The difficulties of cultivation, such as climatic conditions, stimulate breeders to develop new, more resistant to different weather conditions, as well as to disease varieties.
Dhibaatooyinka beerashada, sida xaaladaha cimilada, waxay kiciyaan jilayaasha si ay u horumaraan cusub, oo u adkaysta xaaladaha cimilada kala duwan, iyo sidoo kale noocyo cudur.