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Character association and path analysis of grain yield and its components in maize (Zea mays L.) under heat stress

Maize (Zea mays L.) is one of the most diversified and versatile crop grown worldwide under varied agro-climatic condition. However, a significant amount of reduction in grain yield has been reported because of heat stress. Being a complicated character that depends on multiple component traits, direct selection is in effective for grain yield. Considering these aspects, a study was conducted to determine the magnitude and extent of trait interdependency among yield and yield attributing characters under heat stress condition using forty five maize hybrids. The hybrids were evaluated by following randomized block design with two replications at EB-II section of the Department of Plant Breeding and Genetics, College of Agriculture, OUAT, Bhubaneswar during Summer 2018. | Character association and path analysis of grain yield and its components in maize (Zea mays L.) under heat stress