Indian Society of Genetics & Plant Breeding

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COMPARISON OF THREE BREEDING METHODS FOR TRANSGRESSIVE SEGREGATION FOR YIELD AND ITS COMPONENTS IN GRASSPEA (LATHYRUS SATIVUS L.)

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The F2 populations of 2 crosses of grasspea viz. 'RED' x 'P 28' and 'RED' x 'Ee
242692' were advanced by foIlowing single seed descent, random bulk and pedigree
methods up to Fs generation during the period from 1992-93 to 1994-95 at Indian
Agricultural Research Institute, New Delhi and IAR! offseason nursery, Dharwad,
Kamataka. The Fs populations of these crosses were evaluated for comparing the
relative efficiency of these 3 breeding methods in obtaining transgressiv segregants
for yield and its components. The single seed descent method proved to be superior
to random bulk and pedigree methods in producing greater frequency of transgressive
segregants in Fs generation for yield and its components, whereas the random bulk
method showed a poor performance in this regard.
 

Keywords: Grasspea, Lathyrus sativus L., transgressive segregation, yield components, single seed descent, random bulk, pedigree method

Info

Year: 1998
Volume: 58
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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