L. C. De , P. Deb , Geetamani Chhetri , Deepak Rai

ICAR-NRC for Orchids, Pakyong, Sikkim, India
Author    Correspondence author
International Journal of Horticulture, 2015, Vol. 5, No. 6   doi: 10.5376/ijh.2015.05.0006
Received: 24 Mar., 2015    Accepted: 03 May, 2015    Published: 20 May, 2015

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

De et al., 2015, Pre- and Post-harvest Physiology of Cymbidium Orchids, International Journal of Horticulture, 2015, Vol.5, No.6 1-5 (doi: 10.5376/ijh.2015.05.0006)

In the present study, an effort has been made on pre-harvest physiology of Cymbidium orchid hyb. ‘Pine Clash Moon Venus’ as effected by pre-harvest foliar treatments and post-harvest physiology as effected by bud opening chemicals. Pre-harvest foliar application with GA₃ (50 ppm) + BA (200 ppm) increased length of spikes, rachis length, number of florets per spike and flower longevity on plants in orchids. Longest spike (60 cm), rachis (30cm), highest number of spikes /plant (4) and number of florets per spike (15) were found with GA₃ (50 ppm) + BA (200 ppm). Carbohydrate content in leaf was estimated maximum with BA (200 ppm) (182mg/g) followed by GA₃ (50 ppm) + BA (200 ppm) (170mg/g). Highest per cent of fully opened buds (75%) and maximum vase life (45 days) were recorded with the chemical combination of Sugar 4% + Salicylic acid 200 ppm. Highest content of carbohydrate (140mg/g) was estimated at bud stage in fresh condition. Minimum carbohydrate content (60mg/g) was observed with Sugar 4% + 8-HQS (200 ppm) followed by Sugar 4% + Salicylic acid 200 ppm) (64mg/g).

Cymbidium; Bud opening; Longevity; Carbohydrate