02. Evaluation of Popcorn inbred lines for disease severity
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Abstract
In maize crop maydis leaf blight (MLB) is a sever disease in Pakistan like other countries of the world. Twelve F1 hybrids were generated in a full diallel mating of four elite popcorn inbred lines. These F1 hybrids along with parents were evaluated at Cereal Crops Research Institute (CCRI), Pirsabak, Nowshera for combining ability of disease severity. Disease data of four inbred lines with their single cross hybrids were analyzed using GGE Biplot. Both general and specific combining ability (GCA and SCA) were found significant for disease severity. Pop-4 was identified as best general combiner for disease severity, while Pop-1 and Pop-2 were having the maximum projection on average tester coordinate (ATC) Y-axis exhibiting the highest SCA effects for disease severity. These promising inbred lines need further evaluation across different productive environments in larger field trials to confirm their heterotic behavior.
Keywords: MLB; Maize; General combining ability; average tester coordinate