Vol. 37 No. 2 (2023): Advances in Horticultural Science
Articles

Improving fruit set and yield of tissue cultured date palm cv. Berhi by using a combined pollination technique

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  • S. Rastgoo,
  • F. Bemani,
  • H. Nooryazdan,
  • M. Izadi
S. Rastgoo
Department of Horticultural Science and Engineering, Faculty of Agriculture and Natural Resources, Persian Gulf University, Borazjan, 7561158808 Bushehr, Iran.
F. Bemani
Department of Horticultural Science and Engineering, Faculty of Agriculture and Natural Resources, Persian Gulf University, Borazjan, 7561158808 Bushehr, Iran.
H. Nooryazdan
Department of Genetics and Plant Breeding, Faculty of Agriculture and Natural Resources, Persian Gulf University, Borazjan, Bushehr, Iran.
M. Izadi
Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz, Iran.
DOI: https://doi.org/10.36253/ahsc-13499

Published 2023-02-21

Keywords

  • Abnormal fruit set,
  • metaxenia,
  • parthenocarpic fruits,
  • Phoenix dactylifera L.,
  • pollen source

How to Cite

Rastgoo, S., Bemani, F., Nooryazdan, H., & Izadi , M. (2023). Improving fruit set and yield of tissue cultured date palm cv. Berhi by using a combined pollination technique. Advances in Horticultural Science, 37(2), 197–208. https://doi.org/10.36253/ahsc-13499

Copyright (c) 2023 Sasan Rastgoo, Fatemeh Bemani, Hamidreza Nooryazdan, Mahmood Izadi

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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Abstract

Tissue-cultured (TC) date palms produce no fruit or low yield due to abnormal fruit setting. To improve the yield of TC ‘Berhi’ palms, trees were pollinated using five pollen sources (Gantar, Ghannami, Mazafati, Zahedi, and Jarvis). The experiment was carried out in three replications for two successive years in a randomized complete blocks design. The fruit set, the fruit and seed physical traits at the Khalal stage, bunch weight at the Tamar and Khalal stages, ripeness of Tamar bunch, and the fruit quality at both Khalal and Tamar stages were measured and monitored. Year factor significantly affected the fruit set and the fruit and seed characteristics. Pollen sources affected fruit set and some seed characteristics significantly. Zahedi+Jarvis pollen treatment that induced 50% normal fruit set and the highest ratio of pulp to seed was found superior. It was also a top treatment in Khalal’s bunch weight (3.11 Kg). Zahedi+Gantar treatment was realized superior in Tamar’s bunch weight (6.00 Kg). Ghannami, Jarvis+Ghannami, and Zahedi+Jarvis treatments produced Khalal’s fruits with higher quality indices but Zahedi+Jarvis treatment was superior in fruit quality at the Tamar stage. Overall, the combined application of Zahedi and Jarvis pollens yielded the most desired outcomes.

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