International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Impact of Gibberellin Foliar Spray on Fruit and True Seed Production in Two Potato Cultivars: Naima and Eclat

Abstract

study was carried out on two potato varieties, Naima and Eclat, in an agricultural field located in the Ram Hamdan area, a key region for potato cultivation in Idlib Governorate. The plants were treated with a gibberellin solution at concentrations of 0, 10, and 20 ppm. Applications were administered every 15 days following plant emergence above the soil surface and continued until the flowering stage. The experiment was designed using a Completely Randomized Design (CRD).

The results demonstrated that the Naima variety exhibited superior performance over the Eclat variety in terms of leaf area (185.66 cm²), number of days to flowering (41.8 days), and fruit weight (4.99 g). Conversely, the Eclat variety outperformed Naima in the number of flowers per plant (63.06 flowers/plant), number of fruits per plant (23.9 fruits/plant), number of true seeds per fruit (166.12 seeds/fruit), seed yield per plant (2.11 g), and seed yield per dunum (8.44 kg/dunum). No significant differences were observed between the two varieties in fruit yield per plant (average 98 g/plant) or the germination rate of true seeds (average 66.8%).

Concerning gibberellin treatments, the sprayed treatments significantly surpassed the control in leaf area, number of days to flower, number of flowers per plant, number of fruits per plant, fruit weight, fruit yield per plant, seed yield per plant, seed yield per dunum, and seed germination rate. However, no significant differences were detected between the gibberellin treatments and the control in the number of true seeds per fruit.

Moreover, the gibberellin treatment at a concentration of 20 ppm significantly outperformed the 10 ppm concentration in leaf area (197.8 cm²), number of days to flowering (38.9 days), number of flowers per plant (65.14 flowers/plant), number of fruits per plant (26.2 fruits/plant), fruit yield per plant (120 g/plant), seed yield per plant (1.99 g/plant), and seed yield per dunum (7.96 kg/dunum). No significant differences were observed between the 20 ppm and 10 ppm concentrations in fruit weight (average 4.57 g), number of true seeds per fruit (149.7 seeds/fruit), or seed germination rate (68.8%).

Country : Syria

1 Bashar Najjar2 Prof. Dr. Rida DRAIE

  1. Horticulture Department, Faculty of Agricultural Engineering, Idlib University, Syria
  2. Horticulture Department, Faculty of Agricultural Engineering, Idlib University, Syria

IRJIET, Volume 9, Issue 3, March 2025 pp. 84-96

doi.org/10.47001/IRJIET/2025.903011

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