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Pasture regeneration and gorse seedling control in the Port Hills following fire
(Lincoln University, 2017-11-14)
This dissertation examined the regeneration of pasture after a fire and the control of gorse seedlings using Italian ryegrass competition and herbicides. The experiments were run at a property on the Port Hills, Canterbury ...
The effect of pre-mowing pasture on milk, pasture, and nitrogen partitioning of dairy cows in the autumn
(Lincoln University, 2014)
The effect of pre mowing on pastures of high or low mass was investigated to determine whether herbage quality, intake, milk yield and nitrogen use efficiency (NUE) of dairy cows could be increased. The experiment was ...
Influence of soil pH, phosphorus and sulphur on the frequency of rhizobia genotypes found in four pasture legume species grown in an acid high country soil
(Lincoln University, 2014)
South Island hill and high country soils typically have deficiencies of nitrogen, phosphorus, sulphur and molybdenum. The soils often have low pH and as such, high levels of exchangeable aluminium and manganese, causing ...
The effect of Neotyphodium grass endophyte on alkaloid profiles, dry matter production and botanical composition of perennial ryegrass pastures
(Lincoln University, 2014)
This study involved three key experiments to examined the effect of Nil endophtye and novel endophyte strains (AR1, AR37, Wild-Type (WT) and NEA2) of perennial ryegrass on dry-matter (DM) production, botanical compositon, ...
Agronomic potential of Lupinus polyphyllus L. for dryland Merino properties in the Mackenzie Basin : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
(Lincoln University, 2019)
This research examined the potential of Lupinus polyphyllus L. (also known in New Zealand as perennial lupin and Russell lupin) as a productive pasture component for high-country pastures. To do this, a combination of ...
Enhancing seed quality in the female spinach (Spinacia oleracea L.) parent line : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
(Lincoln University, 2019)
Hybrid spinach (Spinacia oleraceae L.) seeds are produced in New Zealand for export. However, some seed lots fail to meet contracted germination standards. Several factors that may be responsible for seed germination and ...
A tale of two grass species: Temperature affects the symbiosis of a mutualistic Epichloë endophyte in both tall fescue and perennial ryegrass
(Frontiers Media SA, 2020-05-08)
Many cool-season grasses form permanent, mutualistic symbioses with asexual Epichloë endophytes. These fungal symbionts often perform a protective role within the association as many strains produce secondary metabolites ...
Preferences of the wheat bug (Nysius huttoni) for particular growth stages of the potential trap crop, alyssum (Lobularia maritima)
(New Zealand Plant Protection Society, 2019-07-28)
The New Zealand endemic wheat bug, Nysius huttoni (Hemiptera: Lygaeidae), is a pest of brassica seedlings. However, it has a wide host range comprising almost all cultivated brassicas, cereals and many other cultivated ...
Survey of insect pests of stored grain in New Zealand
(New Zealand Plant Protection Society (Inc.), 2016)
Producers and processors of cereal grains in New Zealand were invited in August 2015 to submit grain samples to allow extraction and identification of any insect pest species present. Sixty grain samples were received, of ...
Evaluation of spray drift in potatoes using various spray delivery systems
(New Zealand Plant Protection Society, 2014)
Spray deposition has previously been studied within a potato canopy. In a follow-up study, spray drift was evaluated using three treatments from the previous research plus two treatments encompassing an additional grower ...