Abstract: In present study, the heterosis, parent-offspring conelation and genotypic conelations between iron content and agronomic characters, economic characters and qualitative characters were analyzed with 120 crosses composed 16 maize inbred lines by Grfffing's diallel method IV. Heterosis over low parent of iron content of hybrid was mainly, but there were some crosses that their heterosis mid-parent and heterosis over high parent were positive value. Iron content of the hybrid was significantly and positively correlated with those of their female parents, male parents, higlagvalue of patents, mid-value of parents and difference between high parents and 1ow-parents, and was significantly positive correlated with low-value of parents. In genotypic correlation, iron content was highly signfficantly and positively correlated to protein, cob weight and yield/plant, and signfficantly and positively to ear weight, and weakly ncagative or positive to starch and oil, and highly signfficantly and negatively correlated to ear height.

Key words: Maize, Iron content, Heterosis, Paren-offspring correlation, Genotypic correlation

CLC Number: 

• S513.03