エンドウヒゲナガアブラムシの4種モルフにおける寿命および胚子発育に及ぼす飢餓の影響

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  • 辻 博夫
    岡山大学農業生物研究所 伊丹市経済労働部産業振興室農政課
  • 河田 和雄
    岡山大学農業生物研究所

書誌事項

タイトル別名
  • Effects of starvation on life span and embryo development of four morphs of pea aphid (Acyrthosiphon pisum (Harris)
  • エンドウヒゲナガアブラムシの４種モルフにおける寿命およびはい子発育に及ぼす飢餓の影響
  • エンドウヒゲナガアブラムシ ノ 4シュ モルフ ニ オケル ジュミョウ オヨビ

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説明

Mean fecundity, survival rate, volume and number of embryos in adults were analyzed for the apterous and alate four morphs of Acyrthosiphon pisum (HARRIS) reared on broad bean, Vicia faba L. at 12±1°C under two different conditions, normal and starvation. The apterous virgino-parous females produced 98.9 larvae whereas the alate virginoparous females produced 70.0 larvae per female. Apterous virginoparous females produced a larger number of larvae than the alate virginoparous females. Larval period of the alate virginoparous females was about 1.9 days longer than that of the apterous females. Age specific survival of the virginoparous morphs was longer than that of the sexual morphs. Starved alate, male and virginoparous females, of the clone lived longer than the apterous, oviparous and virginoparous females. Under starvation conditions, alate males lived for a maximum period of 14 days and they lived longer than the apterous forms. Immediately after the final moult, the apterous virginoparous females produced a larger number of embryos than the alate virginoparous females. Embryos in the parents developed speedily after the final moult. Females produced many small embryos, under starvation conditions as compared with the normal conditions.

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