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HYBRID VIGOUR STUDIES IN TEN NEWLY DEVELOPED RESTORER LINES OF PEARL MILLET (PENNISETUM GLAUCUM (L.) R. BR)

Article Id: ARCC2193 | Page : 275-278
Citation :- HYBRID VIGOUR STUDIES IN TEN NEWLY DEVELOPED RESTORER LINES OF PEARL MILLET (PENNISETUM GLAUCUM (L.) R. BR).Agricultural Science Digest.2009.(29):275-278
C.J. Dangaria, J.M. Chotalia, J.J. Savaliya, B.K. Davda and A.G. Pansuriya
Address : Department of Agricultural Botany, College of Agriculture Junagadh Agricultural University, Junagadh-362 001, India.

Abstract

Ten newly developed inbred lines of pearl millet were studied in a set of 10 x 10 diallel cross
excluding reciprocals for hybrid vigour. The analysis of variance revealed significant differences
among the genotypes, parents and hybrids for all the characters expect for grain yield, number of
effective tillers and number of nodes for hybrids. Mean squares due to parents vs hybrids were
also observed significant for all the characters expect ear head girth, ear head weight and harvest
index. Thus, the study revealed presence of considerable genetic variability in the material studied.
High magnitude of parents vs hybrids mean square (except ear head weight and harvest index)
indicated presence of conspicuous mean heterosis. The magnitude of heterosis varied from cross
to cross for all the characters. Ear head weight and grain yield per plant exhibited the highest
heterotic values, whereas, least heterosis was observed for days to flowering. The crosses, SB-
220 x D-23, J-2467 x J-2474 and J-2367 x D-23 exhibited the highest heterotic effect and mean
performance for grain yield.

Keywords

Heterosis Pennisetum glaucum Diallel Grain yield.

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