Utilisation of GMS lines for production ofheterotic bacterial wilt resistant hybrids in Tagetes spp.

Authors

  • P Shilpa College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India Author
  • U Sreelatha College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India Author
  • J S Minimol College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India Author
  • M Sankar College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India Author
  • A Suma ICAR-National Bureau of Plant Genetic Resources, Regional Station, Vellanikkara, Thrissur - 680656, Kerala, India Author

DOI:

https://doi.org/10.24154/jhs.v19i1.2114

Keywords:

Bacterial wilt resistance, carotenoids, heterotic hybrids, male sterile lines, Tagetes species

Abstract

The study was conducted using six testers, of which two (KAU M-1 and KAU M-2) were completely bacterial wilt resistant, and four genetic male sterile lines (GMS), in a line x tester model and further the F1 hybrids were evaluated in a bacterial wilt sick plot for various vegetative, floral and yield parameters along with their response to wilt incidence. Field evaluation for bacterial wilt resistance revealed that out of 24 hybrids, 13 hybrids involving KAU M-1 and KAU M-2 as testers exhibited bacterial wilt resistance. Analysis on heterosis for various characters viz., vegetative, floral, yield and total carotenoids content showed significant heterosis for many of the hybrids over mid parent, better parent and the check variety. The highest standard heterosis for yield was observed for the interspecific hybrid KU Ms-6 xx KAU M-47 (190.84%) followed by an intraspecific hybrid KAU Ms-42 x KAU M-2 (70.93%). Based on the wilt resistance and heterotic performance, these two hybrids can be suggested for commercial cultivation in wilt affected areas.

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Author Biographies

  • P Shilpa, College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

    Department of Floriculture & Landscape Architecture
    College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

  • U Sreelatha , College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

    Department of Floriculture & Landscape Architecture
    College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

  • J S Minimol, College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

    Cocoa Research Centre,
    College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

  • M Sankar, College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

    Department of Floriculture & Landscape Architecture,
    College of Agriculture, Vellanikkara, Kerala Agricultural University, Thrissur - 680656, Kerala, India

  • A Suma, ICAR-National Bureau of Plant Genetic Resources, Regional Station, Vellanikkara, Thrissur - 680656, Kerala, India

    ICAR-National Bureau of Plant Genetic Resources, Regional Station, Vellanikkara, Thrissur - 680656, Kerala, India

References

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Published

26-06-2024

Issue

Section

Original Research Papers

How to Cite

Dr. Shilpa P, Dr. Sreelatha U, Dr. Minimol J.S., Dr. Mini Sankar, & Dr. Suma A. (2024). Utilisation of GMS lines for production ofheterotic bacterial wilt resistant hybrids in Tagetes spp. Journal of Horticultural Sciences, 19(1). https://doi.org/10.24154/jhs.v19i1.2114

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