EFFECT OF X-IRRADIATION ON DATE PALM SEED GERMINATION AND SEEDLING GROWTH

Authors

  • N. A. Al-Enezi Department of Biology, Science College, Dammam University, P.O. Box 838, Dammam 31113, Saudi Arabia
  • A. M. Al-Bahrany Department of Agricultural Biotechnology, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al-Hassa 31982, Saudi Arabia
  • J. M. Al-Khayri Department of Agricultural Biotechnology, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al-Hassa 31982, Saudi Arabia

Keywords:

Date palm, Leaf, Radiation, Root, Seed germination, Growth, X-ray

Abstract

This study was conducted to examine the effect of low doses of X-rays on date palm (Phoenix dactylifera L., cv. Khalas) seed germination and seedling growth. A significant reduction in seed germination was observed in response to X-irradiation as compared to the non-irradiated control. A significant reduction in seed germination percentage (82.85%) began at 0.25 Gy of X-rays and persisted to decline to 61.42% at 15 Gy. Based on accumulative growth percent increase (AGPI), a significant enhancement of root growth was observed in response to increasing X-rays doses. The mean root length increase ranged between 3.7% at 0.05 Gy to 8.05% at 15 Gy after 1 week of X-rays exposure. Similarly after 2 weeks of exposure, a significant increase in root growth started at 0.1 Gy and root growth reaching the highest value (10.94%) at 15 Gy, while root growth reached 15.19% in week 4 at the same dose. A significant increase in leaf length of 0.05-0.25 Gy was observed but at higher doses reduced growth occurred. This study provides an insight into the potential use of X-rays in manipulating growth parameters of date palm and enhances understanding of the physiological responses inflicted by irradiation stress.

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Published

2017-11-03

How to Cite

Al-Enezi, N. A., A. M. Al-Bahrany, and J. M. Al-Khayri. “EFFECT OF X-IRRADIATION ON DATE PALM SEED GERMINATION AND SEEDLING GROWTH”. Emirates Journal of Food and Agriculture, vol. 24, no. 5, Nov. 2017, pp. 415-24, https://ejfa.me/index.php/journal/article/view/900.

Issue

Section

Regular Articles