イネカラバエの生態型に関する2・3の観察

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タイトル別名
  • Further Observations on the Ecotype Formation in the Rice Stem Maggot
  • イネカラバエ ノ セイタイガタ ニ カンスル 2 , 3 ノ カンサツ エイブン

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In the spring generation, considerable difference of the larval development was found between two regional stocks. The progenies from the three-generation area developed rapidly and those from the two-generation area slowly. In the cross between two regional stocks, the larval development in the hybrid generations varied widely, but it resembled to that of the maternal parent. The three-generation stock persisted its inherent characters over the experimental period of 3 years after being transferred into the two-generation area. From these results the existence of the two distinct geographical ecotypes in the rice stem maggot was discussed.

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