Precision of Some Statistical Procedures in Evaluating Cotton Genotype

Cotton (Gossypium barbadense L.) is one of the most important basic fiber crops in the world. Egyptian cotton has been the most important export and cash crop in Egypt for many years. Cotton is considered one of the important strategic crops, where it has an effective influence on national income of Egypt. Cotton contributes 2.5% of agriculture total income which equals about 4.8% of total plant production (FAO STAT 2014).