Estimation of Debiraki-Day of Tea Shoot
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概要
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1. It was proved that a linear regression was existed between the plucking date of the variety "Tamamidori" in the 1st season and log of "Shinga-ritsu" (% of pekoe in the plucked leaves).<BR>The Debiraki-day (the last day when all of the plucked tea leaves maintained pekoes) was estimated and its fiducial limit was computed in every year from 1949 to 1954.<BR>2. The Debiraki-day was influenced by the atmospheric temperature since March. Especially it was likely that the Debiraki-day was decided by the sum of daily average temperature during a month from the end of March to the middle of April.<BR>The Debiraki-day in this year (1956) estimated from the regression equation upon average temperature quite closely coincided with the observed data. (Aug. 23, 1956)
- 日本茶業技術協会の論文
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