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Path analysis showing the relationship of grain yield and agronomic traits of maize hybrids: yield, grain yield; ER, ear rot; EPP, ear per plant, EA, ear aspect, HC, husk cover, ASI, anthesis-silking interval; EH, ear height; PH, plant height; DA, days-to-anthesis; RL, root lodging; SL, stalk lodging. Values in parentheses are correlation coefficients, and other values are direct path coefficients. R1 represents the residual effects.
