頁籤選單縮合
| 題 名 | 在不同硝酸氮和銨氮比例下生長的菠菜,其切離菠葉以H[feaf]O、PEG6000或NaCl處理時的成分變化 |
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| 作 者 | 吳美鸞; | 書刊名 | 中華農學會報 |
| 卷 期 | 170 1995.06[民84.06] |
| 頁 次 | 頁89-103 |
| 分類號 | 435.241 |
| 關鍵詞 | 硝酸氮; 銨氮; 菠菜; 切離菠葉; N-NO[feb0]-; N-NH[feb2]+; N-organic; Relative turgidity; Chlorophyll; Proline; Soluble protein; Soluble carbohydrate; Reducing sugar; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 31天植齡的菠菜,在最後19天的生長期間,以三種硝酸氮和銨氮比例的營養液(N-NO₃⁻,mM/N-NH₄⁺,mM-45/0、22.5/22.5、0/45)分別澆灌後,其葉片、葉柄和全葉的鮮重和乾重、葉片面積、葉片數目、和最長葉柄長度的生長性狀為:以45/0營養液澆灌的菠菜為最重、最大、最多和最長;反之,以0/45營養液澆灌的菠菜為最輕、最小、最少和最短;而以22.5/22.5營養液澆灌的菠菜,具有居間的生長性狀數值。因此,菠菜在硝酸氮(45/0)中的生長,要比在銨氮(0/45)中的生長良好。 在每克鮮重中,以相同硝酸氮和銨氮比例營養液澆灌的菠菜,其菠葉葉片比其菠葉葉柄含有較多的成分--葉綠素、脯胺酸、可溶性蛋白質、可溶性醣類、和還原糖;並以0/45比以45/0營養液澆灌的菠菜,其菠葉葉片和菠葉葉柄含有顯著增多的葉綠素(只限於菠葉葉柄)、脯胺酸、可溶性蛋白質、可溶性醣類、和還原糖。至於,在每克乾重中,以相同硝酸氮和銨氮比例營養液澆灌的菠菜,其菠葉葉片比其菠葉葉柄含有較少的硝酸氮;菠葉葉片和菠葉葉柄中都只含有微量的銨氮;並以0/45比以45/0營養液澆灌的菠菜,其菠葉葉片和菠葉葉柄含有較多的銨氮和有機氮。 由31天植齡菠菜所切離菠葉的葉片和葉柄,在20℃的黑暗中,分別以H₂O、-2.0MPa PEG6000、-2.0MPa NaCl三種溶液處理48小時後的成分變化為: (1)在切離菠葉的葉片和葉柄中,其相對膨潤度都呈現顯著地增加,且其增加幅度由大到小依序以H₂O、-2.0MPa PEG6000和-2.0MPa NaCl的處理者。 (2)以0/45營養液澆灌的菠菜中,其切離菠葉葉片的脯胺酸,因三種溶液的處理呈現顯著地增加,但其增加幅度不因處理溶液而呈現顯著地差異;其切離菠葉葉柄的脯胺酸,不因三種溶液的處理呈現顯著地差異。 (3)以45/0營養液澆灌的菠菜中,其切離菠葉葉片的可溶性蛋白質,不因三種溶液的處理呈現顯著地差異,但其切離菠葉葉柄的可溶性蛋白質,則因H₂O和-2.0MPa PEG6000二種溶液的處理而呈現顯著地增加;以22.5/22.5營養液澆灌的菠菜中,其切離菠葉葉片和切離菠葉葉柄的可溶性蛋白質,則因-2.0MPa PEG6000和-2.0MPa NaCl二種溶液的處理而呈現顯著地減少;以0/45營養液澆灌的菠菜中,其切離菠葉葉片的可溶性蛋白質,則因-2.0MPa PEG6000和-2.0MPa NaCl二種溶液的處理而呈現顯著地增多。 (4)以三種硝酸氮和銨氮比例養液澆灌的菠菜中,其切離菠葉葉片和切離菠葉葉柄的可溶性醣類,都因三種溶液的處理呈現顯著地減少,但其減少幅度不因處理溶液而呈現顯著地差異。 (5)以三種硝酸氮和銨氮比例養液澆灌的菠菜中,其切離菠葉葉片的還原糖,因三種溶液的處理呈現顯著地增加,甘其增加幅度由大到小依序為H₂O、-2.0MPa NaCl和-2.0MPa PEG6000的處理者;其切離菠葉葉柄的還原糖,則因2.0MPa PEG6000的處理而呈現顯著地減少。 |
| 英文摘要 | The 31 days-old spinach (Spinacia oleracea L. cv. Know-you 902 F₁ hybrid) plants were irrigatedw ith three kinds of nutrients (N-NO₃⁻/N-NH₄⁺ at mM-45/0、22.5/22.5、0/45) for the last 19 growing days, respectively. The leaf growth parameters that included the fresh weights and dry weights of blades、petioles and whole leaves、leaf area、leaf number and the length of longest petioles were determined. Each spinach plantlet with 45/0 and 0/45 nutrient had the highest and the lowest values of these leaf growth parameters, respectively; wherease, each spinach plantlet with 22.5/22.5 nutrient had the intermediate values of them. Therefore, the spinach with 45/0 nutrient grew better than that with 0/45 nutrient. On the basis of leaf fresh weight, the contents of chlorophyll、proline、soluble protein、soluble carbohydrate、and reducing sugar were significantly more in the blades than their contents in the petioles of the spinach with the same nutrient; the contents of these above constituents were also significantly more in the leaves of the spinach with 0/45 nutrient than their contents in the leaves of the spinach with 45/0 nutrient. On the basis of leaf dry weight, the contents of (N-NO₃⁻ were significantly less in the bladed than their contents in the petioles of the spinach with the same nutrient; the contents of N-NH₄⁺ were scarce in both blades and petioles of the spinach; both contents of N-NH₄⁺ and N-organic were significantly more in the leaves of the spinach with 0/45 nutrient than their contents in the leaves of the spinach with 22.5/22.5 or 45/0 nutrient. The leaves were detached from the 31 days-old spinach plants that irrigated with each of three kinds nutrients for the last 19 growing days, and then incubated with the solutions of H₂O、-2.0MPa PEG6000 or -2.0MPa NaCl in the dark at 20°C for 448hours, respectively. After these three kinds of incubation treatments, the changes of some constituents in the detached spinach leaves were as follow: (1) The relative turgidities of the detached blades and petioles of spinach were significantly increased by the incubation treatments, and their increasments were declining by the order of the incubation treatments with H₂O、-2.0MPa PEG6000 or -2.0MPa NaCl. (2) The contents of praline were and were not significantly increased by the incubation treatments in the detached blades and petioles of the spinach with 0/45utirent, respectively. And the increasements of praline were not significantly different among these three incubation treatments. (3) The contents of soluble protein were not affected significantly by the incubation treatments in the detached blades of the spinach with 45/0 nutrient; their contents were significantly increased by the incubation treatments with H₂O or -2.0 MPa PEG6000 in the detached petioles of the spinach with 45/0 nutrient; their contents were significantly decreased by the incubation treatments with -2.0 MPa PEG6000 or -2.0MPa NaCl in the detached blades and petioles of the spinach with 22.5/22.5 nutrient; their contents were significantly increased by the incubation treatments with -2.0 MPa PEG6000 or -2.0 MPa NaCl in the detached blades of the spinach with 0/45 nutrient. (4) The contents of soluble carbohydrate were significantly decreasedby the incubation treatments in the detached blades and petioles of the spinach with each of these three nutrient, and their decreasements were not significantly different among these three incubation treatments. (5) The contents of reducing sugar were significantly increased by the incubation treatments in the detached blades of the spinach with each of these three nutrients, and their increasements were declining by the order of the incubation treatments with H₂O、-2.0 MPa Nacl or -2.0 MPa PEG6000; whereas, the contents of reducing sugar were significantly decreased by the incubation treatments with -2.0 MPa PEG6000 in the detached petioles of spinach. |
本系統中英文摘要資訊取自各篇刊載內容。