Author(s):

M Sanghamitra, J Dilip Babu, BVK Bhagavan, V Siva Kumar, DR Salomi Suneetha and K Uma Krishna

Abstract: The present investigation entitled “Standardization of different potting media on physiological growth and yield of Dendrobium orchid cv. sonia 17 under shade net conditions in high altitude tribal zone of Andhra Pradesh” was carried out at Horticulture Research station, Chintapalli, Visakhapatnam district of Andhra Pradesh during two consecutive years of 2016-17 and 2017-18. The experiment was laid out in a completely randomized design with 10 treatments and each treatment replicated thrice. The data recorded on various parameters viz., physiological growth, yield, vase life and were statistically analyzed. Significant differences were observed among different potting media on various parameters in Dendrobium orchids cv. Sonia 17. Among all the treatments, Coconut husk chips + Brickpieces + Charcoal + Gravel (2:1:1:1) showed significantly the best results with respect to dry weight of plant (10.75 g), root length (17.54 cm), number of roots (32.51), chlorophyll content (1.05 mg/g), yield of spikes per plant per year (3.58), vase life (15.86 days) and longevity of spike on plant (41.23 days).

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