STUDIES ON POSTHARVEST HANDLING OF DAHLIA(Dahlia variabilis Willd.) cv. ‘GIANI ZAIL SINGH’
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Date
2016
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UHF,NAUNI
Abstract
ABSTRACT
The investigation entitled, “Studies on postharvest handling of dahlia (Dahlia variabilis Willd.) cv. ‘Giani Zail Singh’” were carried out at the Experimental Farm and Laboratory of Department of Floriculture and Landscape Architecture, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni-Solan in the year 2015-2016. During the studies, three experiments viz. Standardization of different pulsing solutions; wrapping materials & storage durations and holding solutions on post harvest life of dahlia cv. ‘Giani Zail Singh’ were conducted separately. Pulsing solutions experiment was laid out in Completely Randomized Design with 10 treatments and 3 replications. It was observed that pulsing solution comprising of Sucrose 10 % + 8-HQC (400 ppm) + BA (50 ppm) for 16 hours improved the postharvest parameters such as amount of pulsing solution consumed (11.56 ml), amount of vase solution consumed (44.37 ml), appearance of cut bloom (4.72), flower diameter (12.75 cm), vase life (8.70 days) and minimum weight change (6.01 %) of the cut stems. An experiment of 7 wrapping materials and 4 storage durations was laid out in Completely Randomized Design (Factorial) with 3 replications. Wrapping of cut stems in cellophane and stored for 24 hours at 40 C increased the flower quality and longevity. Holding solutions experiment was laid out in Completely Randomized Design using 13 treatments and 3 replications. Holding solution comprising of Sucrose 2 % + NaOCl (25 ppm) improved different postharvest parameters such as amount of solution consumed (59.08 ml), appearance of cut bloom (4.56), flower diameter (13.21 cm), vase life (9.25 days) and minimum weight change (13.64 %) of the cut stems.
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