National Academy of Agricultural Sciences (NAAS)
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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 |
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.
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