Indian Society of Genetics & Plant Breeding

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HETEROSIS STUDIES FOR YIELD AND ITS COMPONENTS IN BREADWHEAT (TRITICUM AESTIVUM 1.)

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A set of diallel crosses involving 10 parents was made to have information on the
extent of heterosis over better parent (BP) and standard variety (SV) for yield and
yield contributing characters including some of the physiological traits. The maximum
better parent heterosis for grain yield per plant was observed to be 59.7 per cent.
The extent of standard heterosis however, was not of appreciable magnitude being
27.3 per cent for grain yield per plant. Magnitude of heterosis over better parent
indicated that grain yield per plant was the most heterotic character next only to
biological yield per plant. The crosses showing heterosis for grain yield were not
heterotic for all the characters.
 

Keywords: Breadwheat, heterosis, yield components, economic crosses.

Info

Year: 1998
Volume: 58
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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