Dasheen

See: Colocasia esculenta. Date palm

See: Phoenix dactylifera. Daucus carota

The carrot. This is an open-pollinated member of the family Umbelliferae and the production of uniform lines is difficult. Some work has been done on hybrid varieties but there are technical problems with this approach. There is plenty of scope for the accumulation of horizontal resistance, but amateur breeders should be a little wary of tackling this crop. Day-length

A parameter that governs the initiation of flowering and other developments in plants. Tropical plants are often short-day plants (e.g., potatoes that will not form tubers until the September equinox when grown in temperate regions) and temperate plants are often long-day plants (e.g., hops and olives which will not flower in the tropics).

Growing Soilless

Growing Soilless

This is an easy-to-follow, step-by-step guide to growing organic, healthy vegetable, herbs and house plants without soil. Clearly illustrated with black and white line drawings, the book covers every aspect of home hydroponic gardening.

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