Production adaptability of green tea cultivar candidate ‘Miyazaki no. 31’ for Gyokuro Teruki Sakaida1, Kentaro Nakazono1, Tetsuya Yoshioka1, Akira Kubota1, Hiroshi Yoshidome2, Minoru Miyamae2, and Yuzo Mizukami3 1: Fukuoka Agricultural Research Center Yame Branch Station, Kurogimachi Yame-shi Fukuoka,834-1213, Japan 2: Miyazaki Agricultural Research Center Tea Industry Branch Station, Kawaminami-machi Miyazaki, 889-1301, Japan 3: National Institute of Vegetable and Tea Science, Kanaya Shimada-machi Shizuoka, 428-8501, Japan Correspondent email:
[email protected] Summary Quality or yield of Gyokuro is greatly influenced by cultivars, as well as of Sencha and Kamairicha. We investigated production adaptability for Gyokuro of ‘Miyazaki no. 31’, cultivar candidate of green tea, which Miyazaki prefecture developed. ‘Saemidori’ has high production adaptability for Gyokuro, and we used it as comparative cultivar. We cultivated in habitual way of Gyokuro: with starting the covering from 1.0 to 1.5 leaf stage, shading about 95% light for 20 days. Compared with ‘Saemidori’, the leaf yield of ‘Miyazaki no. 31’ was more than equivalent, and sensory quality test of crude tea and amino acid content were equivalent. As a result, it was suggested that ‘Miyazaki no. 31’ has high production adaptability for Gyokuro. Introduction Improving of the early cultivar which has resistance in bark split frost injury and Gray blight tackles in Miyazaki Agricultural Research Center Tea Industry Branch Station. Among them, high-quality ‘Miyazaki no. 31’ is promising. In this case, to clarify the spread of Gyokuro producing areas, we have examined Gyokuro adaptability of ‘Miyazaki no. 31’, the report summary. In addition this study was carried out by ‘Science and technology research promotion program for agriculture, forestry, fisheries and food industry’.