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Effects of Planting Time and Harvest Age on Cassava (Manihot esculenta) in Northern Australia. I. Crop Growth and Yield in Moist Environments

Published online by Cambridge University Press:  03 October 2008

G. L. Hammer ,
F. R. Hobman  and
R. K. Shepherd
G. L. Hammer
Affiliation:
Queensland Department of Primary Industries, GPO Box 46, Brisbane, Queensland, 4001
F. R. Hobman
Affiliation:
Queensland Department of Primary Industries QDPI, PO Box 1054, Mareeba, Queensland, 4880
R. K. Shepherd
Affiliation:
Queensland Department of Primary Industries QDPI, PO Box 1085, Townsville, Queensland, 4810, Australia
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Summary

A range of planting times, with sequential harvests to age 24 months, was used to determine crop growth and yield of cassava at two locations, one having a humid tropical climate and the other humid sub-tropical. Yield was doubled during the second year at the sub-tropical site. At the tropical site yield was very high after one year, but root rots occurred in the second year. The dry matter percentage of storage roots fluctuated seasonally and was highest during the cooler months when canopy vigour was lowest. Known or inferred environmental controls of the yield-determining factors of growth rate, growth duration, and partitioning to harvestable organs were used to interpret the results and thus derive guidelines for timing of planting and harvesting in moist environments.

Type
Research Article
Information
Experimental Agriculture , Volume 23 , Issue 4 , October 1987 , pp. 401 - 414
Copyright
Copyright © Cambridge University Press 1987

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