Research Article

The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach

Volume: 16 Number: 2 June 1, 2026
EN

The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach

Abstract

This study was conducted to determine the effects of different intra-row spacings (10 cm, 20 cm, 30 cm and 40 cm) and seed harvest periods (1st harvest period; 100% ripening, 2nd harvest period; 50% ripening) on seed yield and quality in Mountain spinach. The research was established in 2023 according to factorial arrangement in randomized blocks in the dry experimental field of Iğdır University Agricultural Application and Research Center Directorate. The effects of row spacing and harvest periods on the examined parameters showed statistical differences. In terms of row distance, plant height was found to be important; 2.71-2.91 m, stem thickness was found to be 14.10-17.13 mm, seed yield was found to be 390-1055 kg/da, stem yield was found to be 1311-2717 kg/da, biological yield was found to be 1701-3772 kg/da, harvest index was found to be 23.13-28.12%, ripening time was found to be 188.33-196.00 days and seed crude protein ratio was found to be 16.26-17.13%. In terms of harvest periods, plant height was found to be 2.77-2.87 m, stem thickness was found to be 14.28-16.70 mm, seed yield was found to be 508-811 kg/da, stem yield was found to be 1757-2044 kg/da, harvest index was found to be 19.07-31.41%, thousand-grain weight was found to be 5.05-6.63 g, the ripening period was found to be 182.92-201.42 days, seed crude protein ratio was found to be 16.51-16.99%, seed NDF ratio was found to be 33.07-37.51%, seed ADF ratio was found to be 20.43-23.88% and stem ADF ratio was found to be 49.56-51.49%. As a result of the research, it was revealed that the highest seed yield and quality values were obtained from applications sown with narrow row spacing (except seed crude protein ratio) and harvested at 50% maturity.

Keywords

Supporting Institution

The Iğdır University (BAP) Scientific Research Projects Coordination Unit

Project Number

ZİF0424Y08

Thanks

The authors thank the BAP Unit for their support

References

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Details

Primary Language

English

Subjects

Pasture-Meadow Forage Plants

Journal Section

Research Article

Publication Date

June 1, 2026

Submission Date

September 16, 2025

Acceptance Date

October 20, 2025

Published in Issue

Year 2026 Volume: 16 Number: 2

APA
Enişte, A. T., & Temel, S. (2026). The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach. Journal of the Institute of Science and Technology, 16(2), 819-831. https://doi.org/10.21597/jist.1784810
AMA
1.Enişte AT, Temel S. The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach. J. Inst. Sci. and Tech. 2026;16(2):819-831. doi:10.21597/jist.1784810
Chicago
Enişte, Ali Tolgahan, and Süleyman Temel. 2026. “The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach”. Journal of the Institute of Science and Technology 16 (2): 819-31. https://doi.org/10.21597/jist.1784810.
EndNote
Enişte AT, Temel S (June 1, 2026) The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach. Journal of the Institute of Science and Technology 16 2 819–831.
IEEE
[1]A. T. Enişte and S. Temel, “The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach”, J. Inst. Sci. and Tech., vol. 16, no. 2, pp. 819–831, June 2026, doi: 10.21597/jist.1784810.
ISNAD
Enişte, Ali Tolgahan - Temel, Süleyman. “The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach”. Journal of the Institute of Science and Technology 16/2 (June 1, 2026): 819-831. https://doi.org/10.21597/jist.1784810.
JAMA
1.Enişte AT, Temel S. The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach. J. Inst. Sci. and Tech. 2026;16:819–831.
MLA
Enişte, Ali Tolgahan, and Süleyman Temel. “The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach”. Journal of the Institute of Science and Technology, vol. 16, no. 2, June 2026, pp. 819-31, doi:10.21597/jist.1784810.
Vancouver
1.Ali Tolgahan Enişte, Süleyman Temel. The Effect of Different Harvesting Periods and Intra-Row Spacings on Some Seed Yield and Quality Characteristics in Mountain Spinach. J. Inst. Sci. and Tech. 2026 Jun. 1;16(2):819-31. doi:10.21597/jist.1784810