抄録
Wheat varieties grown on the drained paddy fields frequently suffer from injury caused by excess water of the soil, being noticed as " Wet-injury ". Such a wet-injury occured throughout Japan, especially in Tokai-Kinki districts. The work to breed new varieties resistant to wet-injury has been continued at National Tokai-Kinki Agricultural Experiment Station, in Japan. Results obtained are shown in table 1. The method of selecting plants resistant to wet-injury was carried out in paddy field by irrigatin*" at growing sta:ge, strong plant decided as one ripened in the paddy field and weak as one which could not show heading, as shown fig. 2. 1. There are two factors affecting the wet-injury of wheat. 2. N factot is epistatic to C factor as to wet injury. 3, N factor when accompanies C factor shows very weak reaction to wet injury.
