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タイトル: アスパラガス茎枯病に対する効果的な耕種的防除法の開発
著者: 橋下, 愛
ハシシタ, アイ
発行日: 11-Jun-2014
抄録: Stem blight caused by Phomopsis asparagi leads to considerable damage to asparagus production in Japan. I studied the effective cultural control of stem blight and obtained the follwing results. 1. The occurrence of this disease was observed in green asparagus fields in the southern, central, and northern parts of Hokkaido. 2. White asparagus field to the mound soil, there was no occurrence of the disease. 3. The occurrence of this disease was suppressed by pulling out the diseased stems or cutting all the stems. 4. Development of the symptoms of the disease can be inhibited by mounding the soil to a thickness of 20 cm above the rhizomes. 5. The breaking strength of asparagus spears cultured in the field where the soil was mounded was comparable to that of spears that were not treated. 6. There was no difference in the level of protodioscin in the treated and untreated spears. 7. The salicylic acid content in stems that emerged from mounded soil was higher than that in untreated stems. On the basis of the above-mentioned results, I believe that pulling out diseased stems, cutting all the stems, and mounding the soil are effective methods to cultural control this disease. I concluded that mounding the soil might lead to the development of a systemic acquired resistance in asparagus. These control methods could become effective when combined with other control methods.
URI: http://hdl.handle.net/10659/3411
学位授与年月日: 2013
学位名: 酪農学
学位授与機関: 酪農学園大学
出現コレクション:学位論文(修士)

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