Vol. 14 No. 2 (1966)

Papers

• Influence of daylength on vernalization of winter rye. 2. Continued experiments with short-day vernalization in winter rye.

  T.A. Hartman

  89-102

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• Ditch-blasting as a method of opening-up tropical swamp forest in Surinam.

  F.C. Bubberman, A.T. Vink

  103-126

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• The routine determination of manganese with form-aldoxime.

  J.C. van Schouwenburg

  127-130

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• The determination of micro quantities of manganese in plant material.

  J.C. van Schouwenburg, I. Walinga

  131-137

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• Boron deficiency in cacao, bananas and other crops on volcanic soils of Ecuador.

  D. Tollenaar

  138-151

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