An Order of the Phycomycetes which includes the downy mildews, including potato blight. Persea americana

The avocado pear. A highly nutritious salad fruit containing up to 30% oil that has a composition similar to olive oil. The avocado originated in Central America (Mexico-Guatemala) but is now grown in most tropical and subtropical countries. The seed is highly heterozygous and selected clones must be propagated vegetatively as grafts on seedling stocks. A good project for breeding clubs which should aim at selection within local populations. Persistent organic pollutants (POPs)

Hazardous synthetic chemicals that cause birth defects and fatalities among both humans and wild species . Many POPs are crop protection chemicals. See also: Dirty dozen.

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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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