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題名 | 臺灣育成甘蔗品種莖部表皮類型之研究=Stem Epidermal Patterns of Taiwan Sugarcane Varieties |
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作者 | 鄭建磐; | 書刊名 | 中華農學會報 |
卷期 | 31 民49.09 |
頁次 | 頁34-41 |
關鍵詞 | 品種; 甘蔗; 莖部表皮類型; |
語文 | 中文(Chinese) |
英文摘要 | Stuies on the stem epidermal patterns of 43 F-varieties of Taiwan sugarcane were conducted. The materials were taken off from the internodes of middle portion of canes which had grown over 14 months and the examination was carried under microscope with the magnification of 480X with ten replications for each variety. The method for removal of the epidermis from underlying tissues, the six kinds of patterns and the criteria used for classification are mainly after ARTSCHWAGER'S description and with the following three additions: 1. Pattern la: The criteron of this pattern is that below 40% of the number of short cell groups lack silica cell. 2. Pattern 7: This addition is based on ARTSCHWAGER and BRANDES (page 52 Agricultural Handbook No. 122, USDA, 1958). The criteron is that the short cell groups are usually made up of one silica cell and two cork cells. 3. Pattern 8: In this experiment solitary silica cells present in many microscopic fields. These phenomena are not mentioned in previous literatures, hence, it is necessary to form a new pattern with the criteron of consisting more than 50% solitary silica cells of the short cell groups. All stem epidermal patterns are presented in these 43 varieties, but the different patterns are not equally abundant. Single pattern appears in F107, F114 and F116, each of the remaining forty varieties has two or more than two patterns to form combination types. F108, F146 and F148 have the largest number of components, each combined with five patterns. Patterns 1, 1a, 4, 6 and 7 are the most frequent. The number of stomata appearing on the epidermis of each variety is also not equally abundant. There are 6 varieties, namely F142 (20), F119 (13), F133 (12), F135 (11), F140 (11) and F124 (10), having more than ten stomata in 10 microscopic fields, 27 varieties with less than 10, and no one stoma appears in the remaining 10 varieties. The limit of the average width of long cells among these varieties is 10.36μ-17.92μ. The wider ones are F125 (17.92μ), F145(17.50μ) and F129(17.36μ), the narrower ones are F113(11.06μ), F112(10.78μ) and F144 (10.36μ). As to the average number of short-cell groups in ten microfields of each variety, the least is 32.0 (F118), the largest is 65.1(F108) and the most popular numbers are around 50. |
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