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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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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.2017.6(9): 1894-1903
DOI: https://doi.org/10.20546/ijcmas.2017.609.233


Studies on Genetic Variability, Heritability and Genetic Advance for Growth, Yield and Quality Parameters among Orange Flesh Sweet Potato [Ipomoea batatas (L.) Lam.] Genotypes
Meenakshi Badu1*, P. Ashok1, T.S.K.K. Kiran Patro1 and K. Sasikala2
1Department of Horticulture, 2Department of Agronomy,Dr. Y.S.R. Horticultural University, Andhra Pradesh-534 101, India
*Corresponding author
Abstract:

The present investigation was undertaken to estimate the genetic variability, heritability and genetic advance for quantitative and qualitative traits among 25 genotypes of orange flesh sweet potato [Ipomoea batatas (L.) Lam.] in a randomized block design with three replications during kharif 2015-16 at College of Horticulture, Venkataramannagudem, Dr. Y.S.R. Horticultural University. Analysis of variance revealed significant differences among the genotypes for all the traits under study indicating, the presence of sufficient variability in the studied material. High magnitude of PCV and GCV were observed for width of leaf lobe, leaf area, total leaf dry weight, chlorophyll a, chlorophyll b, total chlorophyll, length of vine, internodal length, number of branches per plant, fresh weight of whole plant, dry weight of whole plant, fresh weight of root, dry weight of root, leaf area index, specific leaf area, specific leaf weight, crop growth rate, net assimilation rate, reducing sugar, non-reducing sugar, total sugar, β-carotene, number of root tubers per plant, root tuber girth, root tuber yield per plant and root tuber yield per hectare suggesting the existence of wide range of genetic variability in the germplasm for these traits and thus the scope for improvement of these characters through simple selection would be better. High heritability (h2) estimates (>60%) coupled with high estimates from genetic gain as percent of mean (>20%) were observed for width of leaf lobe, petiole length, leaf area, total leaf dry weight, chlorophyll a, chlorophyll b, total chlorophyll, length of vine, internodal length, number of branches per plant, fresh weight of whole plant, dry weight of whole plant, fresh weight of root, dry weight of root, leaf area index, specific leaf area, specific leaf weight, crop growth rate, net assimilation rate, starch, reducing sugar, non-reducing sugar, total sugar, β-carotene, number of root tubers per plant, root tuber length, root tuber girth, root tuber yield per plant and root tuber yield per hectare indicated that the heritability is due to additive gene effects which may be improved through simple plant selection methods.


Keywords: Orange flesh sweet potato, PCV, GCV, Heritability, Genetic advance.
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How to cite this article:

Meenakshi Badu, P. Ashok, T.S.K.K. Kiran Patro and Sasikala, K. 2017. Studies on Genetic Variability, Heritability and Genetic Advance for Growth, Yield and Quality Parameters among Orange Flesh Sweet Potato [Ipomoea batatas (L.) Lam.] Genotypes.Int.J.Curr.Microbiol.App.Sci. 6(9): 1894-1903. doi: https://doi.org/10.20546/ijcmas.2017.609.233