See Allium sativum Gaumannomyces graminis

Previously called Ophiobolus graminis, this fungus causes 'Take-all' disease of wheat and other cereals. Gaussian curve

The bell-shaped curve of a normal distribution. Gene

The unit of inheritance which is carried on a chromosome. An inherited character may be controlled by a single gene (i.e., a Mendelian gene), or it may be controlled by many genes (polygenes). See also: Allele. Gene banks

The popular term for collections of plants made for purposes of genetic conservation. A gene bank may consist of collection of seeds, which have to be re-grown periodically, or of an arboretum of tree crops.

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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