The relation of appropriate water content on growth of morning glory microgreens
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Abstract
Morning glory is a popular cultivation for economic crop and the most consumed fresh vegetable in Thailand. It is well-known as one of the fastest-growing vegetables. Currently, consumer trends are shifting towards health and nutrition. Microgreens are one way to support healthy individuals due to their higher phytochemical content compared to their mature plants. Furthermore, microgreens are easy to grow in small scales and indoors. However, the differences of water content for morning glory (MG) microgreens are not well known. This study was performed to investigate the effect of water content on yield and quality of the MG microgreens. The MG microgreens (100 seeds/pot) were cultivated in 10×14×6 cm per plant pot made of plastic. Microgreens were grown in the dark for 2 days and then cultivated under light at room temperature for 8 days. This experimental was designed in a completely randomized design (CRD) with 3 treatments of administered water content and 3 replicates, consisting of 15, 25 and 35 ml/plant pot, administered twice daily for 10 days. The results showed that water content was strongly related to germination, seedling fresh weight, seedling height and leaf length of microgreens (R2>0.90). The optimum water content was 25 ml/plant pot and it was harvested at 7 days. Under this condition, the highest germination percentage and seedling weight of microgreens were 75.33% and 477.72 mg/plant, respectively. The seedling height and leaf length of microgreens were 8.00 and 2.20 centimeters, respectively. These results demonstrate that water content has a considerable effect on yield and quality of the microgreens. The water content is important for commercial farmers to predict growth and harvest days and to reduce the cost of commercial microgreen production.
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