Download or read book Descriptors for Brassica and Raphanus written by International Board for Plant Genetic Resources and published by Bioversity International. This book was released on 1990 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brassica and Raphanis spp. are highly polymorphic, exhibiting a wide range of intraspecific variation and utilization. Similar morphotypes exist amang several species. The descriptors and descritor states used in this document have been selected from extensive lists of descriptors prepared by crop experts in various countries