2. Four-rowed ears have two rows of kernels on either side of the cob, the two pairs of rows being separated by smooth areas (rachis without paleae). It is necessary to distinguish between palea and rachis color as well as between these and pericarp color, all of which belong to the P allelomorphic series. Ten genotypes have been found, as follows:
|
Genotype (with A) |
Pericarp color |
Palea color |
Rachis color |
| Prrr | red | red | red |
| prrw | " | " | white |
| Prwr | " | white | red |
| Prww | " | " | white |
| Pwrr | colorless | red | red |
| Pwrw | " | " | white |
| Pwwr | " | white | red |
| Pwww | " | " | white |
| Porr | orange | red | red |
| Poww | " | white | white |
An account of this series will probably be published in Zeitschrift fur induktive Abstammungs - u. Vererbungslehre.