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頁籤選單縮合
題名 | 臺灣茶樹種原葉部性狀之調查及遺傳變異分析=Investigation of Leaf Traits and Genetic Variation Analysis of Tea Germplasm in Taiwan |
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作者 | 胡智益; 郭冠黎; 蔡右任; 林順福; | 書刊名 | 臺灣茶業研究彙報 |
卷期 | 24 民94.11 |
頁次 | 頁1-20 |
分類號 | 434.814 |
關鍵詞 | 茶樹; 葉部性狀; 遺傳變異; 種原鑑定; Tea; Leaf character; Genetic variation; Germplasm identification; |
語文 | 中文(Chinese) |
中文摘要 | 本研究調查保存在茶業改良場及各分場品種園的茶樹種原,合計123個種原,調查春季新生枝條的心芽及第四片成熟葉片特性,調查項目包含芽色、葉色、葉形、葉尖形態、葉基形態、芽葉茸毛、葉緣齒形等7個質的性狀及葉長、葉寬、葉厚、節間長、葉面積、葉長寬比、葉緣平均齒數、葉脈角度等8個量的性狀。由於各種類葉形性狀之頻度分布較均勻,可做為種原鑑別之初步或快速鑑別之標準,而其他所調查之6個質的性狀亦具有遺傳變異,可輔助種原區分。葉寬及葉長等量的性狀因具有較大之遺傳變異,葉厚及成熟業長寬比性狀較穩定,可做為種原鑑別之標準。多數量的性狀為彼此相關,故在有限人力資源下調查兩個相關性狀時,可考慮優先調查遺傳變異性大且易於評量之性狀。本試驗所建立臺灣現有茶樹種原的葉部性狀資料庫,可做為茶樹遺傳歧異性分析、種原管理、種原鑑別及雜交育種之參考。 |
英文摘要 | One hundred and twenty-three germplasm of tea preserved in Tea Research and Extension Station and its Branches were investigated in this study. According to 7 qualitative traits of leaf, including bud color, leaf color, leaf shape, apex shape, base shape, bud hair and morphology of leaf teeth, and 8 quantitative trains of leaf, including leaf length, leaf width, leaf thickness, internode length, leaf area, length/width ration, number of leaf teeth and angle of vein, we have established database of leaf traits for tea germplasm in Taiwan. The leaf shape is suited for primiary or fast germplasm identification due to the similar frequencies of various types. In addition, the remaining 6 qualitative traits with genetic variation are helpful for germplasm identification. As for the quantitative traits, wide genetic variation was observed in leaf width, leaf length, and more stability was observed in leaf thickness, and length/width ratio suggesting good criteria for germplasm identification. Most of the quantitative traits are usually correlative. Therefore, when the labor support is limited and two correlative traits need to be investigated, the trait with greater genetic diversity and more convenience in evaluation will have higher priority in the investigation. The database established from this study could provide information for genetic diversity analysis, germplasm management, germplasm identification, and cross breeding of tea plants. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。