Organic apple (Malus ×domestica Borkh.) growers lack effective strategies to manage preharvest drop. For susceptible cultivars, yield losses caused by preharvest drop can exceed 30% at the beginning of harvest. To address this issue, a formulation of aminoethoxyvinylglyine (AVG) designed for organic use was developed and compared with a commercially available AVG formulation.
Researchers evaluated the effects and interactions of the AVG formulation and application number on preharvest drop and fruit maturity in 2017 and 2018. Some of the key findings include:
Reduction in Preharvest Drop: Organic AVG has been proven to effectively reduce the incidence of preharvest drop, ensuring more apples remain on the tree until they reach optimal ripeness.
Improved Fruit Quality: By preventing premature fruit drop, organic AVG helps maintain apple size, firmness, and overall quality.
Eco-friendly Solution: As an organic compound, AVG aligns with sustainable farming practices, making it an ideal choice for organic apple growers and those aiming to reduce chemical inputs.
Economic Advantages: By reducing preharvest drop, growers can achieve higher yields and better marketable produce, enhancing profitability.
AVG approved for organic use appears to be a promising preharvest drop management technology with efficacy similar to that of conventional AVG, and also aligns with the growing demand for sustainable agricultural practices.
Dr. Kon is Associate Professor at North Carolina State university and a Southeastern Apple Research Specialist. He focuses on identifying and addressing the technological and horticultural needs of the southeastern apple industry in North Carolina, South Carolina and Georgia.
The entire article can be read on the HortScience electronic journal website at: https://doi.org/10.21273/HORTSCI17115-23
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