Question

Covered smut of Sorghum is caused by
A. Sphacelotheca cruenta
B. Sphacebthera sorghi
C. Sphacelotheca radians
D. Tolyposporium ehrenbergii

Answer 1

These are the types of growth in the Ustilaginaceae family. It is a plant-microbe, causing covered filth of sorghum spp. Covered piece filth is the most well-known infection of sorghum in Illinois and different states where ranchers plant the untreated seed.

Complete answer:
Covered part filth, brought about by the parasite Sporisorium sorghi (equivalent Sphacelotheca sorghi) assaults all gatherings of sorghums, including johnsongrass. For example, Sorghum bicolor (S. vulgare) (sorghum), S. sudanense (Sudan grass), S. halepense (Johnson grass) and Sorghum vulgare var. technichum (broomcorn).

Additional Information: Grain filth/Kernel muck/Covered filth/Short muck - Sphacelotheca sorghi
Indications: The individual grains are supplanted by filth sori. The sori are oval or cylindrical and are covered with an intense rich skin (peridium) which frequently perseveres solid up to whipping. Ratoon crops show a higher occurrence of illness.
Free muck/piece filth - Sphacelotheca cruenta
Indications; The influenced plants can be identified before the ears come out. They are more limited than the sound plants with more slender stalks and stamped tillering. The ears come out significantly sooner than the solid. The glumes are hypertrophied and the ear head gives a freer appearance than solid. The sorus is covered by a slime layer that cracks early, uncovering the spores even as the head rises up out of the sheath. Grain muck/Kernel filth/Covered muck/Short filth - Sphacelotheca sorghi.The individual grains are supplanted by filth sori. The sori are oval or cylindrical and are covered with extremely smooth skin (peridium) which frequently continues solid up to whipping.
So the correct answer is Sphacebthera sorghi.

Note: Ratoon crops show a higher occurrence of infection.
Free muck/piece filth - Sphacelotheca cruenta
Indications: The influenced plants can be recognized before the ears come out. They are more limited than the sound plants with more slender stalks and stamped tillering. The ears come out a whole lot sooner than the solid. The glumes are hypertrophied and the ear head gives a free appearance than solid. The sorus is covered by a dainty film that bursts early, uncovering the spores even as the heat rises up out of the sheath.