Comparison of Growth and Medicinal Herb Pharmaceuticals of Chanthaboon Yellow Rattan Orchids (Dendrobium friedericksianum Rchb. F.) Planted at Different Locations
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Abstract
Background and Objectives: Growth data and content of valuable substances in herbal medicine of Chanthaboon yellow rattan orchids (Dendrobium friedericksianum Rchb. F.) collected in Chanthaburi and Trat provinces were used in a comparative study to increase the potential for commercial medicinal herbs.
Methodology: The orchids collected were categorized into five cultivar groups; Chanthaburi with black eyes, Chanthaburi without black eyes, Trat with black eyes, Trat without black eyes, and Chanthaburi farmer garden, a total of 80 samples were planted for experimentation at the Chiang Mai Royal Agricultural Research Center, Yala Horticultural Research Center, Chanthaburi Horticultural Research Center, and a farmer’s garden in Pathum Thani province (20 samples per planting area). At 20 months of planting, data were collected and statistically analyzed.
Main Results: Chanthaboon yellow rattan orchids had an average growth of 4.69 ± 1.87 pseudobulb, which varied according to the cultivar groups and planting areas (P < 0.001). At the beginning, the Chanthaboon yellow rattan orchids had an average value of 0.0144 ± 0.0040 % w/w for the eriodictyol content, 0.0157 ± 0.0032 % w/w for the homoeriodictyol content, and 0.0720 ± 0.0223 % w/w for the chrysotoxine content. The changes in the eriodictyol content of Chanthaboon yellow rattan orchids were not statistically significant in different cultivar groups and planting areas. Changes in homoeriodictyol content varied by planting areas (P < 0.05) only, and the changes in chrysotoxine content varied by both cultivar groups (P < 0.05) and planting areas (P < 0.05). Among all the planting areas, Chanthaboon yellow rattan orchids of the Trat without black eye group had the highest chrysotoxine production level.
Conclusions: These results indicated an opportunity to safely manage the production of orchids containing important medicinal substances by commercial cultivation.
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