Is it an overview of research works carried out in a plant either in an area (for example 'seed biology' carried out in a particular species or genus) or any studies regarding the species or genus?
I endorse the views expressed by Dr Singh.. In addition one must contribute some good papers in the concerned area of research and must have overall knowledge and quantun of work globally.
A review paper is an article that summarizes the current state of understanding on a topic. A review paper surveys and summarizes previously published studies, rather than reporting new facts or analysis. Review papers are sometimes also called overview articles.
I attach herewith PDF copy of Guidelines on how to prepare a review paper.