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In classification, the category above class in the plant kingdom. It encompasses organisms of the same general form.
Potassium. Chemical symbol K in the NPK formulae, potassium is responsible for flower and fruit production in plants.
The processes of increasing the number of plants, including grafting, division, cuttings, seeding, budding and air layering.
A powdery coating that gives a plant a frosted appearance.
Refers to plants that are covered in fine, soft hairs or down. Also see Pubescent.
An insect that attacks plant roots. This pest can be controlled using pesticides.
The area of soil taken up by a plant's roots.
General term for a number of diseases, which cause the death or decay of plant tissue.
An offshoot of the parent plant that runs along the soil surface, which produces roots at the nodes.
A young plant cultivated from seed (not from a cutting).
