Indian Society of Genetics & Plant Breeding

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INHERITANCE OF RESISTANCE TO ALTERNARIA LEAF BLIGHT IN PIGEONPEA (CAJANUS CAJAN (L.) MILLSP.)

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The inheritance of resistance to leaf blight caused by Alternaria tenuissima was studied in
pigeonpea (Cajanus cajan). The Fl, F:z, BCl and BC2 generations involving seven resistant
and a susceptible parents were evaluated. The dominance of susceptibility in Fl generation
and segregation into 3S:1R ratio in F2 indicated that resistance is governed by single
recessive gene in each of the varieties used in this study. The monogenic nature of disease
resistance was confirmed by back-eross analysis
 

Keywords: Pigeonpea, Alternaria blight, inheritance, genetics.

Info

Year: 1993
Volume: 53
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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