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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(4): 2756-2764
DOI: https://doi.org/10.20546/ijcmas.2020.904.325


Estimation of Genetic Variability, Heritability and Genetic Advance in Cucumber (Cucumis sativus L.) for Yield and Its Components under Protected Structure
T. R. Sahoo1 and D. K. Singh2
1KVK, ICAR-National Rice Research Institute, Cuttack, Odisha-753006, India
2GB Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
*Corresponding author
Abstract:

The present investigation was under taken with the objectives to estimate genetic variability, heritability and genetic advance for yield and yield contributing components of cucumber. The experimental materials for this investigation were fourteen genotypes of cucumber consisting of parthenocarpic, gynoecious and monecious germplasms crossed in line × tester mating design produced thirty three hybrids (F1). Thirty three F1 crosses along with their parents were evaluated in two environments viz. Environment 1 (March-June), Environment 2 (August-December) inside polyhouse for evaluation of their quantitative characters. The genotypes exhibited significant differences for all the traits under study in both environments. The genotypic coefficients of variation and phenotypic coefficients of variation were moderate to high for most of the characters. A wide range of variability along with high estimates of PCV and GCV were observed for node number to first male flower, node number to first female flower, sex ratio: (M/F), days to first male flower, fruit yield/ plant (kg), and fruit yield (q/ha) in both the environments.indicating high variability available in the germplasm for these characters for further improvement. High heritability coupled with high genetic advance as percent of mean was observed for fruit length (cm), fruit weight (g), number of fruits/plant, plant height (m), yield per plant (kg), yield per hectare (q/ha), days to first male flower, node to first male flower, node to first female flower and sex ratio (M/F). These characters had additive gene effect and therefore, these are more reliable for effective selection. Yield of parthenocarpic and gynoecious cucumber lines could be improved upon by selecting superior characters for further improvement in cucumber breeding.


Keywords: Genetic variability, Heritability, Genetic advance, Additive gene
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How to cite this article:

Sahoo, T. R. and Singh, D. K. 2020. Estimation of Genetic Variability, Heritability and Genetic Advance in Cucumber (Cucumis sativus L.) for Yield and Its Components under Protected Structure.Int.J.Curr.Microbiol.App.Sci. 9(4): 2756-2764. doi: https://doi.org/10.20546/ijcmas.2020.904.325