Toriizumi, a new Job's tears (Coix lacryma-jobi L.) variety, was developed at the National Agricultural Research Center for Kyushu Okinawa Region in 2011. The variety was selected from a cross between "Koushu (JP83421)" and "EMS200-2-d-10-4-2-4". "Koushu" is a medium maturing variety from South Korea. "EMS200-2-d-10-4-2-4" is a late maturing line with short culm induced from "Okayama-zairai". "Toriizumi" belongs to medium maturing group and is adaptable to the western part of Japan. The seed yield is the same as "Akishizuku" and slightly higher than that of "Hatomusume". The culm length is slightly longer than that of "Akishizuku". The grain shape is slightly rounder, and the 100-grain weight is slightly less than that of "Akishizuku". The shattering is not easier than "Hatomusume" and "Hatohikari". The field resistance to leaf blight is classified as slightly high resistant, and the level of resistance is higher than that of Japanese varieties.
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ハトムギ新品種「とりいずみ」の育成とその特性
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