Galls are also generally much larger than nodules. Severely affected root systems are often swollen ... Table 1. List of common crop and weed host species for M. incognita in Delaware. Rotating ...

IN addition to the red pigment, hæmoglobin,· we have always found in leguminous root nodules a brown pigment. This is methæmoglobin with trivalent iron1. The simplest way of demonstrating its ...