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Agricultural Science Digest, volume 29 issue 2 (june 2009) :

HETEROSIS STUDIES IN B X R CROSSES FOR SELECTION OF SUPERIOR FEMALES FOR A-LINE DEVELOPMENT IN PEARL MILLET

V.D. Vaghasiya, C.J. Dangaria*, K.K. Dhedhi
1College of Agriculture, Junagadh Agricultural University, Junagadh-362 001, Gujarat, India

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Cite article:- Vaghasiya V.D., Dangaria* C.J., Dhedhi K.K. (2024). HETEROSIS STUDIES IN B X R CROSSES FOR SELECTION OF SUPERIOR FEMALES FOR A-LINE DEVELOPMENT IN PEARL MILLET. Agricultural Science Digest. 29(2): . doi: .

ABSTRACT

Twelve newly developed maintainer lines were crossed with seven broad based restorer lines
in a line x tester fashion to study the extent of heterosis on grain yield and 12 its component
traits for final selection of new ‘B’ lines before embarking for their conversion into male sterile
version ‘A’ lines in pearl millet. Appreciable amount of heterosis, though varied with crosses was
observed for the various characters. The maximum positive heterosis for grain yield was 180.24
per cent (B2 x R3) and 136.15 per cent (B11 x R6) over mid and better parent, respectively. The
crosses viz., B12 x R2, B2 x R3 and B12 x R1 showed good per se performance as well as heterosis
coupled with high SCA; there was also exhibited high heterosis for various important yield
components. Based on GCA effects of the new ‘B’ lines and the performance of their hybrids,
four B-lines viz., B2, B10, B11 and B12 were identified as females’ potentiality suitable for conversion
into male sterile versions to enhance the yield levels of pearl millet hybrids.

KEYWORDS

REFERENCES

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