Indian Society of Genetics & Plant Breeding

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EVALUATION OF SOME SELECTION CRITERIA IN RAGI

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Four selection criteria for yield were evaluated in ragi (Eleusine coracana Gaertn). In an
initial trial, 42 lines were evaluated for yield and its components. Moderate to high
heritability and predicted advance for most characters indicAted ample scope for selection.
Fifteen lines were selected based on four criteria, i.e., selection index (SC-I), rank total of
different characters (SC-II), single-plant yield (SC-III), and plot yield (SC-IV). The selected
lines were evaluated in the test trial and the relative efficiency of the selection criteria
i!.ssessed by comparison of group mean yield and rank correlation. Both the methods
brought out the same order of superiority of the selection criteria, which was SC-I
>
SC-III > SC-II > SC-IV. But the differences in efficiency were marginal and none of the
criteria was wholly satisfactory. Selection index and direct selection on yield could be used
concurrently to achieve the desired result.
  

Keywords: Eleusine coracana, ragi, selection criteria, selection index.

Info

Year: 1991
Volume: 51
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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