Effect of essential oils on vase life of cut flowers of Solidago canadensis L. (Golden rod)

The present study was done at Antoniades Research Branch, Ornamental Plants and Landscape Gardening Res. Dept., Hort. inst., ARC, Alexandria, Egypt, during the two successive seasons of 2019 2020. aim this work to evaluate ability use Nigella sativa, Rosmarinus officinalis Citrus lemon essential oils (EOs) 0.0,50,100,200 mg/l as holding solution on reducing bacterial decay prolonging vase life solidago cut spike. highest significant increase in obtained after application EO 200 which 15.78days first 16.85 second season respectively compared rosemary , control treatments. While treatment 6.98 and7.00 days both respectively. Also, recorded final water uptake, shoot fresh weight/shoot dry weight ratio chlorophyll a & b content. Moreover, caused decreased loss flower reduced number colonies solution.