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Inheritance of field resistance to sorghum charcoal rot and selection for multiple disease resistance

OAR@ICRISAT

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Relation http://oar.icrisat.org/6262/
http://indianjournals.com/ijor.aspx?target=ijor:ijgpb&volume=42&issue=3&article=012
 
Title Inheritance of field resistance to sorghum charcoal rot and selection for multiple disease resistance
 
Creator Rana, B S
Anahosur, K H
Rao, V J M
Parameshwarappa, R
Rao, N G P
 
Subject Sorghum
 
Description Six segregating and nonsegregating generations of three R x S and two S x S crosses were studied for charcoal rot resistance under epiphytotic conditions. CSV-5 (148/168) was comparatively the most resistant parent. The F1 showed partial dominance of resistance.
The resistance appears to be a polygenic threshold character governed by duplicate epistasis with low heritability (38%). The F3 progenies transgress the parental limits. In absence of absolute resistance for charcoal rot, selection 2 S.D. below population mean (S.I. = 1%) results in selecting resistant transgressive segregates.
Charcoal rot, SDM and leaf rust inherit independently. It is possible to combine these characters through simultaneous selection by choosing rust resistant plants from the segregating F3 progenies possessing
 
Publisher Indian Society of Genetics and Plant Breeding
 
Date 1982
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/6262/1/IJGPB_42_3_302_310_1982.pdf
Rana, B S and Anahosur, K H and Rao, V J M and Parameshwarappa, R and Rao, N G P (1982) Inheritance of field resistance to sorghum charcoal rot and selection for multiple disease resistance. Indian Journal of Genetics and Plant Breeding, 42 (3). pp. 302-310. ISSN 0019-5200