Effects of Sowing Date on Soybean Yield and Quality Characteristics in Relation to Soil Properties

Authors

DOI:

https://doi.org/10.24925/turjaf.v13i12.4228-4235.8385

Keywords:

soybean, sowing date, yield, soil properties, Mediterranean climate

Abstract

Increasing consumption of plant-based proteins highlights the central role of soybean cultivation. The purpose of this research was to determine the effect of different planting times on grain yield and some quality characteristics of regional soybean cultivars. Thus, four soybean cultivars were planted with three different planting times in a randomized complete block design under the Köşk conditions of the Aydın region. In addition, soil characteristics of the experimental area were analyzed, and findings were assessed accordingly. The number of branches per plant, number of pods per plant, 100-seed weight, number of seeds per pod, days to maturation, grain yield, and protein content and oil content were evaluated to be significantly influenced by time of planting and cultivar. The interaction between time and cultivar was significant for number of seeds per pod, grain yield, and protein content. Grain yield values ranged between 358-395 kg da⁻¹, in which it can be noted that as planting time was delayed, grain yield decreased. In terms of effective performance, cultivars applied performed differently according to planting time; the highest yield (395 kg da⁻¹) was obtained from Altınsoy and Cinsoy. Preliminary soil testing for baseline data showed that the experimental site had uniform soil properties, confirming that all differences in crop performance were due to plant variety and agronomic practices rather than soil conditions.

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Published

28.12.2025

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Research Paper