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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(12): 2380-2389
DOI: https://doi.org/10.20546/ijcmas.2017.612.275


Assessment of Genetic Variability of a Set of Maize Inbred Lines for Drought Tolerance under Temperate Conditions
Asima Gazal1*, F.A. Nehvi2, Ajaz Ahmad Lone3 and Zahoor Ahmed Dar3
1Division of Genetics and Plant Breeding, SKUAST-K, J&K, India
2Saffron Research Station, Pampore, SKUAST-K, J&K, India
3Dryland Agricultural Research Station, SKUAST-K, Budgam, J&K, India
*Corresponding author
Abstract:

Lack of hybrids/composites showing tolerant genes for moisture stress is responsible for low maize productivity in Kashmir. Present study was an attempt in this direction to assess the genetic variability of 100 homozygous maize inbred lines at different stages of selfing during kharif 2013 and 2014 at AICRP (Maize)-Srinagar Centre. Inbred lines were evaluated for obtaining information on genetic variability, heritability and genetic advance for maturity, morphological, physiological, yield and quality traits. A wide range of variability revealing significant response of main effects (lines, irrigations and years and their respective digenic and trigenic interactions) was observed. Upper range values suggest presence of elite lines exhibiting taller plants associated with more number of ears plant-1, more ear height, more number of kernels row-1, heavier grains, high yielders, better quality, high leaf relative water content, more chlorophyll content, earliness towards tasseling, silking, anthesis-silking interval, maturity and low canopy temperatures associated with low stomatal count. Medium to high values of genetic coefficient of variability accompanied with high heritability and high genetic gain (as % of mean) were exhibited for anthesis-silking interval, leaf relative water content, stomatal count, chlorophyll content before flowering, chlorophyll content before maturity, ears plant-1, grain yield plot-1, protein content all confirming that these traits can be given more weightage while applying selection for improvement of these traits and in identifying elite drought tolerant lines.


Keywords: Drought, Maize, Relative water content, Anthesis-silking interval, Chlorophyll content.
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How to cite this article:

Asima Gazal, F.A. Nehvi, Ajaz Ahmad Lone and Zahoor Ahmed Dar. 2017. Assessment of Genetic Variability of a Set of Maize Inbred Lines for Drought Tolerance under Temperate Conditions.Int.J.Curr.Microbiol.App.Sci. 6(12): 2380-2389. doi: https://doi.org/10.20546/ijcmas.2017.612.275