Characteristics in Bud Growth and Tea Bud Hardiness during 2010 Winter Season at Shizuoka Prefectural Tea Research Center

Abstract

The growth stage and degree of cold resistance of tea buds were investigated from autumn 2009 to march 2010. Near the end of March 2010, the growth stage of buds was 2 or 3 days earlier than that in an average year and the 50% lethal temperature increased to -4°C . This characteristic value for tea buds might be had a close relation with the severity of frost damage in the spring of 2010.