BRASSICA NAPUS L راهنماي شناسايي مراحل زندگي در كلزا

An identification guide for rapeseed (Brassica napus L.) developmental stages

Parallel to the increase in importance of oilseed rape, the need to rationalize a system for describing plant growth stages, has been enhanced. Most of the previous keys, have emphasized on a certain growth stage. Thus, it is not always easy to link different "growth stage keys". In this study 6 genotypes of rapeseed (Brassica napus L.) and 2 genotypes of rape (Brassica campestris L.) were sown in a field experiment and by using frequent sampling, the life cycle of rapeseed was divided to seven main stages including germination and emergence, leaf production, stem extension, flower bud development, flowering, pod development and seed development. Each main stage was divided into sub-stages and the main and sub-stages were described. The use of this key in agriculture with some examples are also given.