Method of producing vole-resistant apple trees and trees produce

Details Method of producing vole-resistant apple trees and trees produce Method of producing vole-resistant apple trees and trees produce

1982-06-24

1985-05-14

Bagwill, Robert E.

Plant husbandry

Process

47 6, A01H 100

Patent

active

045163537

ABSTRACT:
The present invention relates to novel propagated apple trees having increased vole resistance and to methods for propagating such trees; and relates in one aspect to an apple tree having a vole-resistant rootstock and having growing thereon a desired apple bearing scion. In a preferred embodiment, the vole-resistant rootstock has a characteristic modifying distinct interstem interposed between the apple bearing scion and the rootstock. In another embodiment of the invention, the stocksystem is a composite stocksystem wherein a portion of the stocksystem is of a variety (seedling or other rootstock) distinct from the vole-resistant stock and wherein the portion of the rootstock above ground and to which the scion or interstem is grafted, comprises the novel vole-resistant stock. The nature of the companion rootstock is not critical and any compatible rootstock such as those already known in the art, for example, from "Delicious seedlings" can be employed. The systems proposed in the present invention present apple trunk tissue to voles which is unpalatable to them.

REFERENCES:
Proceedings of the Fourth Eastern Pine and Meadow Vole Symposium, Feb. 21-22 1980, pp. 43-49 and 50-54.
Wysolmerski et al., J. Am. Soc. Hort. Sci., 105:675-677, 1980.
1977 Transactions Ill. State Hort. Soc., 110:45-56, (1977).
Cummins et al., New York's Food & Life Sciences Bull. No. 41, May 1974, pp. 1-15.
Byers et al., J. Am. Soc. Hort. Sci., 102(2):201-203, (1977).

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