Section 14
Chapter 13,516

Studies on important defects of quality in Celeriac, together with a consideration of the change induced by manuring in groups of desirable substances

Schuphan, W.

Bodenk. u. PflErnahr 2(5-6): 255-304


Accession: 013515200

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In the course of this exhaustive investigation of certain defects involving a serious depreciation in the market value of German celeriac, the writer discusses a discoloration of the sliced rootstocks known as 'iron- or rust-spot', which was formerly attributed to iron oxidation but has now been traced, by intensive anatomical and rnicrochemical analyses on the Delikatess variety, to the accumulation in special 'excretion vessels' of resinous substances and ethereal oils.

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