Evaluation of the Easiness of Occurrence of Hull-cracked Grains in Malting Barley by Early Seeding and Shading Treatment

Japanese Journal of Crop Science

Takahide BABA¹  Hiroomi KAI¹  Osamu YAMAGUCHI¹  Masahiko FURUSHO¹ 

关键词: Damage grain;    検定法;    Early seeding;    遮光;    Hull cracked grain;    側面裂皮粒;    Malting barley;    æ—©æ’­;    Selection method;    ビール大麦;    Shading;    被害粒;   

DOI  :  10.1626/jcs.71.469

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Hull cracked grain (HC) is one of grain damages in malting barley. We evaluated the easiness of occurrence of HC by early seeding and shading tratment during the stern shooting stage using 26 Japanese malting barley cultivars. These cultivars were seeded around November 10 and 50% shaded with cheesecloth for about 30 days before heading (from the middle of March to the middle of April). The same experiment was repeated for three years. The frequency of the occurrence of HC was increased by combined treatment of early seeding and plant shading from 5.9% to 31.4%, on the average. There was a significant genotype × year interaction in the percentage of occurrence of HC, and the occurrence of HC varied with the year. Therefore, it is necessary to examine the frequency of HC occurrence for several years to evaluate the tolerance to HC. The occurrence of HC was suggested to be affected by sunshine hours during the stem shooting stage. Among 26 cultivars, Kinuyutaka and Kyushu Nijo 16 produced HC at low frequencies in all three years, and they are favorable parents for breeding the HC-tolerant varieties.

【 授权许可】

Unknown