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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
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(12): 1304-1314
DOI: https://doi.org/10.20546/ijcmas.2018.712.160


Morphological Traits Associated with Heat Tolerance in Potato
M. Paratpara Rao1*, B. Selvi2, V.K. Gupta3, R.V.S.K. Reddy1, John Joel2 and B. Jayakumar2
1Dr. Y S R Horticultural University, Venkataramannagudem, West Godavari district, Andhra Pradesh, India
2Tamil Nadu Agricultural University, Coimbatore, India
3Central Potato Research Institute Campus, Modipuram, Meerut, India
*Corresponding author
Abstract:

Heat tolerant and susceptible genotypes of potato were grown in a non potato growing tropical region i.e. West Godavari district of Andhra Pradesh during rabi 2016-17 in order to find out the morphological traits that contribute to heat tolerance. Data on different yield and yield attributing characters were analysed (correlation and path analysis) to find out the direct and indirect contribution of important traits towards adaptation of potato to high temperatures. Yield plant-1 was found to have significant positive correlation at both genotypic and phenotypic levels with plant height (0.3115** and 0.2495*), number of nodes plant -1 (0.2789* & 0.2543*), number of stolans plant-1 (0.5822** and 0.3360**), number of tubers plant-1 (0.4385** & 0.3751**) and average tuber wt. (0.6988** and 0.7021**). However it was negatively correlated with and leaflet size (-0.5180** and -0.4869**) at genotypic as well as phenotypic level. These studies help in breeding of heat tolerant potato varieties by exercising selection for such traits.


Keywords: Correlation, Path analysis, Heat tolerance, Tuberization, Character association
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How to cite this article:

Paratpara Rao, M., B. Selvi, V.K. Gupta, R.V.S.K. Reddy, John Joel and Jayakumar, B. 2018. Morphological Traits Associated with Heat Tolerance in Potato.Int.J.Curr.Microbiol.App.Sci. 7(12): 1304-1314. doi: https://doi.org/10.20546/ijcmas.2018.712.160