Indian Council of Agricultural Research (ICAR), India
Title: Influence of pulsing treatments on the vase life of Sprengeri fern (Asparagus densiflorus ‘Sprengeri‘)
S. A. Safeena is Scientist in the field of Horticulture (Floriculture and Landscaping) presently working at ICAR Research Complex for Goa. She obtained her M.Sc (Ag.) in Horticulture degree from University of Agricultural Sciences, Dharwad, Karnataka, India and PhD in Horticulture from University of Agricultural Sciences, Bangalore, Karnataka, India. She has published several papers in the journals of national and international repute and is a member of several professional societies.
Sprengeri Fern (Asparagus densiflorus ‘Sprengeri’) is one of the important ornamental filler plant popular as cut foliages in different parts of the world. It is a herbaceous tender evergreen perennial belonging to the family Liliaceae which is used for its attractive, fine-textured foliage. Cut foliages of sprengeri fern looks very attractive when used at the base of large arrangements as cascading filler. Its feathery, emerald-green foliage is also used in preparing bouquets, garlands, swags or wreaths. The management practices bestowed after harvesting lack scientific techniques due to insufficient research and developmental support available. Asparagus densiflorus ‘Sprengeri’need to last longer as a filler material in a vase or flower arrangement in order to get good consumer acceptance. Therefore, this study was conducted to develop possibilities of extending its vase life through pulsing with three different chemicals. The three different chemicals used for pulsing were Benzyl adenine, 8-Hydroxyquinoline citrate and Sucrose. Two durations of pulsing were employed viz., 12 hours and 24 hours. After pulsing treatment, the vase life was evaluated by keeping the cut foliages in conical flasks containing 300 ml distilled water. The experiment was laid out in factorial completely randomised design. Higher fresh weight at senescence, minimum physiological loss in weight of cut foliages and highest uptake of water was found to be associated with cut foliages pulsed with 25mg/l Benzyl adenine+200mg/l 8-Hydroxyquinoline citrate+10 % sucrose for 24 hours. Foliages treated with 300mg/l 8-Hydroxyquinoline citrate supplemented with 10% Sucrose for 12 hours registered the minimum transpirational loss of water. The maximum water balance, lowest ratio between water loss and water uptake and maximum longevity of 17.00 days was experienced by foliages pulsed for 24 hours in Benzyl adenine @25mg/l+8-Hydroxyquinoline citrate @ 200mg/l+Sucrose @10 % and holding them in distilled water.