Relationship between Resistance to Vole Browsing and Content of Ether Extract in the Bark of Larch Species and Hybrids
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概要
- 論文の詳細を見る
We determined the survival rate of tree families produced by the intra- and interspecific crossing of larch species damaged by browsing of vole (Clethrionomys rufocanus bedfordiae Thomas) and the contents of ether extracts (EE) in their bark. The average survival of Larix gmelini var. japonica Pilg. (L. gmelini)×L. gmelini (G×G) was highest, followed by the hybrid L. gmelini×L. leptolepis Gordon (G×L). The families of the hybrid G×L, which is considered suitable for silviculture in Hokkaido, Japan, showed significant differences in survival rates, suggesting that it is possible to produce improved varieties of the hybrid which are more resistant to vole browsing. The EE contents of the bark were under strong hereditary control, and the rank of the EE content among the various families hardly fluctuated between the location of the test fields. The correlation coefficient between the survival rates and the EE contents was highly significant (r=0.89, n=24, p < 0.01), indicating that the EE content in the bark may be used as a possible index of resistance or susceptibility to vole browsing in larch plantations.
- 一般社団法人日本森林学会の論文
- 1998-05-16
著者
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Iizuka Kazuya
Hokkaido Breeding Office Forest Tree Breeding Center
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Hayashi Eiji
Hokkaido Breeding Office Forest Tree Breeding Center:(present)forest Tree Breeding Center
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Sukeno Shin-ichi
Oji Paper Co. Ltd., Forestry Research Institute, Kuriyama Research Center
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Kohno Kohzo
Hokkaido Breeding Office, Forest Tree Breeding Center
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Sukeno Shin-ichi
Oji Paper Co. Ltd. Forestry Research Institute Kuriyama Research Center
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Kohno Kohzo
Hokkaido Breeding Office Forest Tree Breeding Center
関連論文
- Variations of Growth and Wood Quality in Young Interspecies between Larix gmelinii var.japonica and L.leptolepis
- Relationship between Resistance to Vole Browsing and Content of Ether Extract in the Bark of Larch Species and Hybrids