The rice plants in the strain can be breed to other rice strains or cultivars , and if desirable plants are produced , these are further breed to stabilize the desirable traits ; the stabilized plants that can be propagated and come true , are given a cultivar name and released into production to be used by farmers . The rice plants in the strain can be bred to other rice strains or cultivars , and if desirable plants are produced , these are further bred to stabilize the desirable traits ; the stabilized plants that can be propagated and `` come true '' ( remain identical to the parent plant ) are given a cultivar name and released into production to be used by farmers .