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Influence of DA-6 on cold resistance of rice seedling

Ying Liang

Open publisher page 2 citations

Abstract

The seed of rice(Oryza sativa L.)was treated with 10 μg/L,50 μg/L,10 μg/L,20 μg/L DA-6 solution and the effects of DA-6 on cold resistance of rice seedling were studied.It was found that each treatment increased cold resistance of rice seedling,and 10 μg/L DA-6 treatment was much better.With CK to compare,10 μg/L DA-6 treatment makes the survival percentage of seedling under cold stress increase 155%,electrolyte leakage and malondialdehyde(MDA)contents decrease 129%and70%,and the activities of superoxide dismutase(SOD),catalase(CAT)increase 379%and228%,and the content of soluble sugar,soluble protein and proline increase 158%,129%,245%,and the content of chlorophyll,photosynthetic rate,rooting ability increase 235%,645%,289%.

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What this paper is about

The seed of rice(Oryza sativa L.)was treated with 10 μg/L,50 μg/L,10 μg/L,20 μg/L DA-6 solution and the effects of DA-6 on cold resistance of rice seedling were studied.It was found that each treatment increased cold resistance of rice seedling,and 10 μg/L DA-6 treatment was much better.With CK to compare,10 μg/L DA-6 treatment makes the survival percentage of seedling under cold stress increase 155%,electrolyte leakage and malondialdehyde(MDA)contents decrease 129%and70%,and the activities of superoxide dismutase(SOD),catalase(CAT)increase 379%and228%,and the content of soluble sugar,soluble protein and proline increase 158%,129%,245%,and the content of chlorophyll,photosynthetic rate,rooting ability increase 235%,645%,289%.

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Available abstract

The seed of rice(Oryza sativa L.)was treated with 10 μg/L,50 μg/L,10 μg/L,20 μg/L DA-6 solution and the effects of DA-6 on cold resistance of rice seedling were studied.It was found that each treatment increased cold resistance of rice seedling,and 10 μg/L DA-6 treatment was much better.With CK to compare,10 μg/L DA-6 treatment makes the survival percentage of seedling under cold stress increase 155%,electrolyte leakage and malondialdehyde(MDA)contents decrease 129%and70%,and the activities of superoxide dismutase(SOD),catalase(CAT)increase 379%and228%,and the content of soluble sugar,soluble protein and proline increase 158%,129%,245%,and the content of chlorophyll,photosynthetic rate,rooting ability increase 235%,645%,289%.

Key concepts: Seedling, Catalase, Proline, Oryza sativa, Malondialdehyde, Superoxide dismutase, Sugar, Chlorophyll

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