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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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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): 1900-1908
DOI: https://doi.org/10.20546/ijcmas.2017.612.216


Seasonal Variation of Bio-physical Parameters to Elevated Carbon Dioxide and Temperature Regimes in Maize Genotypes
K. Adishesha1*, B.S. Janagoudar2 and A. Amaregouda1
1Department of Crop Physiology, University of Agricultural Sciences,Raichur-584104, Karnataka, India
2Department of Crop Physiology, University of Agricultural Sciences,
Dharwad-580005, Karnataka, India
*Corresponding author
Abstract:

Increasing atmospheric CO2 concentration has led to concerns about global changes to the environment. One area of global change that has not been fully addressed is the effect of elevated atmospheric CO2 and temperature regimes on agriculture production inputs. Maize (Zea mays L.) is the most important grain crop is produced throughout the country under diverse environments. A study was conducted to evaluate the seasonal comparison (summer and Kharif 2015) of bio-physical parameters (photosynthetic rate, transpiration rate, stomatal conductance and NDVI) to elevated carbon dioxide and temperature regimes raised in open top chamber with different concentrations of CO2 levels (normal CO2, 550ppm,) with different temperatures regimes (+2°C). Among the genotypes NK 6240, HTMR-1 and 900 M-GOLD genotype recorded maximum transpiration rate and stomatal conductance whereas, the genotypes HTMR-2 and ARJUN had least transpiration rate and stomatal conductance. The results showed that maize genotypes grown in kharif season performed better compared to summer season with respect to bio-physical parameters.


Keywords: Elevated CO2 and Temperature, Bio-physical parameters, Maize genotypes etc.
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How to cite this article:

Adishesha K., B.S. Janagoudar and Amaregouda, A. 2017. Seasonal Variation of Bio-physical Parameters to Elevated Carbon Dioxide and Temperature Regimes in Maize Genotypes.Int.J.Curr.Microbiol.App.Sci. 6(12): 1900-1908. doi: https://doi.org/10.20546/ijcmas.2017.612.216