Year 2022, Volume 7, Issue 1
| Year : | 2022 |
| Volume : | 7 |
| Issue : | 1 |
| Authors : | Dina ELISOVETCAIA, Raisa IVANOVA, Natalia MASCENCO, Jan BRINDZA |
| Title : | IMPROVEMENT OF SEED GERMINATION AND SEEDLING RESISTANCE OF BEECH (FAGUS SYLVATICA) BY GROWTH REGULATORS |
| Abstract : | Beech seeds are characterized by a strong exogenous and deep physiological dormancy. They need a long period of stratification, but even through stratification, seed germination is greatly extended in time. The aim of this study was to accelerate the seeds germination and improve the resistance of seedling by application of different growth regulators (gibberellic acid, capsicoside and genistifolioside). The concentration of growth regulators has been modified from 0.1% to 0.001%. The mean daily germination, mean germination time, speed of germination and total germination of seeds were evaluated. The best results of increase in daily germination (up to 18.5%) were obtained under influences of capsicoside and genistifolioside at concentration of 0.001%. Moreover, the time of total seeds germination was reduced by 20-22 days, which allowed for an earlier sowing of germinated seeds. The beneficial effect of treatment with growth regulators was also established when the germinated seeds were transferred to the soil by better adaptation and development of seedlings. The emergence rate and survival rate of beech seedlings increased 2.5-3.3 times. The use of growth regulators affected the morphometric parameters. The leaves from control seedlings were significantly smaller than in the variants with capsicoside and genistifolioside treatment – shorter by 1.7-2.9 cm and narrower by 0.3-1.3 cm. The leaves from seedlings treated with gibberellic acid were 1.5-1.9 times narrower than in the others variants. The relative chlorophyll index determined in the phase of three pairs leaves on seedlings treated with capsicoside and genistifolioside significantly exceeded the control (by 9.2-24.1 g/m2). |
| For citation : | Elisovetcaia, D., Ivanova, R., Mascenco, N., Brindza, J. (2022). Improvement of seed germination and seedling resistance of beech (Fagus sylvatica) by growth regulators. AGROFOR International Journal, Volume 7. Issue No. 1. pp. 90-97. DOI:10.7251/AGRENG2201090E |
| Keywords : | Fagus sylvatica, seed germination, seedlings adaptation, capsicoside, genistifolioside. |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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