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Volume estimation models for avocado fruit

Author

Listed:
  • Mulugeta Mokria
  • Aster Gebrekirstos
  • Hadia Said
  • Kiros Hadgu
  • Niguse Hagazi
  • Workneh Dubale
  • Achim Bräuning

Abstract

Avocado (Persea americana Mill.) is an important horticultural crop and proved to be a very profitable commercial crop for both local consumption and export. The physical characteristics of fruits are an important factor to determine the quality of fruit produced. On the other hand, estimation of fruit volume is time-consuming and impractical under field conditions. Thus, this study was conducted to devise cultivar-specific and generalized allometric models to analytically and non-destructively determine avocado fruit volume of five wildly distributed avocado cultivars. A significant relationship (P ≤ 0.01) was found between fruit diameter, length, and volume of each cultivar. Our best models (VM2 –for cultivar specific, and VM7-generalized model) has passed all the rigorous cross-validation and performance statistics tests and explained 94%, 92%, 87%, 93%, 94% and 93% of the variations in fruit volume of Ettinger, Fuerte, Hass, Nabal, Reed, and Multiple cultivars, respectively. Our finding revealed that in situations where measurements of volume would be inconvenient, or time-consuming, a reliable volume and yield estimation can be obtained using site- and cultivar-specific allometric equations. Allometric models could also play a significant role in improving data availability on avocado fruit physical appearance which is critical to assess the quality and taste of fresh products influencing the purchase decision of customers. Moreover, such information can also be used as a ripeness index to predict optimum harvest time important for planned marketing. More importantly, the models might assist horticulturists, agronomists, and physiologists to conduct further study on avocado production and productivity through agroforestry landuse system across Ethiopia.

Suggested Citation

  • Mulugeta Mokria & Aster Gebrekirstos & Hadia Said & Kiros Hadgu & Niguse Hagazi & Workneh Dubale & Achim Bräuning, 2022. "Volume estimation models for avocado fruit," PLOS ONE, Public Library of Science, vol. 17(2), pages 1-14, February.
    • Handle: RePEc:plo:pone00:0263564
    DOI: 10.1371/journal.pone.0263564
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    References listed on IDEAS

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