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Selection of new hybrid combinations of yellow maize for high yield and resistance against late wilt disease via line x tester analyses under different environmental conditions [electronic resource].

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Motawei A. A

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Language: English Summary language: Arabic Description: p.263-274Other title:

انتخاب هجن جديدة من الذرة الصفراء عالية المحصول ومقاومة لمرض الذبول المتاخر باستخدام طريقة الهجن القمية تحت ظروف بيئية مختلفة [Added title page title]

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Mansoura University journal of agricultural chemistry and biotechnology, 2010 v.1 (5) [electronic resource].

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In: Mansoura University Journal of Agricultural Chemistry and Biotechnology 2010.v.1(5)Summary: Forty two new inbred lines of yellow maize were top-crossed with two testers at Sakha Agricultural Research Station during 2006 summer season. The resultant 84 top-crosses were divided into two sets where each set included 42 top-crosses with two commercial checks. All genotypes were evaluated under two different experimental conditions in 2007 growing season. The first experiment was conducted at both Sakha and Mallawy Stations to be evaluated lor grain yield (GY) and number of days to mid-silking (OS) and the second experiment was Cultivated under artificial infection by the pathogen Cephalosporium maydis under two levels of nitrogen fertilizer to assess the resistance to late witt disease (RLW%). The best seven topcrosses for yielding abmty with resistance against late wilt disease were selected from the two sets and evaluated at four locations i.e. Sakha, Gemmiza, Sids and Mallawy Stations for GY, OS and RLW% traits during the 2oo9 growing season.

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Forty two new inbred lines of yellow maize were top-crossed with two testers at Sakha Agricultural Research Station during 2006 summer season. The resultant 84 top-crosses were divided into two sets where each set included 42 top-crosses with two commercial checks. All genotypes were evaluated under two different experimental conditions in 2007 growing season. The first experiment was conducted at both Sakha and Mallawy Stations to be evaluated lor grain yield (GY) and number of days to mid-silking (OS) and the second experiment was Cultivated under artificial infection by the pathogen Cephalosporium maydis under two levels of nitrogen fertilizer to assess the resistance to late witt disease (RLW%). The best seven topcrosses for yielding abmty with resistance against late wilt disease were selected from the two sets and evaluated at four locations i.e. Sakha, Gemmiza, Sids and Mallawy Stations for GY, OS and RLW% traits during the 2oo9 growing season.

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