Effects of Insect Predation on Hypocotyl Survival and Germination Success of Mature Quercus variabilis Acorns
スポンサーリンク
概要
- 論文の詳細を見る
The rates of hypocotyl and radicle survival and of germination success were investigated in mature acorns of Quercus variabilis Blume in relation to endosperm loss due to seed insects. The acorns were damaged by curculio weevils (Coleoptera : Curculionidae) and moths, including tortricid moths (Lepidoptera : Tortricidae); the former were more abundant than the latter. Acorns damaged by curculio weevils showed a significantly lower germination rate when there was a large endosperm loss than the rate for sound acorns. The survival rate of the hypocotyl and radicle also decreased as endosperm loss increased. These results suggest that acorn germination is directly inhibited by damage to the hypocotyl and radicle, which depends on the amount of endosperm eaten by the weevils. However, the germination rate of acorns with hypocotyl and radicle was consistently high, irrespective of the degree of endosperm loss, which suggests that weevil-damaged acorns probably germinate, provided the hypocotyl and radicle survive until the cessation of damage.
- 一般社団法人日本森林学会の論文
- 2000-02-16
著者
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Fukumoto H
Laboratory Of Forest Protection School Of Agricultural Sciences Nagoya University
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Fukumoto Hiroshi
Laboratory Of Forest Protection Graduate School Of Bioagricultural Sciences Nagoya University
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Kajimura Hisashi
Laboratory Of Forest Protection School Of Agricultural Sciences Nagoya University
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Kajimura Hisashi
Laboratory Of Forest Protection Graduate School Of Bioagricultural Sciences Nagoya University
関連論文
- Effects of ingredients and structure of semi-artificial diet on the reproduction of an ambrosia beetle, Xyleborus pfeili (Ratzeburg) (Coleoptera: Curculionidae: Scolytinae)
- Seed-insect Fauna of Pre-dispersal Acorns and Acorn Seasonal Fall Patterns of Quercus variabilis and Q. serrata in Central Japan
- Guild structures of seed insects in relation to acorn development in two oak species
- Effects of Insect Predation on Hypocotyl Survival and Germination Success of Mature Quercus variabilis Acorns
- Effects of asynchronous acorn production by co-occurring Quercus trees on resource utilization by acorn-feeding insects