Vol. 18 No. 2 (1970)

Papers

• Growth, flowering and fruiting in tomatoes in relation to temperature, cycocel and GA.

  A.A. Abdalla, K. Verkerk

  105-110

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• Temperature and nitrogen nutrition in relation to flowering and fruiting in tomatoes.

  A.A. Abdalla, K. Verkerk

  111-115

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• Socio-economic development in Guatemala through incentives to the subsistence sector.

  S.C. Manger Cats

  116-124

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• Relation between total radiation and yield of some field crops in the Netherlands.

  L. Sibma

  125-131

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• Studies on pod and bean values of Theobroma cacao L. in Nigeria. I. Environmental effects on West African amelonado with particular attention to annual rainfall distribution.

  H. Toxopeus, M. Wessel

  132-139

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• The effect of temperature of the root medium and of the growing point of the shoot on growth, water content and sugar content of maize leaves.

  A. Kleinendorst, R. Brouwer

  140-148

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