Effectiveness of Soaking with Gibberellic Acid and Kinetin on Germination and Growth Indicators of Two Cultivars of Pistachio Plant Pistaciavera L.
Zaid Khaleel Kadhim
Abstract
Zaid Khaleel Kadhim
Abstract
Abstract The study was conducted in the plant canopy of the Department of Horticulture and Landscape/College of Agriculture/University of Kerbala during the season 2021-2022 to study the effect of three factors, the first factor is two cultivars (Ajami and Nab Al-Jamal) and the second factor is gibberellic acid in three concentrations (0,100,200 mg. L-1) respectively, and the third factor is kinetin in three concentrations and symbolizes (0, 15, 30 mg. L-1) respectively. The results of the statistical analysis showed the following: Nab Al-Jamal cultivar, kinetin at a concentration of (15) mg. L-1 and gibberellin at concentration (100 and 200) mg. L-1 were superior in most of the studied traits as single factors. For bilateral interactions, the concentration of gibberellin with kinetin is (200 + 15) mg. L-1 has outperformed in most of the studied traits. As for the interaction of the cultivar with gibberellin, the interaction treatment (Nab Al-Jamal + 100 mg. L-1 gibberellin) gave the best results in the percentage of germination, speed of germination and germination energy, while the treatment (Ajami + 200 mg. L-1 gibberellin) gave the best results in plant height and stem diameter, while the interaction treatment (Nab Al-Jamal +200 mg. L-1 gibberellin) gave the best results in the number of leaves. The triple interaction was (Ajami + 200 gibberellin + 15 kinetin) mg. L-1 was superior in the results of the following traits: percentage of germination, germination energy, stem diameter and number of leaves. As for the overlap treatment (Nab Al-Jamal + 100 gibberellin + 0 kinetin) mg. L-1 has outperformed in germination speed and plant height.
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Abstract The study was conducted in the plant canopy of the Department of Horticulture and Landscape/College of Agriculture/University of Kerbala during the season 2021-2022 to study the effect of three factors, the first factor is two cultivars (Ajami and Nab Al-Jamal) and the second factor is gibberellic acid in three concentrations (0,100,200 mg. L-1) respectively, and the third factor is kinetin in three concentrations and symbolizes (0, 15, 30 mg. L-1) respectively. The results of the statistical analysis showed the following: Nab Al-Jamal cultivar, kinetin at a concentration of (15) mg. L-1 and gibberellin at concentration (100 and 200) mg. L-1 were superior in most of the studied traits as single factors. For bilateral interactions, the concentration of gibberellin with kinetin is (200 + 15) mg. L-1 has outperformed in most of the studied traits. As for the interaction of the cultivar with gibberellin, the interaction treatment (Nab Al-Jamal + 100 mg. L-1 gibberellin) gave the best results in the percentage of germination, speed of germination and germination energy, while the treatment (Ajami + 200 mg. L-1 gibberellin) gave the best results in plant height and stem diameter, while the interaction treatment (Nab Al-Jamal +200 mg. L-1 gibberellin) gave the best results in the number of leaves. The triple interaction was (Ajami + 200 gibberellin + 15 kinetin) mg. L-1 was superior in the results of the following traits: percentage of germination, germination energy, stem diameter and number of leaves. As for the overlap treatment (Nab Al-Jamal + 100 gibberellin + 0 kinetin) mg. L-1 has outperformed in germination speed and plant height.
Key concepts: Gibberellin, Kinetin, Germination, Gibberellic acid, Cultivar, Horticulture, Canopy, Biology