Genotype-Environment Interaction in Determining Pollen Grain Diameter in Maize

Studies on the genotype-environment interaction of pollen grain diameter in maize (Zea mays L.) in an 8×8 diailel involving parents and F,'s without reciprocals grown at two locations, Delhi and Hyderabad, have elucidated that additive and dominant gene action play important roles of which the former plays a major role in controlling this character. Interaction of additive and dominance variances with location suggests that the character is highly influenced by environmental fluctuations.