Research Article

Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye

Volume: 9 October 23, 2026
TR EN

Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye

Abstract

Türkiye’s vegetable Brassica sector includes traditionally cultivated cabbage and comparatively recent commercial crops such as broccoli, cauliflower and Brussels sprouts. This study examined annual cultivated area and production records for cabbage, red cabbage, Brussels sprouts, cauliflower and broccoli from 2006 to 2025 and generated conditional projections for 2026–2045. Yield was derived from production and cultivated area. Long-term changes were assessed using compound annual growth rates, the Mann–Kendall test, Sen’s slope and the Pettitt test. Naïve, autoregressive integrated moving average and exponential smoothing models were compared using a 2021–2025 holdout period and rolling-origin validation. Three scenarios evaluated the influence of the marked changes recorded in 2025, and production forecasts were reconciled as projected area multiplied by projected yield. Cabbage area declined by 21.8%, but a 61.8% yield increase resulted in 26.5% production growth. Broccoli showed the strongest expansion, increasing by 656.4% in area and 972.4% in production. Production also rose by 144.6% in cauliflower, 105.3% in red cabbage and 426.6% in Brussels sprouts. Under the moderated scenario, 2045 production was projected at approximately 567 thousand tonnes for cabbage, 286 thousand tonnes for red cabbage, 501 thousand tonnes for cauliflower, 383 thousand tonnes for broccoli and 5.2 thousand tonnes for Brussels sprouts. Broccoli projections were particularly sensitive to whether the 2025 area expansion was treated as persistent. The results indicate a gradual diversification of Türkiye’s Brassica vegetable sector, with cabbage increasingly dependent on yield maintenance and broccoli growth driven mainly by additional cultivated area.

Keywords

Supporting Institution

This study received no specific grant or financial support from any funding agency or organization in the public, commercial, or not-for-profit sectors.

Ethical Statement

Ethics committee approval was not required because this study used publicly available aggregate statistical data and did not involve human participants, animals, or personally identifiable information.

Thanks

The authors have no acknowledgements to declare.

References

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Details

Primary Language

English

Subjects

Agricultural Engineering (Other)

Journal Section

Research Article

Publication Date

October 23, 2026

Submission Date

August 7, 2026

Acceptance Date

October 8, 2026

Published in Issue

Year 2026 Volume: 9

APA
Öztürk, H. İ., & Dursun, A. (2026). Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye. Erciyes Tarım Ve Hayvan Bilimleri Dergisi, 9, 165-178. https://doi.org/10.55257/ethabd.2013388
AMA
1.Öztürk Hİ, Dursun A. Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye. Erciyes Tarım ve Hayvan Bilimleri Dergisi. 2026;9:165-178. doi:10.55257/ethabd.2013388
Chicago
Öztürk, Halil İbrahim, and Atilla Dursun. 2026. “Long-Term Dynamics and Forecasts of Cultivated Area, Yield and Production of Major Brassica Vegetables in Türkiye”. Erciyes Tarım Ve Hayvan Bilimleri Dergisi 9 (October): 165-78. https://doi.org/10.55257/ethabd.2013388.
EndNote
Öztürk Hİ, Dursun A (October 1, 2026) Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye. Erciyes Tarım ve Hayvan Bilimleri Dergisi 9 165–178.
IEEE
[1]H. İ. Öztürk and A. Dursun, “Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye”, Erciyes Tarım ve Hayvan Bilimleri Dergisi, vol. 9, pp. 165–178, Oct. 2026, doi: 10.55257/ethabd.2013388.
ISNAD
Öztürk, Halil İbrahim - Dursun, Atilla. “Long-Term Dynamics and Forecasts of Cultivated Area, Yield and Production of Major Brassica Vegetables in Türkiye”. Erciyes Tarım ve Hayvan Bilimleri Dergisi 9 (October 1, 2026): 165-178. https://doi.org/10.55257/ethabd.2013388.
JAMA
1.Öztürk Hİ, Dursun A. Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye. Erciyes Tarım ve Hayvan Bilimleri Dergisi. 2026;9:165–178.
MLA
Öztürk, Halil İbrahim, and Atilla Dursun. “Long-Term Dynamics and Forecasts of Cultivated Area, Yield and Production of Major Brassica Vegetables in Türkiye”. Erciyes Tarım Ve Hayvan Bilimleri Dergisi, vol. 9, Oct. 2026, pp. 165-78, doi:10.55257/ethabd.2013388.
Vancouver
1.Halil İbrahim Öztürk, Atilla Dursun. Long-term dynamics and forecasts of cultivated area, yield and production of major Brassica vegetables in Türkiye. Erciyes Tarım ve Hayvan Bilimleri Dergisi. 2026 Oct. 1;9:165-78. doi:10.55257/ethabd.2013388