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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.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - 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(8): 2230-2239
DOI: https://doi.org/10.20546/ijcmas.2020.908.256


Genetic Variability and Character Association Studies in Apple (Malus × domestica Borkh.)
Lokender Kumar1*, Rajesh Kumar Dogra2 and Ashu Chandel3
1Dept. of Fruit Science,
3Dept. of Basic Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, H.P. (173 230), India
*Corresponding author
Abstract:

Experiment was conducted to study the nature and magnitude of genetic variability in twelve genotypes of apple for various horticultural traits during 2018-19 in Kullu valley agroclimate of Himachal Pradesh, so as to identify promising traits on which selection can be made. Sufficient genetic variability was recorded among the genotypes under study. High heritability coupled with high genetic gain was found for the characters viz., trunk girth, tree spread, tree volume, titratable acidity, non-reducing sugars, sugar-acid ratio, fruit volume, fruit set and fruit drop. Yield per plant had shown positive and significant correlation with positive and significant association with trunk girth (0.50) followed by tree spread (0.39) and annual shoot growth (0.34) at genotypic level. Path coefficient had positive direct effect towards fruit yield per tree: tree height (1.94), leaf area (1.33), trunk girth (1.08), fruit breadth (0.57), tree spread (0.29) and fruit weight (0.19). Suggesting that these parameters should be considered as prime traits during selection of desirable genotypes. The genotypes Scarlet Spur, Red Delicious were found promising for fruit length, fruit breadth, fruit weight, fruit volume, titratable acidity and non-reducing sugars whereas, Red Delicious V-22 was found promising for yield per plant (kg).


Keywords: Apple, Variability, Heritability, Correlation coefficients, Path analysis, Yield
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How to cite this article:

Lokender Kumar, Rajesh Kumar Dogra and Ashu Chandel. 2020. Genetic Variability and Character Association Studies in Apple (Malus × domestica Borkh.).Int.J.Curr.Microbiol.App.Sci. 9(8): 2230-2239. doi: https://doi.org/10.20546/ijcmas.2020.908.256