暖地向け緑茶用極早生品種 \u27しゅんたろう\u27 の育成とその特性

A new tea cultivar \u27Shuntaro\u27 has bred at Makurazaki branch of Vegetable and Tea Science (NIVTS) of National Agriculture and Food Research Organization (NARO), and an application for registration had been published in 29 Jun 2009. \u27Shuntaro\u27 is an extremely early budding cultivar like a \u27Kuritawase\u27, and is resistance to anthracnose (Discula theae-sinensis (I. Miyake) Moriwaki & Toy. Sato comb. nov.) and gray blight (Pestalotiopsis longiseta (Spegazzini) Dai & Kobayashi). The quality for green tea of \u27Shuntaro\u27 is equal or above in comparison with \u27Kuritawase\u27, and the yield of \u27Shuntaro\u27 is more than \u27Kuritawase\u27. Early budding cultivars are advantageous in warm regions. An extremely early budding cultivar is particularly advantageous in warmer area like Tanegashima in Kagoshima prefecture. So, \u27Kuritawase\u27 has become important cultivar in Tanegashima. However, many tea fields of \u27Kuritawase\u27 have become old, and productivity is falling. Replanting of \u27Kuritawase\u27 is difficult because growth is slowly and vigor is weak. \u27Shuntaro\u27 is the extremely early budding cultivar that can take the place of \u27Kuritawase\u27