Floral biology and reproductive potential of Annona hybrid Arka Sahan

Authors

  • B H Sushmitha ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author
  • T Sakthivel ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author
  • M Sankaran ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author
  • K S Shivashankara ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author
  • M V Dhananjaya ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author
  • D C Lakshmana Reddy ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author
  • R Venugopalan ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India Author

DOI:

https://doi.org/10.24154/jhs.v19i1.2076

Keywords:

Anther dehiscence, flowering, pollen germination, pollen viability, stigma receptivity

Abstract

Annona hybrid Arka Sahan has become a commercially important fruit in recent times and it needs an assisted pollination to get good size. Studies on floral biology of Annona hybrid Arka Sahan revealed that major bloom occurs during March-April. Most of the flowers start opening during the afternoon and continued till 7.00 pm, while, pollen dehiscence mainly occurred in early morning in the following day. The maximum stigma receptivity was recorded on the day of anthesis. Completely pendulous petal was more common in Arka Sahan flowers resulting = improper pollination. The minimum number of beetles and bees were observed between 7.00 to 8.00 am. Pollen germination and viability were lower at anthesis (5.8% and 44%, respectively) and declined as the day progressed. The pendulous nature of petals eventually brings some un-pollinated stigmas potentially resulting in delayed selfing leading to misshaped fruits.

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Author Biographies

  • B H Sushmitha, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Fruit Crops, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

  • T Sakthivel, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Fruit Crops, 
    ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

     

     

  • M Sankaran, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Fruit Crops, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

  • K S Shivashankara, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

  • M V Dhananjaya, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Vegetable Crops, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

  • D C Lakshmana Reddy, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

  • R Venugopalan, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

    Division of Social Sciences & Training, ICAR-Indian Institute of Horticultural Research, Bengaluru - 560089, India

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Published

04-06-2024

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Section

Original Research Papers

How to Cite

Sushmitha, B. H., Sakthivel, T., Sankaran, M., Shivashankara, K. S., Dhananjaya, M. V., Lakshmana Reddy, D. C., & Venugopalan, R. (2024). Floral biology and reproductive potential of Annona hybrid Arka Sahan. Journal of Horticultural Sciences, 19(1). https://doi.org/10.24154/jhs.v19i1.2076

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