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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
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.2020.9(2): 328-338
DOI: https://doi.org/10.20546/ijcmas.2020.902.042


Genetic Variability Analysis of QPM (Zea mays L.) Inbreds using Morphological Characters
Digvijay Singh*, Ajay Kumar, Rajesh Kumar, Nitesh Kushwaha, Tushar Arun Mohanty and Pooja Kumari
Department of Plant Breeding and Genetics, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur (Bihar), India
*Corresponding author
Abstract:

With the aim to assess the extent of genetic variability, heritability, genetic advance for yield and kernel quality traits in twenty five diverse QPM inbred lines. The crop was raised at Instructional Farm, Tirhut College of Agriculture, DRPCAU, Pusa, Samastipur (Bihar) during kharif 2018.The trail was set up in randomized block design with three replications having plot size of 1.5 x 4.0 = 6 m2. Analysis of variance revealed significant differences for 11 characters studied among the genotypes. The characters studied were days to 75 % tasseling, days to 75% silking, days to 75% brown husk, Plant height (cm), Ear height (cm), Ear length (cm), Ear girth (cm), Tassel length (cm), Number of kernel rows per ear, Number of kernels per row and Grain yield (Kg/ha). Genetic variability parameter showed that phenotypic coefficient of variation (PCV) was higher than the respective genotypic coefficient of variation (GCV). High magnitude of GCV and PCV was observed for Grain yield (kg/ha) indicating the importance of these traits in evolution and selection of inbred lines for yield improvement under maize breeding programme. Data recorded for heritability showed that high heritability accompanied with high genetic advance as percent of mean was recorded for ear length (cm), plant height, ear height and grain yield (kg/ha) indicating effectiveness of selection due to preponderance of additive gene action and breeder may consider these traits as main selection criteria.


Keywords: QPM, genetic variability, heritability and genetic advance percentage of mean.
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How to cite this article:

Digvijay Singh, Ajay Kumar, Rajesh Kumar, Nitesh Kushwaha, Tushar Arun Mohanty and Pooja Kumari. 2020. Genetic Variability Analysis of QPM ( Zea mays L.) Inbreds using Morphological Characters.Int.J.Curr.Microbiol.App.Sci. 9(2): 328-338. doi: https://doi.org/10.20546/ijcmas.2020.902.042