Qualitative variation

Genetic variation in which a character shows differences in kind. The character is either present or absent, with no intermediates. This variation is typical of Mendelian genetics. The term 'discontinuous variation' is synonymous. See also: Quantitative variation, Continuous variation. Quality of crop product

This is one of the four main objectives in plant breeding, the others being yield, agronomic suitability, and resistance to parasites. Quantitative variation

Genetic variation in which a character shows differences in degree. The character can be present at any level between a minimum and a maximum. This variation is typical of biometrical genetics. The term 'continuous variation' is synonymous. See also: Qualitative variation.

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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