期刊名称：Studia Universitatis Moldaviae: Stiinte Exacte si Economice
印刷版ISSN：1857-2073
电子版ISSN：2345-1033
出版年度：2008
期号：2(12)
页码：81-85
出版社：Moldova State University
摘要：An pot soil (cernoziom carbonated) culture experiment was conducted to determine the modification in carbohydratesand free amino acids content in soybean (cv. Zodiac) leaves in relation to phosphorus and iron nutrition under waterstress conditions. Soybean plants were exposed to drought for 14 days during flowering stage of development and thesamples were collected after stress period.The P-sufficient supply decreased the content of nonstructural carbohydrates (sucrose and hexose sugars) in leaves.This result was due to translocation of carbohydrates in sinks organs of roots and nodules. Iron supplemental nutritionwith phosphorus fertilizer stimulated the accumulation of the level of free amino acids and soluble sugars irrespective ofthe level of soil moisture. Water shortage induced accumulation level of free amino acids in leaves. The both applicationphosphorus and iron increased the synthesis of amino acids in inoculated as well as in non-inoculated soybean plants.Hence the experimental data further emphasize the physiological importance of adequate nutrition with phosphorus andiron to attenuate the drought impact on plant metabolism and productivity
