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LEITHFIELD Store; 9

LEITHFIELD Store, 9
FromKowai Archives Society
Name/Title
LEITHFIELD Store
Object Type
Photograph
Object number
9

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Leithfield


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Leithfield is twenty-six miles from Christchurch on the North Road. In the old coaching days it had a bank and separate post office, saleyards, stores and hotels. The settlers began to make their homes in the district in the fifties. Owing to the opening of the railway line the traffic was diverted ...
[Leithfield] - Leithfield - The Cyclopedia of New Zealand [Canterbury Provincial District]
New Zealand Electronic Text Centre
Leithfield is twenty-six miles from Christchurch on the North Road. In the old coaching days it had a bank and separate post office, saleyards, stores and hotels. The settlers began to make their homes in the district in the fifties. Owing to the opening of the railway line the traffic was diverted ...
Leithfield - The Cyclopedia of New Zealand [Canterbury Provincial District]
New Zealand Electronic Text Centre
The objective of this research project was to provide a basis for enhancing the storage and field performance of a S. sclerotiorum-based mycoherbicide intended for control of Ranunculus acris in dairy pastures. The approach was to determine the key factors regulating the germination, infection, growth and in vitro survival of the pathogenic fungus. Histopathology, biochemical and molecular studies were used to determine the response of the pathogen-host interaction to varying treatments to define the optimal conditions for disease development. Moisture had a significant effect on pathogenicity of S. sclerotiorum in detached leaf and whole plant tissue. In the leaf experiments, the humid treatment produced 78, 93 and 95% more disease than 12 h humid/dry, 4 h humid/dry and continuous dry treatments, respectively. Histopathology assessments showed that under humid conditions, surface hyphae, infection cushions and infection hyphae were produced at 2, 6 and 12 h after inoculation (HAl), respectively. In contrast, under the dry treatment surface hyphae and infection cushion were first observed at 6 and 12 h, respectively, while no infection hyphae were observed at any assessment time. In whole plant experiments, significantly more disease was produced under the continuous humid treatment compared to dry, combination of 6 or 12 h humid/dry and 6 h humid/dry/humid treatments. Pathology, biochemical and molecular experiments were conducted to determine the effects of urea and/or calcium hydroxide (lime) on pathogenicity. Histopathology studies showed that similar levels of infection structures were produced under both the water and urea treatments. Under the calcium hydroxide treatment, there were fewer surface hyphae and infection cushions produced at each assessment time while there was a 12 h delay in the production of infection hyphae. Separate detached leaf experiments showed that similar levels of disease were produced under the nitrogenous fertilisers to that of the...
Determining the key pathogenicity factors in Sclerotinia sclerotiorum to improve its potential as a mycoherbicide
Lincoln University
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