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Pear and quince diseases

, : Pear and quince diseases. Acta Horticulturae (44): 119-146

a. Thomsen, A. (Stat. Plantepat. Forsoeg, Lyngby, Denmark). Crop reduction in pear trees caused by virus infection (119-122). Four virus diseases (rough bark of pears, cvs. Beurre Hardy, Bosc, Clara Frijs and Williams. Rough bark disease caused considerable stunting and fruits from stony pit affected trees were valueless.b. Fleisher, Z.; Pappo, S.; Arnstein, Z. (Min. Agric., Jaffa, Israel). Transmissible and non transmissible fruit deformation of quince (123-130).

Accession: 000454407

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Related references

Brossier, J., 1965: The selection of root-stocks for pear from natural populations of quince. II. Breeding of quince rootstocks for pear. Clones from Provence have been found more vigourous than those from Angers but the range in vigour is very restricted, which is regarded as due to at least 90% self pollination in quince populations. Little improvement can be expected from clonal...

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