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2000•Journal of Central China Normal UniversityRequires access

Mechanism study on effect of SODMC on cold-tolerance of rice seedlings

XU Wen-lian

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Abstract

In this paper, the effect of SODMC on cold-tolerance of rice seedlings was inverstigated. The rice was treated with a certain concentration of SODMC (2.5 mg/L ~5.0 mg/L) by the way of soaking and spraying. The rice seedlings were treated by chilling stress (5℃±1℃) when they were in two-leaf-one-leaflet period. The results are as follows: SODMC can keep the high SOD activity, Lower MDA content and lower conductivity of rice seedlings after chilling stress. the results show the protective role of SOMDC, but a little higher concentration of SODMC (7.5 mg/L) may inhibit the growth of seedlings.

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What this paper is about

In this paper, the effect of SODMC on cold-tolerance of rice seedlings was inverstigated. The rice was treated with a certain concentration of SODMC (2.5 mg/L ~5.0 mg/L) by the way of soaking and spraying. The rice seedlings were treated by chilling stress (5℃±1℃) when they were in two-leaf-one-leaflet period. The results are as follows: SODMC can keep the high SOD activity, Lower MDA content and lower conductivity of rice seedlings after chilling stress. the results show the protective role of SOMDC, but a little higher concentration of SODMC (7.5 mg/L) may inhibit the growth of seedlings.

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Available abstract

In this paper, the effect of SODMC on cold-tolerance of rice seedlings was inverstigated. The rice was treated with a certain concentration of SODMC (2.5 mg/L ~5.0 mg/L) by the way of soaking and spraying. The rice seedlings were treated by chilling stress (5℃±1℃) when they were in two-leaf-one-leaflet period. The results are as follows: SODMC can keep the high SOD activity, Lower MDA content and lower conductivity of rice seedlings after chilling stress. the results show the protective role of SOMDC, but a little higher concentration of SODMC (7.5 mg/L) may inhibit the growth of seedlings.

Key concepts: Horticulture, Cold tolerance, Chemistry, Cold stress, Rice plant, Biology, Botany, Biochemistry

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