Indian Society of Genetics & Plant Breeding

Inheritance of seedling and adult plant resistance to Alternaria leaf spot in safflower (Carthamus tinctorius L.)

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The present study on safflower (Carthamus tinetorius L.)
was undertaken to workout inheritance pattern of seedling
as well adult plant resistance to alternaria leaf spot caused
by Alternaria earthami. Two genetically male sterile lines,
GMS-104 and GMS·105, susceptible to leaf spot, were
crossed with a resistant accession GMU-1825. Evaluation
of the parents and the F1, F2, BC1 and BC2 derived from
the two crosses under polyhouse condition, showed that
the seedling resistance was monogenic recessive. The
adult plant resistance under field condition, was under
the control of two duplicate loci where atleast one locus
at homozygous recessive condition confers the adult plant

Keywords: Safflower, alternaria, resistance, inheritance


Year: 2002
Volume: 62
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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