国立研究開発法人 国際農林水産業研究センター | JIRCAS

Modeling Winter Dormancy of Tea Buds and Simulation in Southern Japan

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

As part of the research aimed at elucidating the cause of low tea yields in the first crop in southern Japan, the relation of climatic conditions to winter bud dormancy was investigated using mature ‘Yabukita’ (Camellia sinensis (L.) O. Kuntze) plants at the Makurazaki Station (N 31° 16.1´) of the National Institute of Vegetable and Tea Science (NIVTS), Japan, as a model. The number of days required for flushing (RDF), when winter tea branches were kept under optimal artificial conditions (25°C, 14-hour daylength and 80% relative humidity), was used as an indicator for expressing the degree of winter bud dormancy. RDF was well predicted by the model [?aT?bD+c (T: mean temperature, D: daylength and a,b,c: parameters)] with the lowest standard error (1.71) and the lowest value of Akaike’s Information Criterion (AIC = 124.06). The simulation of winter bud dormancy indicated that tea grown in Okinawa located in the southernmost region of Japan (N 26° 13´) is highly susceptible to sudden flushing during winter. The results suggested that urgent measures should be taken to alleviate low tea yields in the first crop in southern Japan.

刊行年月2003-07-01
作成者OMAE HideTAKEDA Yoshiyuki
著者キーワード

Camellia sinensis

flushing

cold tolerance

daylength

公開者Japan International Research Center for Agricultural Sciences
データ作成日2003-07-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
37
3
開始ページ189
終了ページ194
DOI10.6090/jarq.37.189
権利Japan International Research Center for Agricultural Sciences
言語eng