P. Johnstone

发表

Effect of strains of Rhizobium trifolii on the establishment of oversown white clover (Trifolium repens)

W. Lowther, P. Johnstone, 1978 .

A putative effect of ambient temperature during the rut on time of calving in young red deer hinds

M. Fisher, P. Johnstone, 2002 .

Effect of soil physical condition , and phosphorus and nitrogen availability on pasture persistence

A. Mackay, P. Budding, C. Smith, 2011 .

INTERACTIONS BETWEEN ENDOMYCORRHIZAS AND SOIL NITROGEN AND PHOSPHORUS ON THE GROWTH OF RYEGRASS

I. Hall, R. Dolby, P. Johnstone, 1984 .

Impact of fire on tussock grassland invertebrate populations.

C. Ferguson, B. Barratt, D. Barton, 2009 .

Effect of Fire on Microarthropods in New Zealand Indigenous Grassland

C. Ferguson, B. Barratt, P. Johnstone, 2006 .

Relationship between pasture dry matter yield and soil Olsen P from a series of long‐term field trials

A. G. Sinclair, J. Morton, A. Roberts, 1997 .

Effect of reactive phosphate rock on the pH of soil under pasture

A. G. Sinclair, J. Morton, A. Roberts, 1993 .

Field Parasitism of Nontarget Weevil Species (Coleoptera: Curculionidae) by the Introduced Biological Control Agent Microctonus aethiopoides Loan (Hymenoptera: Braconidae) over an Altitude Gradient

C. Ferguson, B. Barratt, K. Crook, 2007, Environmental entomology.

Differential expression of CART in ewes with differing ovulation rates.

J. Juengel, G. Smith, L. Quirke, 2017, Reproduction.

Analysis of Variance

B. Manly, P. Johnstone, Bryan F. J. Manly, 2006 .

Essential oils from New Zealand manuka: triketone and other chemotypes of Leptospermum scoparium.

M. H. Douglas, B. Smallfield, Rosemary E. Anderson, 2004, Phytochemistry.

Seasonal changes in ovulation rate in coopworth ewes maintained at different liveweights

I. C. Scott, G. Montgomery, P. Johnstone, 1988 .

Developing a method for laboratory biosafety testing impacts of transgenic plants on non‐target insects

L. Malone, C. Ferguson, B. Barratt, 2008 .

Random generation and selection of one- and two-dimensional designs for experiments on blocks of natural size

P. Johnstone, 2003 .

Replication requirements in field experiments for comparing phosphatic fertilizers

A. G. Sinclair, P. Johnstone, 1991, Fertilizer research.

Ability of a dynamic model of phosphorus to account for observed patterns of response in a series of phosphate fertilizer trials on pasture

A. G. Sinclair, P. Johnstone, 1995, Fertilizer research.

Comparison of six phosphate rocks and single superphosphate as phosphate fertilisers for clover‐based pasture

A. G. Sinclair, J. Morton, J. H. Watkinson, 1998 .

Effects of triple superphosphate and Sechura phosphate rock on clover and nitrogen content of pasture

A. G. Sinclair, J. Morton, A. Roberts, 1994 .

Changes in soil Olsen P over six years with annual applications of triple superphosphate or reactive phosphate rock (Sechura)

A. G. Sinclair, J. Morton, A. Roberts, 1994 .

Agronomy, modelling and economics of reactive phosphate rocks as slow-release phosphate fertilizers for grasslands

A. G. Sinclair, L. Nguyen, M. O'connor, 2004, Fertilizer research.

Effects of frequency of application of triple superphosphate and Sechura phosphate rock on pasture DM production, herbage P concentration, and Olsen P soil tests

A. G. Sinclair, J. Morton, A. Roberts, 1995 .

Effect of vesicular-arbuscular mycorrhizas on response of ‘Grasslands Huia’ and ‘Tamar’ white clovers to phosphorus

I. Hall, R. Scott, P. Johnstone, 1977 .

Single-Nucleotide Polymorphisms in the LEPR Gene Are Associated with Divergent Phenotypes for Age at Onset of Puberty in Davisdale Ewes1

R. Brauning, J. Juengel, M. French, 2014, Biology of reproduction.

Running title: Association of SNPs in LEPR with puberty onset Summary sentence: Single nucleotide polymorphisms resulting in alterations to the amino acid structure of the LEPR were strongly associated with delayed puberty in ewe lambs.

R. Brauning, J. Juengel, M. French, 2014 .

Influence of site of ovulation on the reproductive performance of ewes with 1 or 2 ovulations

R. Kelly, P. Johnstone, 1983 .

Reproductive performance of commercial sheep flocks in South Island districts

R. Kelly, P. Johnstone, 1982 .

Survival and growth of introduced grasses in Canterbury hill pastures

J. E. Radcliffe, P. Johnstone, S. R. Young, 1977 .

Effects of animals on pasture production

C. C. Boswell, P. Johnstone, M. A. Monteath, 1977 .

Identification of a Line of Sheep Carrying a Putative Autosomal Gene Increasing Ovulation Rate in Sheep That Does Not Appear to Interact with Mutations in the Transforming Growth Factor Beta Superfamily1

K. Dodds, J. Juengel, L. Proctor, 2011, Biology of reproduction.

Effects of immunizing ewes against bone morphogenetic protein 15 on their responses to exogenous gonadotrophins to induce multiple ovulations.

J. Juengel, K. McNatty, L. Quirke, 2011, Reproduction.

Centre for Reproduction and Genomics, AgResearch Limited, Invermay Animal Research

J. Juengel, K. McNatty, L. Quirke, 2011 .

Factors affecting differences between birth weight of littermates (BWTD) and the effects of BWTD on lamb performance.

K. Dodds, J. Juengel, G. H. Davis, 2018, Animal reproduction science.

Effects of immunization against androstenedione or bone morphogenetic protein 15 (BMP15) on reproductive performance in sheep.

J. Juengel, K. McNatty, N. Hudson, 2013, Journal of animal science.

Mutations in the leptin receptor gene associated with delayed onset of puberty are also associated with decreased ovulation and lambing rates in prolific Davisdale sheep.

R. Brauning, K. Dodds, J. Juengel, 2016, Reproduction, fertility, and development.

An independent statistical analysis of ovulation rate data used to segregate Booroola-Merino genotypes

G. H. Davis, J. L. Owens, P. Johnstone, 1985 .

Effects of prolonged exposure of ewes to oestrogenic pasture 1. Permanent flock infertility following long-term grazing of red clover (‘Grasslands Pawera’)-dominant pasture

R. Kelly, P. Johnstone, G. Shackell, 1993 .

Influence of maternal liveweight on reproductive performance and wool production of heterozygous Booroola Merino × Coopworth (FecB Fec+) and Merino × Coopworth ewes

R. Littlejohn, P. Fennessy, K. Isaacs, 1991 .

Reduced ovulation rate, failure to be mated and fertilization failure/embryo loss are the underlying causes of poor reproductive performance in juvenile ewes.

D. Stevens, J. Juengel, L. Quirke, 2016, Animal reproduction science.

Identifying infertile homozygous Inverdale (FecXI) ewe lambs on the basis of genotype differences in reproductive hormone concentrations.

G. H. Davis, T. Manley, P. Johnstone, 1997, Animal reproduction science.

Factors affecting parasitism by Microctonus aethiopoides (Hymenoptera: Braconidae) and parasitoid development in natural and novel host species.

B. Barratt, P. Johnstone, 2001, Bulletin of entomological research.

Effect of growing media on the production of ginseng (Panax ginseng) in Central Otago, New Zealand

M. H. Douglas, B. Smallfield, A. Heaney, 2000 .

Coating materials for commercial inoculated and coated clover seed

W. Lowther, P. Johnstone, 1979 .

EFFECT OF DRILL TYPE ON ESTABLISHMENT OF OVERDRILLED LUCERNE

M. Douglas, P. Johnstone, N. J. George, 1998 .

Attainment of puberty by ewes in the first year of life is associated with improved reproductive performance at 2 years of age

J. Juengel, S. Edwards, G. H. Davis, 2015 .

Production during 5 years from Merino ewes reared on different levels of nutrition between 7 and 19 months of age

J. R. Stevenson, G. H. Davis, P. Johnstone, 1983 .

Evaluation of the effects of grass species, irrigation, nitrogen fertiliser application and soil compaction on the response of modern dairy pastures to phosphorus fertiliset.

A. Mackay, P. Budding, C. Smith, 2010 .

Patterns of, and a model for, dry matter yield response in grass/clover pastures to annual applications of triple superphosphate fertiliser

A. G. Sinclair, J. Morton, A. Roberts, 1994 .

Variations between years in the ram effect when Coopworth or Poll Dorset rams are introduced to seasonally anovular Coopworth ewes

I. C. Scott, P. Johnstone, 1994 .

Biodiversity of Coleoptera and other invertebrates in urban gardens: a case study in a New Zealand city

S. Porter, C. Freeman, Y. Heezik, 2015 .

Comparison of pasture establishment from a conventional disc drill and a prototype strip seeder drill

R. F. Horrell, P. D. Johnstone, W. L. Lowther, 1991 .

Evaluation of a non-destructive acetylene reduction assay of nitrogen fixation for pasture legumes grown in pots

A. G. Sinclair, P. Johnstone, A. Hardacre, 1978 .

Should sequential designs be used for comparative experiments on animals

P. Johnstone, 1998 .

Effects of insects, seeding rate, and insecticide seed dressing on white clover and Maku lotus in tussock grassland

B. Barratt, P. Johnstone, 1984 .

Normalization of microarray data using a spatial mixed model analysis which includes splines

Peter Johnstone, Theresa Wilson, David Baird, 2004, Bioinform..

The effect of fire on terrestrial amphipods (Crustacea: Amphipoda) in a natural grassland community

Jeannette M. Wing, K. Dickinson, B. Barratt, 2019, Pedobiologia.

Activin A and follistatin during the oestrous cycle and early pregnancy in ewes.

T. Spencer, F. Bazer, J. Juengel, 2016, The Journal of endocrinology.