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Inheritance of the Blasting Reaction of Sorghum to Physiologic Race 1 of Sphacelothea Sorgbi 1
Author(s) -
Casady A. J.
Publication year - 1963
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1963.0011183x000300060024x
Subject(s) - inheritance (genetic algorithm) , race (biology) , citation , sorghum , crop , division (mathematics) , library science , biology , genealogy , history , agronomy , mathematics , computer science , botany , arithmetic , genetics , gene
A. J. Casady COVERED kernel smut is a disease of sorghum (Sorghum vulgare Pers.) caused by the fungus Sphacelotheca sorghi (Link) Clinton. Replacement of the kernels by sori, with little other conspicuous morphylogical alteration of the panicle, is considered the normal reaction of susceptible varieties to race 1 of 5. sorghi. Certain varieties, however, do not react normally. Instead, the panicle is partially to completely blasted, with small, poorly developed sori sometimes present in the partially blasted panicles (Figure 1). An understanding of the inheritance of the blasting reaction should enhance the breeding of sorghum resistant to race 1 of S. sorghi. Also, knowledge of the genetic relationship of the genes controlling the blasting reaction and the genes controlling other characteristics of sorghum should prove helpful. The genetic nature of the parental material used made it possible to determine the relationship of the genes for blasting and the presence of a testa in the kernel.