Induced resistance to the common cutworm, Spodoptera litura(Lepidoptera: Noctuidae) in three soybean cultivars
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概要
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We investigated induced resistance to the common cutworm, Spodoptera litura, in three soybean cultivars, 'Bay', 'Fukuyutaka', and 'Himeshirazu'. Levels of induced resistance caused by S. litura herbivory varied among the cultivars. High induced resistance was found in 'Bay', with less food consumption by larvae (78.2%), less larval weight gain (67.3%), longer larval duration (114.2%), and lighter pupal weight (79.7%) than on uninjured plants (100%). The same trends were observed in larvae feeding on leaves of previously damaged plants of 'Fukuyutaka', which is susceptible to S. litura, but only larval duration was significantly prolonged (107.3%). No apparent effect of previous herbivory on plants was found in 'Himeshirazu', which is constitutively resistant to S. litura. Prior mechanical injury to leaves of 'Bay' also decreased subsequent food consumption by larvae (82.9%), but had little effect on larval growth.
- 日本応用動物昆虫学会の論文
- 2007-05-25
著者
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WADA Takashi
National Agricultural Research Center for Kyushu Okinawa Region (KONARC)
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ENDO Nobuyuki
National Agricultural Research Center for Kyushu Okinawa Region (KONARC)
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Tojo Sumio
Faculty Of Agriculture Saga University
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Endo Nobuyuki
National Agricultural Research Center For Kyushu Okinawa Region
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Wada Takashi
National Agricultural Res. Center For Kyushu Okinawa Region
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HIRAKAWA Ikumi
Faculty of Agriculture, Saga University
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Hirakawa Ikumi
Faculty Of Agriculture Saga University
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Wada Takashi
National Agricultural Research Center For Kyushu Okinawa Region
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