GENETIC DIVERGENCE AND ITS RELATIONSHIP WITH HETEROSIS IN POTATO*


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Authors

  • S. K. Luthra
  • J. Gopal
  • P. C. Sharma

Abstract

The present study was conducted to assess the genetic divergence (Mahalanobis D2) in 29 potato genotypes(parental lines) based on 20 characters and to find out relationship between genetic diversity and heterosis for tuber yield. Results showed that the parental lines though morphologically diverse had narrow genetic base and could be grouped into four clusters. Observed morphological diversity was not related to geographical as well as taxonomic diversity. Genetic divergence(D values) had a positive relationship with heterosis for tuber yield in the 120 progenies derived from 24 x 5 (line x tester)matings of the parents. Selection of parents based on genetic divergence followed by progeny test is suggested for effective exploitation of heterosis in potato breeding programmes

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Author Biographies

  • S. K. Luthra
    Central Potato Research Institute Campus, Modipuram, Meerut 250110, Uttar Pradesh, India
  • J. Gopal
    Central Potato Research Institute, Shimla 171 001, Himachal Pradesh, India
  • P. C. Sharma
    Guru Gobind Singh Indraprastha University, New Delhi 110 006, India

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Issue

Vol. 32 No. 1 - 2 (2005)

Section

Articles

License

The copyright of the articles published in Potato Journal is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

Luthra, S. K., Gopal, J., & Sharma, P. C. (2013). GENETIC DIVERGENCE AND ITS RELATIONSHIP WITH HETEROSIS IN POTATO*. Potato Journal, 32(1 - 2). https://epubs.icar.org.in/index.php/PotatoJ/article/view/33338