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Evaluation of some Egyptian cotton genotypes over two stages [electronic resource].

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Idris, H. A

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Language: English Summary language: Arabic Description: p.395-408Other title:

تقييم بعض التراكيب الوراثية من القطن المصرى على مرحلتين [Added title page title]

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Bulletin of Faculty of Agriculture. Cairo University, 2011 v. 62 (4) [electronic resource].

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In: The Bulletin Faculty of Agriculture, Cairo University 2011.v.62(4)Summary: The present investigation deals with the variation among some Egyptian cotton (Gossypium barbadense L.) genotypes. They were evaluated within Giza 80 zone, Minya and Beni Souf (Upper Egypt) through two programs (breeding and regional) during 2009 and 2010 seasons. A randomized complete block design was used in the two programs to estimate the variance among the genotypes. The first analysis used one observation per experimental unit to evaluate the genotypes in the first stage (individual generations or locations). The second analysis used more than one observation per experimental unit to evaluate genotypes in the second stage (two generations or locations). The results of the breeding program exhibited significant variation due to genotypes and hybrids vs. G80 were observed for total yields (seed and lint) and earliness. Hybrids significantly surpassed G80 with respect to total yields (seed and lint) and earliness except G90 x Pima S 62 (24240), (G83 x Pima S 6) x Dandara, (G83 x (G75 x 5844) x G85 and G91 x G80 for earliness in the two generations.

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The present investigation deals with the variation among some Egyptian cotton (Gossypium barbadense L.) genotypes. They were evaluated within Giza 80 zone, Minya and Beni Souf (Upper Egypt) through two programs (breeding and regional) during 2009 and 2010 seasons. A randomized complete block design was used in the two programs to estimate the variance among the genotypes. The first analysis used one observation per experimental unit to evaluate the genotypes in the first stage (individual generations or locations). The second analysis used more than one observation per experimental unit to evaluate genotypes in the second stage (two generations or locations). The results of the breeding program exhibited significant variation due to genotypes and hybrids vs. G80 were observed for total yields (seed and lint) and earliness. Hybrids significantly surpassed G80 with respect to total yields (seed and lint) and earliness except G90 x Pima S 62 (24240), (G83 x Pima S 6) x Dandara, (G83 x (G75 x 5844) x G85 and G91 x G80 for earliness in the two generations.

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