Research Article

Effects of Microbial Fertilizer Applications on Yield, Fruit Quality and Leaf Characteristics of Red Chief Apple Variety

Volume: 28 Number: 4 July 4, 2025
EN TR

Effects of Microbial Fertilizer Applications on Yield, Fruit Quality and Leaf Characteristics of Red Chief Apple Variety

Abstract

The research was carried out on Red Chief apple variety grafted onto MM106 rootstock in the apple orchard established in 2011 at Yozgat Bozok University in 2022-2023. The study was established to determine the effects of Control (100% fertilizer), 50% reduced fertilizer, 100% reduced fertilizer (without fertilizer), and combinations of fertilizers with microbial fertilizer containing bacteria on fruit yield and quality and vegetative growth. The highest fruit weight was obtained from Control (100% fertilizer dose) + Bacteria application (170.57 g) and 50% reduced fertilizer dose + Bacteria (164.30 g) applications. The lowest fruit weight was determined from a 100% reduced fertilizer dose (without fertilizer) (103.18 g). Total soluble solids were measured with a 20.30% Brix value in the Control (%100 fertilizer) + bacteria and a 19.90% brix value in 50% reduced + bacteria applications. The highest titratable acidity was determined with 0.59% in Control (%100 fertilizer) application. The fruits from the trees of each replication were collected separately and the highest tree yield values were obtained from Control (%100 fertilizer) + bacteria (22.35 kg/tree) and Control (%100 fertilizer) applications (19.63 kg/tree). When the effects of the applications on shoot length were examined, the highest values were determined in Control (%100 fertilizer), Control (%100 fertilizer) + bacteria, and 50% reduced fertilizer + bacteria applications. The highest amount of nitrogen (N) in the leaf was determined in Control (100% fertilizer), Control (100% fertilizer) + bacteria, and 50% reduced + bacteria applications. The highest amount of P was obtained from Control (100% fertilizer) and Control (100% fertilizer) + bacteria applications. The highest amount of K was measured in 50% reduced fertilizer application. It was concluded that microbial fertilizers containing plant growth-promoting bacteria can be used in apples. Replication of the study in different climatic and geographical conditions may increase the extensibility of the results.

Keywords

Ethical Statement

The authors of the article declare that the data, information and documents presented in this article were obtained within the framework of academic and ethical rules, and that all information, documents, evaluations and results were presented in accordance with scientific ethics and moral rules.

Thanks

This study was produced from a first author’s Master thesis, named ‘The effects of microbial fertilizer applications on tree growth and development and fruit properties in apple growing / Mikrobiyal gübre uygulamalarının elma yetiştiriciliğinde ağacın büyüme ve gelişmesi ile meyve özellikleri üzerine etkileri’ presented at Yozgat Bozok University. (YOK Thesis No: 850698 /Date: 25.01.2024).

References

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Details

Primary Language

English

Subjects

Pomology and Treatment

Journal Section

Research Article

Early Pub Date

June 10, 2025

Publication Date

July 4, 2025

Submission Date

January 5, 2025

Acceptance Date

May 6, 2025

Published in Issue

Year 2025 Volume: 28 Number: 4

APA
Koç, A., & Zehir, A. (2025). Effects of Microbial Fertilizer Applications on Yield, Fruit Quality and Leaf Characteristics of Red Chief Apple Variety. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, 28(4), 973-986. https://doi.org/10.18016/ksutarimdoga.vi.1613787


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