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The effects of foliar diseases and irrigation on root development, yield and yield components of wheat (Triticum aestivum L.)
(Lincoln College, University of Canterbury, 1985)
Studies were conducted on three field trials of wheat cv. Kopara to investigate the lack of compensation by later determined components of yield because of early disease constraints. The investigation was based on the ...
Tortricid moth pest management in Canterbury apple orchards
(Lincoln College, University of Canterbury, 1984)
Orchard practices and pest abundance were monitored at five sites over three seasons. Canterbury apple orchardists could produce high quality fruit with less than 1% damage using as few as four insecticide sprays per season. ...
A study of insect pests of brussels sprouts in Canterbury; their phenology and the resultant crop losses
(Lincoln College, University of Canterbury, 1982)
The relationships between insect pests and damage in Brussels sprouts were studied for three seasons in Canterbury. Each season the major pest species, white butterfly (Artogeia rapae L.), diamondback moth (Plutella ...
The soil ecology of Serratia entomophila, A bacterial pathogen of the New Zealand grass grub, Costelytra zealandica (White)
(Lincoln College, University of Canterbury, 1989)
Serratia entomophila (Enterobacteriaceae) is a newly described species of bacterium, currently being developed as a biological control agent for the New Zealand grass grub Costelytra zealandica (White) (Coleoptera: ...
A study of the growth and development of yarrow (Achillea millefolium L.)
(Lincoln College, University of Canterbury, 1980)
The response of yarrow (Achillea millefolium L.) seedlings to reduced light, interference from barley (Hordeum vulgare) and some aspects of regeneration from rhizomes were the subject of investigations from 1976 until 1980. ...
Applied ecology of the Tasmanian lacewing Micromus tasmaniae Walker (Neuroptera : Hemerodiidae)
(Lincoln College, University of Canterbury, 1989)
The Tasmanian lacewing (Micromus tasmaniae Walker) is one of the most common
aphid predators occurring in lucerne crops in New Zealand. A comparison of sampling
techniques, and the output from a simulation model, suggest ...
Insects associated with the lupin (Lupinus angustifolius) cultivars Fest and Uniharvest
(Lincoln College, University of Canterbury, 1980)
The insect fauna of two Lupinus angustifolius
cultivars (Fest and Uniharvest) was surveyed between
October, 1978 and March, 1979. The main sampling
methods were sweepnetting, use of the D-Vac, and pod removal. Glasshouse ...
Translocatable resistance to mercuric and phenylmercuric ions in soil bacteria
(American Society for Microbiology, 1981-09)
Of a sample of 42 gram-negative Hg-resistant bacteria, three (a Pseudomonas fluorescens, a Klebsiella sp. and a Citrobacter sp.) contained translocatable elements conferring resistance to Hg²⁺ (all three) and to Hg²⁺ and ...
The effect of environmental factors and crop interference on the biology of yarrow (Achillea millefolium L.) seed and seedlings
(Lincoln College, University of Canterbury, 1983)
A population of 58 seedling yarrow (Achillea millefolium) plants m⁻² produced approximately 243,000 viable seeds per square metre in the first season of growth and development. Approximately 10% of the freshly harvested ...
The development of a sequential sampling plan for management of stripe rust (Puccina striiformis West.) in winter wheat (Triticum aestivum L.)
(Lincoln College, University of Canterbury, 1985)
Stripe rust caused by Puccinia striiformis West., was studied in three seasons between 1981 and 1984, on the susceptible wheat cv. Rongotea. A sample unit of the top three leaves on a W-shaped sample pattern provided the ...