Phenotypic stability of advanced hybrids for yield in early and main potato (Solanum tuberosum) crop


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Authors

  • S V SINGH
  • P C GAUR
  • S K PANDEY

Keywords:

potato, phenotypic stability.

Abstract

A study was conducted at modipuram during 1994-96 to assess 24 genotypes for yield at 60, 70, 80 and 90 days of
harvest of potato (Solanum tuberosum L.). The pooled analysis showed significant variance due to genotype x environment
interaction. The predictable component of G X E variance was not significant but the variance due to deviation
from regression was significant. The data for early harvest (60 and 70 days: Group I) and medium duration harvest (80
and 90 days: Group II) were also analysed separately for identifying stable early bulking and medium bulking genotypes.
In Group I 'JX 235' gave higher yield than the best control variety 'Kufri Jawahar' and low value of deviation
from regression (S2 di 0.54) indicating good stability and predictability of performance. In Group II, 'JX 235' (45.55
tannes/ha) and 'JX 118' (43.99 tannes/ha) gave significantly higher yield than the varieties 'Kufri Badshah' (39.91
tonnes/ha) and 'Kufri Jawahar' (40.11 tonnes/ha). Both genotypes showed non-significant deviation from regression
indicating their stability of performance over environments

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Author Biographies

  • S V SINGH
    Senior Scientist,Central Potato Research Station, Modipuram, Uttar Pradesh 250 110
  • P C GAUR
    Principal Scientist, Central Potato Research Station, Modipuram, Uttar Pradesh 250 110
  • S K PANDEY
    Senior Scientist, CPRI, Shimla, Himachal Pradesh 171 001, Central Potato Research Station, Modipuram, Uttar Pradesh 250 110

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Issue

Vol. 69 No. 3 (1999)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Agricultural Sciences 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

SINGH, S. V., GAUR, P. C., & PANDEY, S. K. (2013). Phenotypic stability of advanced hybrids for yield in early and main potato (Solanum tuberosum) crop. The Indian Journal of Agricultural Sciences, 69(3). https://epubs.icar.org.in/index.php/IJAgS/article/view/26557