USE OF MATROCLINOUS HAPLOIDS FOR GENETIC- ANALYSIS OF EAR LENGTH AND PLANT HEIGHT IN MAIZE

The quantitative traits ''ear length'' and ''plant height'' were analy zed in maize by means of hybridological and statistical analysis. Matr oclinous haploids derived from the parental lines and their direct and backcross hybrids were used. Haploids were obtained by genetic induct ion. It is proposed that the traits studied are controlled by oligogen es. The results of genetic analysis suggest that haploids of the paren tal lines are characterized by the interaction of three nonallelic gen es in respect to the ear length trait, and by the interaction of two n onallelic genes in respect to the plant height trait. The data obtaine d shows that haploids have great promise for genetic analysis.