- The potentiality of heterosis expression for grain yield and its contributory characters, heading date and plant height.
- The genetical behavior, heritability and expected genetic advance under selection for grain yield and some agronomic traits in the four crosses, Giza 168 × Sids 9, Gemmeiza 7× Sakha 94, Gemmeiza 7 × Sakha 69 and Giza 170 × Sakha 94 under two levels of nitrogen fertilization.
- The detection and estimation of additive (D) and dominance (H) components of genetic variation according to Kearsey and Jinks (1968), Jinks et. al, (1969) and Jinks and Perkins (1970).