STUDIES ON THE VARIABILITY AND GENETIC ESTIMATIONS OF SOME STRAINS OF RAPESEED (Brassica campestris L.) | ||||
| Journal of Plant Production | ||||
| Article 15, Volume 25, Issue 6, June 2000, Page 3295-3301 PDF (344.62 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2000.259121 | ||||
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| Author | ||||
| M. E. Abou-Ghazala, | ||||
| Oil Crops Res. Section, Field Crops Res. Inst. A.R.C. | ||||
| Abstract | ||||
| The present investigation was carried out in two locations (Sakha and Nubaria Research Stations, ARC) during the two growing seasons 1997/98 and 1998/99 to evaluate and study some genetic parameters of nine strains of rapeseed (Brassica campestris L.). The results indicated the presence of significant differences between these strains. The two strains Int. 330 and Int. 185 were found to be the highest yielding per plant. The results concluded that the genotype by year interactions were significant for all studied characters. The same trend was observed for genotype by location interactions except of yield per plant. Phenotypic and genotypic coefficient of variability (P.C.V. and G.C.V.), heritability (broad sense) and expected genetic advance for the studied characters indicated that a wide range of phenotypic variation was noticed in studied characters. High heritability estimates were observed for number of days to flowering and seed yield per plot. This finding indicating that a large part of the observed variability among strains for these characters were due to genetic differences. On the other hand the other characters indicated moderate and low estimates of heritability. The expected genetic advance under selection appeared to be effective and ranged from 10.19 to 32.77. | ||||
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