Enhancing Longevity: Extending the Vase Life of Asparagus setaceus (syn. plumosus) with Chemical Preservatives

AbstractAsparagus setaceus, also known as Asparagus plumosus, is a popular cut filler due to its delicate, feathery foliage and versatility in floral compositions. However, its tender nature makes it prone to mechanical damage, pests, and diseases, which affect its post-harvest quality and vase life. Hence, the present study was conducted at the College of Horticulture, Bagalkot, Karnataka, during 2018-2019 to device the methods of extending vase life of Asparagus setaceus using chemical preservatives. Uniform, pest-free foliages were harvested for quality assessment. To improve longevity, chemical preservatives were used to maintain freshness and enhance water uptake, thereby increasing market value. The study tested six treatments: distilled water (control), 10% sucrose + 100 ppm 8-HQC, 10% sucrose + 200 ppm 8-HQC, 10% sucrose + 25 ppm BA, 10% sucrose + 0.5% boric acid, and 10% sucrose + 25 ppm BA + 0.5% boric acid. The experiment was conducted under ambient conditions, assessing parameters such as initial fresh weight, vase solution absorption, physiological weight loss, and vase life. Results revealed that the combination of 10% sucrose + 25 ppm BA + 0.5% boric acid (T6) resulted in the highest initial fresh weight, the greatest vase solution uptake, and the longest vase life (8.45 days). This treatment minimized weight loss and maintained the foliage’s aesthetic quality. In contrast, treatments with distilled water or minimal additives showed shorter vase life and greater weight loss. The study concludes that the combination of 10 % Sucrose + 25 ppm BA + 0.5 % Boric acid effectively extends the vase life of Asparagus setaceus, making it a recommended preservative solution for the floriculture industry.