2026 A. J. Parsons: Plant Science and Agronomy Researcher – H-Index, Publications & Awards

Research.com Recognitions

2025 - Research.com Plant Science and Agronomy in New Zealand Leader Award

Best Publications

Diet preference of sheep: effects of recent diet, physiological state and species abundance

A. J. Parsons;J. A. Newman;P. D. Penning;A. Harvey

424
Citations
The physiology of grass production under grazing. II. Photosynthesis, crop growth and animal intake of continuously-grazed swards.

Parsons Aj;Leafe El;Collett B;Penning Pd

346
Citations
Intake and behaviour responses by sheep to changes in sward characteristics under continuous stocking

P. D. Penning;A. J. Parsons;R. J. Orr;T. T. Treacher

316
Citations
High nitrogen supply and carbohydrate content reduce fungal endophyte and alkaloid concentration in Lolium perenne

Susanne Rasmussen;Anthony J. Parsons;Shalome Bassett;Michael J. Christensen

288
Citations
ANALYSIS OF THE COEXISTENCE MECHANISMS FOR GRASSES AND LEGUMES IN GRAZING SYSTEMS

S. Schwinning;A. J. Parsons

271
Citations
DairyMod and EcoMod: biophysical pasture-simulation models for Australia and New Zealand

I. R. Johnson;D. F. Chapman;V. O. Snow;R. J. Eckard

256
Citations
The effect of the duration of regrowth on photosynthesis, leaf death and the average rate of growth in a rotationally grazed sward

A. J. Parsons;P. D. Penning

247
Citations
The Physiology of Grass Production Under Grazing. I. Characteristics of Leaf and Canopy Photosynthesis of Continuously-Grazed Swards

A. J. Parsons;E. L. Leafe;B. Collett;W. Stiles

238
Citations
Metabolic Profiles of Lolium perenne Are Differentially Affected by Nitrogen Supply, Carbohydrate Content, and Fungal Endophyte Infection

Susanne Rasmussen;Anthony J. Parsons;Karl Fraser;Hong Xue

230
Citations
Use of a model to optimize the interaction between frequency and severity of intermittent defoliation and to provide a fundamental comparison of the continuous and intermittent defoliation of grass

A. J. Parsons;I. R. Johnson;A. Harvey

218
Citations
Fasting affects intake behaviour and diet preference of grazing sheep

J.A. Newman;P.D. Penning;A.J. Parsons;A. Harvey

195
Citations
The effects of season and management on the growth of grass swards

A. J. Parsons

195
Citations
Optimal diet selection by a generalist grazing herbivore

J. A. Newman;A. J. Parsons;J. H. M. Thornley;P. D. Penning

188
Citations
A mechanistic model of some physical determinants of intake rate and diet selection in a two-species temperate grassland sward.

A. J. Parsons;J. H. M. Thornley;J. Newman;P. D. Penning

187
Citations
Past lessons and future prospects: plant breeding for yield and persistence in cool-temperate pastures

A. J. Parsons;G. R. Edwards;P. C. D. Newton;D. F. Chapman

186
Citations
Impacts of spatial patterns in pasture on animal grazing behavior, intake, and performance

D. F. Chapman;A. J. Parsons;G. P. Cosgrove;D. J. Barker

180
Citations
The effects of group size on grazing time in sheep

P.D. Penning;A.J. Parsons;J.A. Newman;R.J. Orr

176
Citations
Not all sheep prefer clover : diet selection revisited

J. A. Newman;A. J. Parsons;A. Harvey

163
Citations
Intake and behaviour responses by sheep to changes in sward characteristics under rotational grazing

P. D. Penning;A. J. Parsons;R. J. Orr;G. E. Hooper

162
Citations
Effects of elevated CO2, nitrogen and fungal endophyte-infection on tall fescue: growth, photosynthesis, chemical composition and digestibility

J. A. Newman;M. L. Abner;R. G. Dado;D. J. Gibson

157
Citations
How predictable are aphid population responses to elevated CO2

J. A. Newman;D. J. Gibson;D. J. Gibson;A. J. Parsons;J. H. M. Thornley

156
Citations
The use of spatial memory by grazing animals to locate food patches in spatially heterogeneous environments: an example with sheep

G.R. Edwards;J.A. Newman;A.J. Parsons;J.R. Krebs

150
Citations
Use of cues by grazing animals to locate food patches: an example with sheep

G.R. Edwards;J.A. Newman;A.J. Parsons;J.R. Krebs

107
Citations
Relationship between vegetation state and bite dimensions of sheep grazing contrasting plant species and its implications for intake rate and diet selection

G. R. Edwards;A. J. Parsons;P. D. Penning;J. A. Newman

98
Citations
High sugar ryegrasses for livestock systems in New Zealand

Grant Edwards;A. Parsons;S. Rasmussen;Racheal H. Bryant

96
Citations
Plant−animal interactions in a continuously grazed mixture. I, Differences in the physiology of leaf expansion and the fate of leaves of grass and clover

A. J. Parsons;Anne Harvey;Jane Woledge

93
Citations
PLANT-ANIMAL INTERACTIONS IN A CONTINUOUSLY GRAZED MIXTURE. II. THE ROLE OF DIFFERENCES IN THE PHYSIOLOGY OF PLANT GROWTH AND OF SELECTIVE GRAZING ON THE PERFORMANCE AND STABILITY OF SPECIES IN A MIXTURE

A. J. Parsons;Anne Harvey;I. R. Johnson

83
Citations
Diet preferences of adult sheep and goats grazing ryegrass and white clover

P.D. Penning;J.A. Newman;A.J. Parsons;A. Harvey

80
Citations
Some 'high sugar grasses' don't like it hot

A.J. Parsons;S. Rasmussen;H. Xue;J.A. Newman

75
Citations
Bite dimensions and grazing movements by sheep and cattle grazing homogeneous perennial ryegrass swards

A.J Rook;A Harvey;A.J Parsons;R.J Orr

70
Citations
Metabolomics of forage plants: a review

Susanne Rasmussen;Anthony J. Parsons;Christopher S. Jones

62
Citations
Selective grazing modifies previously anticipated responses of plant community composition to elevated CO(2) in a temperate grassland.

Paul C. D. Newton;Mark Lieffering;Anthony J. Parsons;Shona C. Brock

62
Citations
The spatial pattern of vegetation in cut and grazed grass/white clover pastures.

G. R. Edwards;A. J. Parsons;J. A. Newman;I. A. Wright

58
Citations
Dietary preference of sheep for perennial ryegrass and white clover at contrasting sward surface heights

A. Harvey;A. J. Parsons;A. J. Rook;P. D. Penning

57
Citations
Grass-endophyte interactions: a note on the role of monosaccharide transport in the Neotyphodium lolii-Lolium perenne symbiosis.

Susanne Rasmussen;Qianhe Liu;Anthony J. Parsons;Hong Xue

55
Citations
Metabolite analysis of the effects of elevated CO2 and nitrogen fertilization on the association between tall fescue (Schedonorus arundinaceus) and its fungal symbiont Neotyphodium coenophialum.

Geraldine D. Ryan;Susanne Rasmussen;Hong Xue;Anthony J. Parsons

48
Citations
Effect of long-term changes in relative resource availability on dietary preference of grazing sheep for perennial ryegrass and white clover

A. J. Rook;A. Harvey;A. J. Parsons;P. D. Penning

33
Citations
Opportunities for enhancing the delivery of novel forage attributes

G. P. Cosgrove;A. J. Parsons;D. M. Marotti;S. M. Rutter

30
Citations
Soil carbon dynamics: the effects of nitrogen input, intake demand and off-take by animals.

Anthony J. Parsons;John H.M. Thornley;Philip C.D. Newton;Susanne K. Rasmussen

28
Citations
The effects of carbohydrate supply and host genetic background on Epichloë endophyte and alkaloid concentrations in perennial ryegrass

G.D. Ryan;S. Rasmussen;A.J. Parsons;J.A. Newman

24
Citations
REVIEW: PART OF A HIGHLIGHT ON BREEDING STRATEGIES FOR FORAGE AND GRASS IMPROVEMENT Metabolomics of forage plants: a review

Susanne Rasmussen;Anthony J. Parsons;Christopher S. Jones

0
Citations