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| 題 名 | 乾旱處理對大豆氣孔形態發生之影響 |
|---|---|
| 作 者 | 廖松淵; 陳清義; | 書刊名 | 中華農學會報 |
| 卷 期 | 151 1990.09[民79.09] |
| 頁 次 | 頁36-46 |
| 分類號 | 434.212 |
| 關鍵詞 | 大豆; 形態; 氣孔; 乾旱處理; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 利用顯微鏡觀察法,測定供試各大豆品種在長期乾旱處理狀況下,其氣孔密度、大小,孔隙大小、孔隙所佔面積百分比之變化,並比較品種間對乾旱處理對大豆氣孔形態發生之影響,及其與耐旱性之關係。所得結果摘述如下: 1.不缺水株之下表皮氣孔密度(No. of stomata/mm²)平均為280,恒大於上表皮之102。上、下表皮氣孔密度相差約3倍。 2.嚴重缺水狀況下,氣孔密度平均增加18%,但氣孔大小則比不缺水株,平均小約27%。 3.不缺水株上表皮之單一氣孔,開孔孔隙比下表皮大2~3 μm²,但因下表皮氣孔密度大於上表皮,故下表皮之氣孔孔隙百分比(pore area)反而大於上表皮。 4.AGS 62品種之氣孔孔隙大小及氣孔孔隙百分比,不論缺水與否恒為供試品種之冠。Native 13品種則易受缺水而減小其孔隙。 |
| 英文摘要 | Stomatal frequency, dimension, size of aperture and pore area of six soybean varieties, including Dah liarn, Wakashima, Native 13, AGS 62, Sanluis and 66-F-2-2, under long-term drought stress were studied by microscopic method in order to study the responses of stomatal morphogenesis to drought stress. The results are summarized as follows. 1. Abaxial stomatal frequency of well-watered leaf was 280 and adaxial frequency was 102 per mm². 2. Stomatal frequency increased 18% and stomatal dimension decreases 27% under severe drought stress. 3. Single stomatal aperture of well-watered adaxial epidermis was 2-3μm² greater than that of abaxial epidermis. But abaxial frequency was greater, so that pore area of abaxial epidermis was greater. 4. Whether drought stressed or not, both stomatal aperture and pore area of AGS 62 were the greatest among six varieties. Pore area of Native 13 was easily affected by drought stress. 5. Responses of stomatal morphogensis to drought stress differed with varieties. These response could be used as indicators for selecting drought resistance. |
本系統中英文摘要資訊取自各篇刊載內容。