Author：Huang Shih-Huang^1*

Abstract：

    The main purpose of this study was to establish the management and restoration techniques for papaya to reduce flooding lose and damage. The result showed that arbuscular mycorrhizal fungi inoculation and it combined with neutralized phosphorus acid treatment can reduce the flooding injury. We used 4 kinds of papaya seedlings to test flooding tolerance. The leaves of the true seedlings turned yellowing and were falling more quickly than other seedlings, but the growth of new roots of true seedlings were higher than other seedlings after flooding. We set five flooding injury indexes according to the wilting and damage degree on the papaya plants. Using defoliation treatment on the next day after flooding can reduce flooding damage degree of papaya and increase the recovery growth of damaged plants. Using defoliation and fruit thinning can reduce flooding injury and death rate of damaged papaya plants. This restoration technology also can accelerate the regrowth of leaf, flower and fruit of damaged papaya plants.

Keywords: Papaya, Flooding, Arbuscular mycorrhizal Fungi, Phosphorous Acid, Restoration technology.

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¹ Tainan District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan.
* Corresponding Author, Email: shhuang@mail.tndais.gov.tw; Tel: 06-5912901#508.

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