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Studies on the physiology of germination of Cirsium arvense Scop and the response of the plant to regulators
(Canterbury Agricultural College, University of New Zealand, 1957)
The importance of the seed as a potential source of spread of Californian thistle (Cirsium arvense Scop) has been emphasised. By means of a series of experiments involving periodic variations in temperature and light, it ...
A study of Oxalis and its control
(Canterbury Agricultural College, University of New Zealand, 1959)
The general botany of the genus Oxalis has been reviewed and the species present in New Zealand have been described and illustrated. Observations over the growing period 1958 – 1959 and some controlled experiments enabled ...