Determination and Quantification of Susceptibility of Heritance Resistance to Root Rot of Eight Commercial Genotypes of Maize (<i>Zea mays</i> L.)

Maize is susceptible to a number of diseases that can infect all plant organs and serve as constraint on cereal production. The reduction in production caused by disease estimated at an average 9.4%. Corn root rot contributes greatly the grain quality. main objective this work was review research maize determine susceptibility genotypes quantify inheritance resistance maize. methodology used complete 8 × diallel design planted during year 1999/2000. Root discoloration, length, volume, effective volume yield were evaluated parameters. To analyze data combinatorial abilities, genetic correlations, heritability correlated response, analysis used. Eight parental lines; P28, I137TN, MP706, E739, MO17, B37, B73, B14 planted. lines crossed into each other, combinations according model (Model 1). F1 harvested after maturation. For statistical analysis, version Agrobase program (2016) Results show hybrids showed significant differences height, yield. P28 line B73XE739 cross had, respectively, highest general specific combinations. discoloration had correlation (rA = 0.47) with length. Broad narrow for were, h2 0.81 0.51. response (CR 0.14)