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RESPONSE OF SEVEN COTTON VARIETIES TO THE ENVIRONMENTAL VARIATIONS | ||
| AL-TAQANI | ||
| Article 1, Volume 21, Issue 2, 2008, Pages 0-0 | ||
| Abstract | ||
| The experiment was carried out at research station of the Institute of Technology in Mosul, Al-Namrood location (Cotton Research Unit) during the two years 2001 and 2002 using the cotton varieties, Coker310, Ashor1, Nazley87, Montana, Stonvill474, Deltapine50 and Taka1. These varieties were planted by using randomized complete block design with three replications to test genotypic – environment interaction for the characters, plant height, number of vegetative and flowering branches, number of bolls per plant, boll weight, earliness and seedcotton yield. The results showed that the interaction between varieties and years was significant for plant height, boll weight, earliness and seed cotton yield. It was shown that the contribution of this interaction on the variability of all studied characters is relatively small as compared with the contribution of the varieties except seed cotton yield, at which the genotype – environment interaction has the largest effect on its variability. The results indicate that the three varieties, Montana, Nazley87 and Stoneville 474 show a good genetic stability and performance for the most characters, and could be used in subsequent cotton breeding programmes | ||
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