煎茶用新登録品種「おくみどり」
1975 年 1975 巻 43 号 p. 1-12
詳細
1975 年 1975 巻 43 号 p. 1-12
A new tea variety named "Okumidori" is a clone suitable for green tea. It was bred by the Breeding Laboratory of Tea Agronomy Division, the National Research Institute of Tea, and registered with M. A. F. as a superior variety in June, 1974.
"Okumidori" originated from the Fl hybrid of "Yabukita" (the superior green tea variety) X the Shizuoka native variety No. 16.
Both mature and young leaves of this variety are smaller in size than those of "Yabukita", elliptic in shape, slightly glossy, and green in colour.
"Okumidori" is a late variety with a spreading growth habit and numerous shoots. The time of bud opening of this variety is about eleven days later, and the plucking time is about eight days later than those of "Yabukita", respectively. Above two times of this variety are also about five days later than those of a slightly late variety "Kanayamidori", respectively.
The superior characteristics of this variety are strong cold-resistance, vigorous growth, high yield and fine quality. Its yield is greater than that of "Yabukita", and its quality is as good as that of the latter and it is the best among late varieties and clones. Cuttings of this variety root readily and show good growth after rooting and planting.
"Okumidori" is adapted to the green tea areas of Tokai, Kinki and Kyushu regions, and also some hilly areas of above regions because of its tolerance to cold and its late plucking period. One case of the varieties combination for the rational management of the tea industry is as follows ; a early variety --a medium variety "Yabukita"--a slightly late variety "Kanayamidori"--a late variety "Okumidori".
