Relationship between the attitudinal limit of cassava and soil temperature in Papua New Guinea

R. Michael Bourke, J.P. Evenson, B.A. Keating


Observations on the upper attitudinal limit of cassava at various locations in Papua New Guinea (PNG) gave a mean of 1800 m. The mean of a set of soil temperature measurements at one location at this altitude was 17.9C. Experimental work in Queensland has indicated that a mean soil temperature of 18C is the lowest temperature for satisfactory cassava establishment. It is suggested that the upper attitudinal limit of cassava in PNG is related to soil temperature.


Cassava; Soils; Temperature

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