The reaction of a group of Sorghums to the covered and loose kernel smuts

Melchers, L.E. (1940) The reaction of a group of Sorghums to the covered and loose kernel smuts. American Journal of Botany, 27 (9). pp. 789-791.

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A wide range of variation in their reactions to several physiologic races of the covered and loose kernel smuts of. sorghum (Sphacelotheca sorghi [R.A.M., xix, p. 210] and S. cruenta) was shown by a selected group of 36 varieties in four years' (1931, 1932, 1935, and 1936) tests at the Kansas Agricultural Experiment Station [ibid., v, p. 88], Spur feterita C.I. 623, however, being the only one to rank as immune. Certain varieties and selections, e.g., Hegari C.I. 620, Hegari K.B. 36204, White Yolo C.I. 699, and Red Amber x feterita K.B. 2570 and 2501, were found to be more or less susceptible to physiologic races 1 to 3 of S. sorghi and 2 of S. cruenta [ibid., xi, p. 448; xiii, 227], but not to race 1 of the latter, whereas others, such as Early White milo C.I. 480, are attacked by S. sorghi and race 1 but not 2 of S. cruenta. Again, Standard Yellow milo C.I. 234, Dwarf Yellow milo C.I. 332, and Standard White milo C.I. 352 are highly resistant to physiologic races 1 and 2 of S. cruenta but susceptible to race 2 of S. sorghi, the so-called 'milo race'. Races 2 and 3 of S. sorghi, when used together with 1 to produce a composite inoculum, were found to sustain 110 loss of virulence as a result of the admixture, infecting their differential varieties in the ordinary way

Item Type: Article
Author Affiliation: Department of Botany, Kansas Agricultural Experiment Station, Manhattan, Kansas
Subjects: Plant Protection > Pests
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 09 Mar 2012 07:47
Last Modified: 09 Mar 2012 07:47
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