頁籤選單縮合
題名 | 茶樹品種採摘芽茸毛分佈及其與收量及品質之相關=The Distribution of Plucking Leaf Hair of Tea Varieties and Its Correlation with Yield and Quality |
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作者 | 吳振鐸; 吳信淦; 馮鑑淮; | 書刊名 | 中華農學會報 |
卷期 | 24 民47.12 |
頁次 | 頁78-82 |
關鍵詞 | 茶樹品種; 採摘芽茸毛; 收量; 品質; |
語文 | 中文(Chinese) |
英文摘要 | The hair length and density of plucking leaf of fourty eight varieties of tea brush were measured in the summer of 1957. Generally speaking, the mean value of hair length was 542μ, X±2SE=740μ~344μ; while that of hair density was 9.7 hair/mm2, X±2SE=17.52 hair~1.18 hair/mm2. Varieties of Manipuri (326μ), Jaipuri (311μ), No.474(19 hair/mm2) and No.705 (19 hair/mm2) were beyound the upper or lower boundary as above mentioned. Varieties of Pei-mao-hu (1168.86μ), No.1509 (821.78μ) and No. 502 (17.18 hair/mm2) were also significantly longer or denser by adding another 17 varieties (including Pei-mao-hu and No.1509) in the distribution. The X of hair length was shifted to 581.57 μ, X±2SE=341.13μ819.99μ; and X of hair density to 10 hair/mm2, X±2SE to 2.37 hair/mm2~ 17.06 hair/mm2.(see Plate). The frequency distributions of hair length and density of P and F1 of controlled crossing were listed in table 1 and 2 respectively. Dominance was absent in these quantitative traits, the F1 appearing as a blend of the characters of the two parents. A series of independent genes for a given quantitative trait was assumed. All materials, except the Kyang and Hung-shin-dah-pun, used in this investigation were recorded their yields and quality; both black tea and Oolong tea manufactured. These average values of yields and quality were paired with given hair length or density to calculate their correlation coefficient (γ). The γ values, as shown in table 3, between hair length and Oolong tea quality and between hair density and black tea quality were highly significant and significant respectively. These significant meant that varieties of longer and denser plucking leaf hair would make the quality of tea better. The writers suggested that to select the new strains of longer and denser plucking leaf hairs among BCF1 was more efficient than among the segregated F2. |
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