The effect of nitrogen dosage on starch content and key enzyme activity in composing starch in kernels of spring maize was studied.
以不同品种春玉米为试验材料，研究氮肥施用量对春玉米子粒淀粉含量及淀粉合成关键酶活性的影响。
There are C3 and C4 cycle in the wheat cycle system and the key enzyme activity affects the first step reactions directly in photosynthetic carbon cycle.
在小麦碳循环体系中C3和C4途径共存，而这两个途径中的关键酶的活性的大小直接影响到光合碳循环的第一步反应。
Yield, nitrogen efficiency, characterization of nitrogen uptake and key enzyme activity of nitrogen assimilation were studied in wheat varieties with different nitrogen efficiencies.
以具有典型特征的不同氮效率小麦品种为材料，研究丰、缺氮条件下的籽粒产量、氮效率、氮素吸收特性和氮素吸收同化关键酶活性。
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