Library Catalogue

Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104182
Title Onderzoek over de door Phoma apiicola Klebahn veroorzaakte schurftziekte van de knolselderijplant, Apium graveolens L. en over synergetische vormen en locale rassen van deze zwam
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door Joseph Antoine August Maria Hubert Goossens
Author(s) Goossens, J.A.A.M.H.
Publisher Wageningen : Veenman
Publication year 1928
Description 78 p
Notes Rugtitel : J.A.A.M.H. Goosens. Onderzoek over Phoma apiicola Klebahn  show all notes
Proefschrift Wageningen
Tutors Quanjer, Prof. Dr. H.M.
Graduation date 1928-12-17
Dissertation no. 46
Author abstract show abstract
Symptoms of Phoma apiicola on celeriac were described. Severe ones were like the Phoma rot described by Bennet (Mich. Agric. Exp. Stat. Tech. Bull. 53 (1921). Seed did not transmit P. apiicola but contained a second unidentified Phoma sp. with larger spores and not harmful to celeriac. Two isolates from different places near Venlo and Maastricht differed in ability of pycnospores to grow on Coons' liquid medium. On agar pycnospores yielded 2 forms differing in profusity of growth and in pycnospore size, forms macroforma and microforma. The new micro form was constant at room temperature but at 0' to 5'C yielded pycnospores of both forms.

In mixed culture it promoted pycnidial formation by the macro. The observations were explained not by heterothallism but by conjunct ('synergetic') growth of pycnidia. Inoculation experiments suggested that the micro form was identical with Phyllosticta apii. Only 2 of 20 varieties of celeriac showed any resistance to P. apiicola. On agar the macro form lost its virulence but occasional transfer to celeriac or culture with the micro form restored it.

Online full textINTERNET
On paper FORUM ; SPEC.COLL. ; A2096,1928,9
FORUM ; STACKS ; NN08202,46 ; Not for loan
Keyword(s) (cab) apium graveolens var. rapaceum / celeriac
Categories Root Vegetables
Publication type PhD thesis
Language Dutch; Flemish
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