J. Douglas

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Carbohydrate and Ginsenoside Changes in Ginseng Roots Grown in the Bay of Plenty, New Zealand

J. M. Follett, E. Walton, H. Boldingh, 2004 .

THE EFFECT OF GRASS GRUB ON THE HERB- AGE PRODUCTION OF DIFFERENT PASTURE SPECIES IN THE PUMICE COUNTRY

R. East, W. M. Kain, J. Douglas, 1978 .

Long-term restricted index selection in mice designed to change fat content without changing body size

J. Douglas, E. J. Eisen, L. Benyon, 1995, Theoretical and Applied Genetics.

The production and utilization of lucerne in New Zealand

J. Douglas, 1986 .

Analysis of taxol, 10-deacetylbaccatin III and related compounds in Taxus baccata

J. Douglas, D. Lauren, D. Jensen, 1995 .

Efficient method for determining the glycyrrhizin content of fresh and dried roots, and root extracts, of Glycyrrhiza species.

J. M. Follett, J. Douglas, D. Lauren, 2001, Phytochemical analysis : PCA.

Aspects of agronomy of rakkyo (Allium chinense G. Don) in New Zealand

J. Douglas, C. Triggs, M. Shaw, 2015 .

Control of weeds in five herb crops

A. Rahman, J. Douglas, T. James, 1991 .

A new glucosyl feruloyl quinic acid as a potential marker for roots and rhizomes of goldenseal, Hydrastis canadensis.

J. M. Follett, Catherine E McNamara, J. Douglas, 2004, Journal of natural products.

Factors influencing silymarin content and composition in variegated thistle (Silybum marianum)

R. Martin, J. Douglas, D. Lauren, 2006 .

Sesquiterpene lactones in Arnica montana: a rapid analytical method and the effects of flower maturity and simulated mechanical harvesting on quality and yield.

B. Smallfield, Rosemary E. Anderson, J. Douglas, 2004, Planta medica.

Traditional Japanese Vegetables: An Outline of Their Research and Development in New Zealand©

J. M. Follett, J. Douglas, 2008 .

Geological Sections through the Andes of Peru and Bolivia: III—From the Port of Callao to the River Perene

J. Douglas, 1921, Quarterly Journal of the Geological Society of London.

The Geology of the Marcapata Valley in Eastern Peru

J. Douglas, 1933, Quarterly Journal of the Geological Society of London.

Agronomic requirements of ulluco (Ullucus tuberosus) - a South American tuber

C. Triggs, R. Martin, S. Halloy, 2002 .

The Carboniferous Limestone of County Clare (Ireland)

J. Douglas, 1909, Quarterly Journal of the Geological Society of London.

Oxalate content of cormels of Japanese taro (Colocasia esculenta (L.) Schott) and the effect of cooking

G. Savage, J. Scheffer, J. Douglas, 2007 .

Initial research on the production of American ginseng in the Waikato

J. M. Follett, J. Douglas, 1997 .

A Marine Triassic Fauna from Eastern Persia

J. Douglas, 1929, Quarterly Journal of the Geological Society of London.

Factors limiting the improvement of tussock grasslands from 850 to 1300 m altitude in the semi-arid zone of North Otago, New Zealand

J. Douglas, J. W. Kinder, 1975 .

Boron requirement of asparagus seedlings grown in sand culture

J. M. Follett, R. Littler, J. Douglas, 1989 .

Soil fertility studies in North Otago 1. The effects of phosphorus, sulphur, and molybdenum on clover growth on a range of soils

J. Douglas, W. Risk, 1981 .

I. Comparison of ‘Grasslands Huia’ and ‘Grasslands Pitau’ white clovers

J. Douglas, G. J. Goold, 1976 .

Production and composition of various lucerne and grass mixtures in a semi-arid environment

J. Douglas, J. W. Kinder, 1973 .

AUTUMN OVERDRILLED TAMA RYEGRASS AND CEREALS TO SUPPLEMENT LUCERNE IN THE CENTRAL NORTH ISLAND

J. Douglas, J. Baars, 1975 .

Response pattern of successive wheat crops to superphosphate and nitrogen on a soil high in allophane clay in Hawke's Bay, New Zealand

J. Douglas, M. O'connor, C. Dyson, 1983 .

Effect of superphosphate with and without nitrogen on grain yield, grain size, nitrogen, phosphorus, and sulphur concentrations, and baking quality of ‘Karamu’ wheat

R. Littler, J. Douglas, M. Slay, 1988 .

Preliminary investigation of concentrations of minerals and nitrogen in wheat grain, and their relationship with baking quality and grain weight

J. Douglas, C. Dyson, 1985 .

Grain-yield evaluation of ‘Kopara 73’ and ‘Takahe’ wheat cultivars

G. Sheath, J. Douglas, R. C. Stephen, 1975 .

Growth rates and relationships between weather and growth rates for lucerne (Medicago sativa L.) in Canterbury and the Rotorua-Taupo region

J. Douglas, T. Knight, J. Baars, 1990 .

Lucerne (Medicago sativa L) establishment on uncultivated pumice hill country

J. Douglas, J. Baars, P. Allan, 1982 .

Effect of time and extent of defoliation on grain yield of maize in relation to Cosmopolitan Armyworm(Mythimna separata (Walker)) damage

W. M. Kain, J. Douglas, C. Dyson, 1981 .

Geological Sections through the Andes of Peru and Bolivia: II—From the Port of Mollendo to the Inambari River

J. Douglas, 1920, Quarterly Journal of the Geological Society of London.

Geological Sections through the Andes of Peru and Bolivia: I—From the Coast at Arica in the North of Chile to La Paz and the Bolivian ‘Yungas’

J. Douglas, 1914, Quarterly Journal of the Geological Society of London.

The Stratigraphical Distribution of the Cornbrash: I. The South-Western Area

W. J. Arkell, J. Douglas, 1928, Quarterly Journal of the Geological Society of London.

The Stratigraphical Distribution of the Cornbrash : II. The North-Eastern Area

W. J. Arkell, J. Douglas, 1932, Quarterly Journal of the Geological Society of London.

Uptake and Redistribution of 15N Within an Established Asparagus Crop after Application of 15N-labelled Nitrogen Fertilizer

J. M. Follett, S. Ledgard, M. Sprosen, 1994 .

THE FERTILISER REQUIREMENT OF ASPARAGUS ON AN ALLOPHANIC CLAY BASED VOLCANIC ASH SOIL

J. M. Follett, J. Douglas, 1996 .

Influence of time of application on the utilization of nitrogen fertilizer by asparagus, estimated using 15N

J. M. Follett, S. Ledgard, M. Sprosen, 1992, Plant and Soil.

Effect of plant density and depth of harvest on the production and quality of licorice (Glycyrrhiza glabra) root harvested over 3 years

J. M. Follett, R. Martin, J. Douglas, 2004 .

Effect of three plant densities on the corm yield of konjac (Amorphophallus konjac) grown for 1 or 2 years

J. M. Follett, J. Douglas, J. Waller, 2006 .

Control of insect pests of establishing brassicas

J. Douglas, R. A. French, 1967 .

RESEARCH ON KONJAC (AMORPHOPHALLUS KONJAC) PRODUCTION IN NEW ZEALAND

J. M. Follett, J. Douglas, J. Waller, 2005 .

VI.—A Note on some new Chalk Crinoids

J. Douglas, 1908, Geological Magazine.

Seasonal variation of biomass and bioactive alkaloid content of goldenseal, Hydrastis canadensis.

J. M. Follett, R. Littler, J. Douglas, 2010, Fitoterapia.