Effect of picking dates on qualitative characters of four genotypes of cotton

Abstract

A field experiment was carried out during summer season of 2011 to study the effect of picking dates on qualitative characters of four genotypes of cotton crop in two locations ,first was at college of agriculture/ tikrit university, and second was at ramadi city (200km) eastren south of tikrit city , by studing twio factors first was four genotypes of cotton ( lachata,alexander,lk and condor) and second factor was four dates of picking,to get an aim of effect of picking dates of four genotypes of upland cotton on qualitative charactrs arandomized complete block design was applied with three replications , the study included six qualitative characters, the results showed that there were significant differences between the genotypes for all these characters except fiber length and elongation characters in two location of the study and its average, while picking dates showed significant differences in all these characters in two location and it average ; The interaction between genotypes and picking dates was significant for all of these characters, where as genotypes with location were significantly interacted, also there was significant interaction between dates of picking and the location for all studied characters.

Keywords

Cotton, picking