Otrzymano: Sierpień 3, 2023
Zaakceptowano: Wrzesień 27, 2023
Opublikowano online: 2023-09-27
S. Akçay, P. Doğan
Kategorie: Agricultural, Horticulture and forestry
Drought scenarios that will be faced in the near future in Mediterranean Basin will affect sustainable crop production in the region and even the drought tolerant crops under rain-fed conditions will need supplemental irrigation Fig is originated from this region and grown under the semi-arid conditions as a drought-prone crop. The aim of this research is to develop irrigation strategies using different irrigation levels in young fig trees. Five irrigation levels were investigated covering the rainfed, as well as the fully irrigated treatment and the 25%, 50% and 75% of the full irrigation level. The vegetative growth parameters (plant height, stem diameter, shoot length, number of leaves) and stem water potential (SWP), leaf area index (LAI) and proline content (PC) were evaluated in a two-year field experiment. The average seasonal water use values (ET) of young trees ranged from 25.5 to 472.2 mm. Plant vegetative growth parameters were affected significantly by irrigation levels and higher growth was measured in S3 and S4 treatments. Plant physiological responses to irrigation levels for SWP, LAI and PC measurements were observed to be significant. In conclusion; 75% irrigation level appear to be a good alternative to fully irrigated treatment for growing young fig trees under water scarce conditions in western Turkey. SWP could be used as a tool in irrigation scheduling of young fig trees. Mean SWP values between -0.82 and -0.86 MPa can be accepted as threshold value for semi-arid regions.
Akçay, S. and Doğan, P. (2023) 'Response of young fig (Ficus carica cv. Sarılop) trees to different irrigation levels in a semi-arid mediterranean environment ', Journal of Elementology, 28(3), [number-number], available: https://doi.org/10.5601/jelem.2023.28.3.3058
deficit irrigation, vegetative growth, stem water potential, LAI, proline content