01507nam a2200253 a 450000100080000000500110000800800410001910000200006024501250008026000550020530000090026049000300026952008060029965000120110565000120111765000200112965000100114965300120115965300120117165300160118365300090119965300250120870000200123314825692023-03-01       1928    bl uuuu     u0uu1 u    #d1 aJOHNSTON, C. O.  aThe control of sorghum kernel smut and the effect of seed treatments on vitality of sorghum seed.h[electronic resource]  aManhattan: Kansas State Agricultural Collegec1928  a37p.  a(Technical bulletin, 23).  aThe dry formaldehyde method of treating sorghum seed for smut does not give as satisfatory smut control as the standard formaldehyde treatment Furthermore, injury to seed often is greater in the former than in the latter method. the injury to the seed by the dry formaldehyde method was found to be proportional to the dosage of formaldehyde used and not to the time the seed was covered after treatment. In formaldehyde soaking treatments satisfatory smut control was obtained when the strength of the solution was increased and the length of treatments decreased. Seed injury, however, was somewhat increased. Soaking the seed in a 1-240 solution for 30 minutes gave practically as good smut control as soaking for one hour. Storage of seed treated with strong formaldehyde seems to be unsafe. (...)  aDoença  aSemente  aSorghum Bicolor  aSorgo  aControl  aDisease  aKernel smut  aSeed  aSphacelotheca sorghi1 aMELCHERS, L. E.