The main biological properties of superoxide dismutase (EC 1.15.1.1 abbreviated to SOD) in the extract of the above-ground portion of rice-seeding were studied.

本文研究了稻苗地上部分提取液中超氧物歧化酶(Ec 1.15.1.1简称SOD)的主要生化特性。

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At seeding stage, chlorophyll content and SOD activity decreased, while soluble protein, soluble sugar, praline, amino acid content and MDA content increased.

在苗期，叶绿素含量和SOD酶活性下降，可溶性蛋白、可溶性糖、脯氨酸、游离氨基酸和MDA含量上升。

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Screened leaf age and MDA content identification indexes of cold tolerance in seeding stage, photosynthetic rate and SOD activity were screened in flowering stage.

在苗期筛选出了叶龄、MDA两个耐冷性鉴定指标，在开花期筛选出了光合速率和SOD活性两个耐冷性鉴定指标。

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