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Showing 21 results

A study of gene dispersal via pollen in Nicotiana tabacum using introduced genetic markers.

Published online: 02 May 1996

Authors: Paul, E. M. & Capiau, K. & Jacobs, M. & Dunwell, J. M.

Content type: Journal article

Journal title: Journal of Applied Ecology

Agrobacterium tumefaciens was used to introduce two marker genes (kanamycin resistance and β-glucuronidase) into tobacco. These plants were grown in a...

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Modelling reinfection of replanted cocoa by swollen shoot virus in pandemically diseased areas.

Published online: 09 Mar 1995

Authors: Jeger, M. J. & Thresh, J. M.

Content type: Journal article

Journal title: Journal of Applied Ecology

Reinfection of healthy replanted cocoa by cacao swollen shoot badnavirus, was modelled. Much of the spread of disease in pandemically diseased areas s...

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Variation in yield among competing individuals within mixed genotype stands of tea: a selection problem.

Published online: 01 Jan 1978

Authors: Cannell, M. G. R. & Njuguna, C. K. & Ford, E. D. & Smith, R. & Ross-Parker, H. M.

Content type: Journal article

Journal title: Journal of Applied Ecology

The procedure adopted in an attempt to identify bushes which would produce high-yielding clones is described. In a six-month study in Kericho, Kenya, ...

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Shade in north-east Indian tea plantations. II. Foliar illumination and canopy characteristics.

Published online: 01 Jan 1974

Authors: Hadfield, W.

Content type: Journal article

Journal title: Journal of Applied Ecology

The penetration of light into 5 distinct foliage patterns of tea bushes was studied. The 2 foliage types (semi-erect and horizontal) representing most...

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Effects of shade cover and availability of midge breeding sites on pollinating midge populations and fruit set in two cocoa farms.

Published online: 01 Jan 1982

Authors: Young, A. M.

Content type: Journal article

Journal title: Journal of Applied Ecology

The abundance of several species of Forcipomyia, known to be pollinators of cacao, increased markedly in 1 cacao farm in Costa Rica when discs of rott...

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Stomatal behaviour of tea (Camellia sinensis) in relation to environment.

Published online: 01 Jan 1978

Authors: Squire, G. R.

Content type: Journal article

Journal title: Journal of Applied Ecology

Except in the 2- to 3-month annual dry season, stomatal conductance was principally determined by incident irradiance; it was independent of shoot wat...

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Seasonal changes in photosynthesis of tea (Camellia sinensis L.).

Published online: 01 Jan 1977

Authors: Squire, G. R.

Content type: Journal article

Journal title: Journal of Applied Ecology

Seasonal changes in the photosynthesis of tea were measured with a 14C technique during two years in Malawi. Photosynthesis did not decrease at the be...

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Changes in populations of Toxoptera aurantii (Boy.) (Homoptera: Aphididae) on cocoa in Ghana.

Published online: 01 Jan 1977

Authors: Firempong, S.

Content type: Journal article

Journal title: Journal of Applied Ecology

The seasonal changes in populations of Toxoptera aurantii (Boy.) on the flush leaves (new leaves on the shoots) and chupons (vegetative shoots arising...

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Population dynamics of Characoma stictigrapta Hmps. (Lepidoptera: Noctuidae), on cocoa in Ghana.

Published online: 01 Jan 1976

Authors: Akotoye, N. A. K. & Kumar, R.

Content type: Journal article

Journal title: Journal of Applied Ecology

Studies were carried out in Ghana on the population dynamics of larvae of Characoma stictigrapta Hmps., a pest of the pods and leaves of cacao. Larvae...

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Shade in north-east Indian tea plantations. I. The shade pattern.

Published online: 01 Jan 1974

Authors: Hadfield, W.

Content type: Journal article

Journal title: Journal of Applied Ecology

The influence of interplanted shade trees on the light regime at the surface of mature tea bushes is described. Most of the light reaching a tea bush ...

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