Show Improving Sugar Su ar Beets Strains of s gar gu gar beets pOJ considerable to the curly curly- top curly top to disease I vc ye been developed b by bythe bythe the United St tes es Department of Agri Agriculture Agriculture Agriculture culture in ex covering sev sev- several several several eral years ears T ie most resistant strain however is u fortunately very i t at- at fro i the su- su gar gar content In order to overcome this disadvantage hybridization of this strain with th the se less resistant but otherwise more desirable has been started by the department retarded gy The disease Ihas the has as greatly retarded of the he industry indus indus- development 04 o sugar-beet sugar try y in s some s sections tion O of the Wes Western ern growing No practicable method for th leafhopper which spreads the di diase ase has been discovered discovered discovered ered In the Investigations by the department a comparison om paris on showed a 70 per cent gr ater yield for beets of ofa ofa a resistant st stain in than that for or com com- commercial com commercial r mercial beets No seed of resistant v tion bu varieties is y a available for dist bu tion f |