Aerobic rice has the advantage of saving water. Most published work has focused on improving its yield, while few reported on its micronutrient status. In fact, Fe deficiency is a common nutritional problem in the pro...Aerobic rice has the advantage of saving water. Most published work has focused on improving its yield, while few reported on its micronutrient status. In fact, Fe deficiency is a common nutritional problem in the production of aerobic rice. Short- term hydroponic culture experiments were conducted to study the response of aerobic rice to Fe deficiency and the effect of root exudates from Fe-deficient wheat on its Fe uptake ability. The results indicate that the amount of phytosiderophores (PS) released from aerobic rice did not increase under Fe deficient conditions. The Fe(III) reducing capacity of Fe-deficient aerobic rice did not increase and the solution pH did not decrease significantly. What's more, no obvious swelling was observed in the root tips. Aerobic rice did not show special responses to improve their Fe nutrition under Fe deficiency as both strategy I and II plants though they were very sensitive to Fe deficiency. This may be a reason which causes Fe deficiency problem in aerobic rice. However, root exudates from Fe-deficient wheat (PSw) could improve its Fe nutrition in the presence of insoluble Fe(OH)3. This suggests that aerobic rice could utilize Fe activated by PSw.展开更多
In accordance with the requirements of the State Council for furtherstrengthening the macro-management of the contracting of internationalcommercial loan, this set of measures is formulated hereby with the intention o...In accordance with the requirements of the State Council for furtherstrengthening the macro-management of the contracting of internationalcommercial loan, this set of measures is formulated hereby with the intention of regulating the financing acts; reinforcing the foreign debtsmangement of our country and utilizing the foreign capital more efficiently. Article 1 The project financing herewith refers to the raising offoreign exchange fund abroad in the name of construction projects withinthe country, and the foreign debts shall be rapaid by the expected incomeand the liability of the assets of the project. It shall bear the followingcharacteristics: (1)The creditor has no right of recourse to the assets and incomeoutside the construction project. (2)Domestic institutions shall not mortgage, hypothecate or clearoff the debts with assets, rights and interests as well as income outside theconstruction project. (3)Domestic institutions shall not provide any kinds of financingguarantee. Article 2 The project financing shall apply to infrastructure constructions such as power generation installations, highways, bridge,展开更多
基金supported by National Basic Research Program of China (973 Program, 2009CB118605)the National Natural Science Foundation of China (30571106)the Innovative Group Grant of Natural Science Foundation of China (30821003)
文摘Aerobic rice has the advantage of saving water. Most published work has focused on improving its yield, while few reported on its micronutrient status. In fact, Fe deficiency is a common nutritional problem in the production of aerobic rice. Short- term hydroponic culture experiments were conducted to study the response of aerobic rice to Fe deficiency and the effect of root exudates from Fe-deficient wheat on its Fe uptake ability. The results indicate that the amount of phytosiderophores (PS) released from aerobic rice did not increase under Fe deficient conditions. The Fe(III) reducing capacity of Fe-deficient aerobic rice did not increase and the solution pH did not decrease significantly. What's more, no obvious swelling was observed in the root tips. Aerobic rice did not show special responses to improve their Fe nutrition under Fe deficiency as both strategy I and II plants though they were very sensitive to Fe deficiency. This may be a reason which causes Fe deficiency problem in aerobic rice. However, root exudates from Fe-deficient wheat (PSw) could improve its Fe nutrition in the presence of insoluble Fe(OH)3. This suggests that aerobic rice could utilize Fe activated by PSw.
文摘In accordance with the requirements of the State Council for furtherstrengthening the macro-management of the contracting of internationalcommercial loan, this set of measures is formulated hereby with the intention of regulating the financing acts; reinforcing the foreign debtsmangement of our country and utilizing the foreign capital more efficiently. Article 1 The project financing herewith refers to the raising offoreign exchange fund abroad in the name of construction projects withinthe country, and the foreign debts shall be rapaid by the expected incomeand the liability of the assets of the project. It shall bear the followingcharacteristics: (1)The creditor has no right of recourse to the assets and incomeoutside the construction project. (2)Domestic institutions shall not mortgage, hypothecate or clearoff the debts with assets, rights and interests as well as income outside theconstruction project. (3)Domestic institutions shall not provide any kinds of financingguarantee. Article 2 The project financing shall apply to infrastructure constructions such as power generation installations, highways, bridge,