This is reference book, which gives idea of the genetic variability exist in the species Abelmoschus esculentus for yellow vein mosaic virus (YVMV). It will help in breeding improvement of okra in terms to yield as well as disease resistant. In this the recent approach has been applied to identified the resistant line. All the recent review has been incorporated in relation to methodology, statistical analysis and experimental findings. This book is valuable for whom working on resistant breeding of okra for YVMV.