Motes percentage and ginning outturn as affected by cotton genotype and growing location
2010
El-Faky, H.H. | Hassan, S.A.
The present study was conducted to analyze cotton genotype and growing location differences in motes formation and content, as well as to determine the relationships among these factors and ginning outturn. Therefore, the seed cotton of five promising crosses namely; G.77 x Pima S6 and G.84 x (G.74 x G.68) grown in [Kafr ElSheikh - Kafr El-Dawar - Etay El-Barood - Damietta], G.89 x Pima S6 grown in [El-Sharkia - EI-Gharbiya - El-Dakahliya - El-Monofiya], G.83 x (G.75 x 5844) x G.80 and G.90 x Australian grown in [Sohag - El-Minia - Beni-Sueif -El-Faium] were used in this study. The obtained results indicate that the promising crosses exhibited different behavior responses to environmental conditions. On the whole, environmental factors associated with differences in location of growth, appeared to have much more influence on the number of motes than did varietal factors. Most of the locks for the promising crosses at the different locations tend to cluster around the mean of 6 or 7 seeds per lock. There is a fairly marked tendency for the lock index, lint weight and lint percentage to decrease as the motes percentage increase. On the other hand, most of the promising crosses under study tend to increase in the seed index as the motes percentage increase. However, the increase in seed index as a result of the increase in motes percentage for some cotton genotypes grown at different environments could explain the difference in the behavior of these cotton genotypes in lint percentage.
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