查詢結果分析
來源資料
頁籤選單縮合
| 題 名 | 高鹽分灌溉水對狼尾草生長之影響=Effect of Saline Irrigation Treatment on the Growth of Napier Grass |
|---|---|
| 作 者 | 蔡立中; 李姿蓉; 鍾萍; | 書刊名 | 畜產研究 |
| 卷 期 | 58:3 2025.09[民114.09] |
| 頁 次 | 頁172-182 |
| 分類號 | 437.113 |
| 關鍵詞 | 狼尾草; 含鹽灌溉水; 耐鹽性; 生理指標; Napier grass; Saline irrigation water; Salt tolerance; Physiological parameter; |
| 語 文 | 中文(Chinese) |
| DOI | 10.6991/JTLR.202509_58(3).0003 |
| 中文摘要 | 臺灣國產牧草自給率偏低,若能將濱海土地開發為新生耕地種植牧草,不僅能增加種植面積及國產牧草之供 給,還能活化閒置土地。本研究以狼尾草 (Pennisetum purpureum Schum.) 台畜草三號、八號及九號作為研究材料, 以澆灌 A. 0% ( 對照組 )、B. 0.3%、C. 0.6% 及 D. 1% 之氯化鈉 (Sodium chloride, NaCl) 溶液來模擬狼尾草生長於不 同鹽分環境,調查其品質及產量,並配合生理指標評估其生長狀況,以評估不同狼尾草品種之耐鹽性。調查結果顯 示三個狼尾草品種於 0.6% 與 1% NaCl 鹽水澆灌處理之鮮重產量皆顯著低於對照組。將 SPAD 值 (soil-plant analysis development value) 及電解質滲漏率 (Electrolyte leakage rate) 分別與乾物產量進行相關性分析,其相關係數皆接近或 大於 0.7,屬於高度相關。因此 SPAD 值及電解質滲漏率皆可很好地表現狼尾草於鹽分逆境下產量之改變。狼尾草 植體營養成分受澆灌鹽水影響而改變,水溶性碳水化合物及澱粉含量在澆灌鹽水後顯著降低,鉀、鈣及鈉含量則隨 著處理組鹽度提高而增加。臺灣南部沿海地下水鹽化嚴重之區域,其地下灌溉水電導度 (electrical conductivity, EC) 值最高約為 3 mS/cm。在本研究中,0.3% NaCl 處理組之灌溉水 EC 值約為 6 mS/cm,而三個狼尾草品種之乾物產量 皆與其對照組無顯著差異,顯示狼尾草應具有承受臺灣南部沿海含鹽灌溉水鹽度之潛力。然而本研究僅探討澆灌鹽 水之影響,實際種植於鹽土環境對狼尾草之影響仍待進一步研究闡明。 |
| 英文摘要 | The self-sufficiency rate of domestic forage crops in Taiwan is relatively low. The development of coastal lands into new farmlands for cultivation of forage crops not only will increase the planting area and the supply of domestic forage crops but also revitalize idle farmlands. The study used Napier grass (Pennisetum purpureum Schum.) Taishiu grass No. 3, 8, and 9 (NP cv. TS 3, 8, 9) as study materials, which were irrigated by A. 0% (control), B. 0.3%, C. 0.6%, and D. 1% sodium chloride (NaCl) solution. The forage quality and yields of Napier grass growing in environments of different salinity were investigated and evaluated for the salt tolerance of different varieties of Napier grass by physiological parameters. The results showed that the yields of all three varieties of Napier grass in 0.6% and 1% NaCl treatment were significantly lower than those in control groups. The correlation analysis was conducted between SPAD (Soil-plant analysis development) value and dry matter yield, and between electrolyte leakage rate and dry matter yield. The results showed that both correlation coefficients were approaching or exceeding 0.7, indicating a strong correlation. Therefore, both SPAD value and electrolyte leakage rate can well express the changes in yields of the Napier grass in salt stress. The nutritional contents of the Napier grass were affected by saline irrigation. Water soluble carbohydrate contents of all varieties in treatment groups were significantly lower than those of control groups. The potassium (K), calcium (Ca), and sodium (Na) contents of the Napier grass increased with the increase of salinity of the treatment groups. In southern Taiwanese and along the coast of serious groundwater salinization, the highest electrical conductivity (EC) value of the underground irrigation water is approximately 3 mS/cm. In this study, the EC value of irrigation water in 0.3% NaCl treatment group was approximately 6 mS/cm, and the dry matter yields of all the Napier grass varieties did not show significant difference from those in the control groups, indicating that Napier grass should be able to sustain the saline irrigation water in southern Taiwan and along the coast. However, this study merely explored the impact of saline irrigation, while the actual impact on Napier grass planting on salt soil remained for further clarification in the future. |
本系統中英文摘要資訊取自各篇刊載內容。