This comprehensive book provides a thorough scientific foundation on the growth and care of plants common to all horticultural commodities.  Continuing in the tradition of the first edition, it incorporates the principles behind the techniques described in other ``how-to' horticulture texts. By providing readers with a thorough grounding in the science of horticulture, it successfully prepares them for more specialized studies in nursery management, floriculture, landscaping, vegetable and fruit science.