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This study shows that Coriphol™, a pyroligneous acid biostimulant, significantly enhances soybean yield by 40%. It achieves this by boosting chlorophyll and beta-carotene production and carbon capture in plants.

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Area of Science:

  • Agricultural Science
  • Plant Physiology
  • Biochemistry

Background:

  • Modern agriculture faces challenges from increasing global food demand and resource limitations.
  • Biochemical treatments, including organic biostimulants derived from agricultural waste, are increasingly used to improve crop yields.
  • Pyroligneous acid products, such as Coriphol™, represent a category of biostimulants with potential agricultural applications.

Purpose of the Study:

  • To investigate the effects of Coriphol™ on soybean growth and yield.
  • To elucidate the underlying physiological and metabolic mechanisms by which Coriphol™ enhances plant fitness.
  • To determine the optimal concentration of Coriphol™ for maximizing soybean crop yield.

Main Methods:

  • Field trials were conducted during the 2023 growing season to assess the impact of varying Coriphol™ concentrations on soybean growth parameters (plant height, leaf number, leaf size) and final yield.
  • Laboratory studies utilized radiocarbon flux analysis with radioactive 11CO2 to compare metabolic rates in treated and untreated soybean plants.
  • Radio-high-performance liquid chromatography was employed to quantify the synthesis and turnover rates of key leaf metabolites, including chlorophyll a, chlorophyll b, and β-carotene.

Main Results:

  • Coriphol™ application at 2 gallons/acre significantly increased soybean yield by 40% compared to untreated controls.
  • The optimal treatment concentration enhanced chlorophyll a, chlorophyll b, and β-carotene biosynthesis by 3-fold, 2.6-fold, and 4.7-fold, respectively.
  • Coriphol™ treatment led to a 13.8% increase in leaf carbon capture, with elevated metabolic turnover rates for key photosynthetic pigments.

Conclusions:

  • Coriphol™ is an effective biostimulant that significantly improves soybean yield and growth.
  • The enhanced plant fitness is attributed to increased biosynthesis and turnover of photosynthetic pigments, leading to improved carbon assimilation.
  • The findings support the use of pyroligneous acid-based biostimulants as a sustainable approach to boost agricultural productivity.