Indexing

Evaluation of Tropical Early Cauliflower (Brassica oleracea var. botrytis) Genotypes under Norther Dry Zone of Karnataka

Author: Pallavi T.M., Vilas D. Gasti, Vijaykumar Rathod, Praveenkumar S.G., Sumangal Koulagi and Vijaymahantesh

PDF Download PDF

Abstract

Genetic variability was studied for nineteen quantitative characters in forty genotypes of tropical early cauliflower. Analysis of variance revealed significant differences among the genotypes for all the characters except for days to curd initiation, days to curd maturity and curd depth. The genotypes viz., Sanjeev Selection, DC-903, DC-105 and DC-94-2 were found promising as they had more than one desirable quantitative and qualitative traits. Sanjeev Selection had maximum curd yield per hectare (19.37 t/ha) while DC-94-2 exhibited earliest harvestable curd maturity (71.00 days). Good level of phenotypic and genotypic coefficients of variation (PCV and GCV), broad sense heritability and genetic advance as per cent of mean were observed for characters like net curd weight, marketable curd weight, curd yield per hectare. However, lowest coefficient of variation, heritability and genetic advance were observed for days to curd initiation, leaf width and ascorbic acid content of the curd

Keywords

Cauliflower, genetic variability, co-efficient of variation, heritability and genetic advance

Conclusion

High heritability alone is not enough to make efficient selection in segregating generation unless the information is accompanied for substantial amount of genetic advance. Burton (1952) and Panse (1957) viewed that if a character is governed by non -additive gene action, heritability and genetic advance both would be high. Thus, high estimates of heritability along with high genetic advance provide good scope for further improvement in advance generations of tropical early cauliflower if these characters are subjected to mass, progeny for family selection

References

-

How to cite this article

Pallavi T.M., Vilas D. Gasti, Vijaykumar Rathod, Praveenkumar S.G., Sumangal Koulagi and Vijaymahantesh (2024). Evaluation of Tropical Early Cauliflower (Brassica oleracea var. botrytis) Genotypes under Norther Dry Zone of Karnataka. Biological Forum – An International Journal, 16(7): 160-163.