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Research Matters - Supplementary lighting and rooting

30 Mar 2012 | by Dr Ken Cockshull

The impact of light quantity on rooting has not often been investigated with vegetatively propagated, herbaceous annual bedding plants. In the research reported here, uniform shoot-tip cuttings were harvested from vegetative stock plants of various species including Argyranthemum frutescens, Diascia...

Research Matters - Geranium growth without nitrogen

02 Mar 2012 | by Dr Ken Cockshull

Nitrogen is the most important mineral nutrient for plants and growers usually ensure that it is supplied at an appropriate rate.

Breeding scent into carnations

02 Sep 2011

Most modern carnations have little fragrance whereas many wild dianthus species have a strong fragrance. Obviously, one desirable project would be to breed this fragrance into modern carnations.

Research Matters - Improving organic manure

26 Aug 2011

Excessive use of synthetic fertilisers has led to the leaching of nutrients into local watercourses with consequent damage to native ecosystems. Greater efficiency in the use of fertilisers is required both in conventional and organic systems of cropping.

Research Matters - Supplying nutrients to Petunia cuttings

28 Apr 2011

It is important to know when to begin applying fertilisers, especially when propagating plants from stem cuttings. In the experiments reported below, unrooted cuttings of Petunia (approx equal to) hybrida 'Supertunia Royal Velvet' were inserted individually into cells in plastic trays.

Science Into Practice - Alternative herbicides for narcissus

28 Apr 2011

The narcissus crop is grown for three or more years. Weeds reduce yield and quality of flowers (and bulbs), interfere with picking and bulb lifting, may delay maturity and have the potential to introduce pests and disease into the crop (some weeds are hosts of the stem nematode). Achieving a high level...

Research Matters - Controlling plant height

15 Apr 2011 | by Dr Ken Cockshull

Nowadays, there is considerable interest in controlling plant height without chemicals. The experiments described below investigated the effects and interactions of forcing air over plants and of water stress.

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