~ 1056 ~ Journal of Pharmacognosy and Phytochemistry 2021; 10(1): 1056-1061 E-ISSN: 2278-4136 P-ISSN: 2349-8234 www.phytojournal.com JPP 2021; 10(1): 1056-1061 Received: 11-11-2020 Accepted: 20-12-2020 Shiwani Kshirsagar Department of Floriculture and Landscape Architecture, K.N.K. College of Horticulture, Mandsaur, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India Anuj Kumar Department of Floriculture and Landscape Architecture, K.N.K. College of Horticulture, Mandsaur, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India Om Singh Department of Floriculture and Landscape Architecture, K.N.K. College of Horticulture, Mandsaur, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India Roshan Gallani Department of Floriculture and Landscape Architecture, K.N.K. College of Horticulture, Mandsaur, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India Reena Parmar Department of Floriculture and Landscape Architecture, K.N.K. College of Horticulture, Mandsaur, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India Corresponding Author: Shiwani Kshirsagar Department of Floriculture and Landscape Architecture, K.N.K. College of Horticulture, Mandsaur, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India Effect of postharvest preservatives on vase life of cut rose ( Rosa hybrida L.) cv. top secret Shiwani Kshirsagar, Anuj Kumar, Om Singh, Roshan Gallani and Reena Parmar Abstract The research experiment was laid out in completely randomized design with three replication and fourteen treatments like Control, Sucrose (2.0%), Silver Nitrate (30 ppm), Silver Nitrate (60 ppm), Boric Acid (75mg/l of water), Boric Acid (100mg/l of water), Sucrose (2.0%) + Silver Nitrate (30 ppm), Sucrose (2.0%) + Silver Nitrate (60 ppm), Sucrose (2.0%) + Boric Acid (75mg/l of water), Sucrose (2.0%)+ Boric Acid (100mg/l of water), Sucrose (2.0%) + Silver Nitrate (30 ppm) +Boric Acid (75mg/l of water), Sucrose (2.0%) + Silver Nitrate (30 ppm) + Boric Acid (100mg/l of water),Sucrose (2.0%) + Silver Nitrate (60 ppm) + Boric Acid (75mg/l of water), Sucrose (2.0%)+ Silver Nitrate (60 ppm) + Boric Acid (100mg/l of water) were used for experiment. Data revealed that the treatment T11 (Sucrose 2.0% + AgNo3 30 ppm + Boric Acid 75 mg/l of water) recorded the best performance with respect of days taken to 1 st petal spreading, change in weight of flowers at senescence, flower freshness score, maximum flower head diameter, petal discoloration score, change in TSS, change in chlorophyll content, change in anthocyanin content and vase life. Keywords: AgNo3, boric acid, ppm Introduction The rose (Rosa hybrida L.) is a woody perennial flowering plant and most popular flower of all gardens throughout the world. It is an indication of love, perfection, elegance and romance. It was called “The Queen of Flowers” firstly by Greek poetess in her “Ode to the Rose” (Muhummad et al., 1996) [18] . Rose is belonging to family Rosaceae and genus Rosa. A numbers of species are found in the northern temperate climate zone, tropical and subtropical parts of the world (Zlesak, 2006) [28] . It is hard to imagine a garden without roses (Farahat et al., 2014) [6] . Apart from being admired for its beauty, rose is used in worship, garlands, bouquets, cut flowers preservers and decorations etc. because of variation in growth habit, shape, size, form, colour, fragrance and so many varieties, rose have wide suitability. Roses are acknowledged extremely beneficial for economical benefits being the good source of unprocessed material for cosmetics, perfumery and other agro-based industries. Gulkand is a value added product of rose petals used as a good digestive tonic and blood purifiers. Fruits are applied on wound, sprain, injuries and foul ulcer. Rose hips are used to make rose syrup which is rich in vitamin ‘C’ and used for different purpose. It secures 1 st position in world floriculture trade. Rose is one of the important cut flower, which have great demand in the national as well as international market. Major rose growing countries are France, Spain, USA, Italy, South Africa, and India. Rose is one of the potentially valuable cut flower and is an important commercial flower crop of our country. In India cut roses are grown in different parts of the country in which, Karnataka and Maharastra are major rose growing state of the country followed by Tamil Nadu, West Bengal and Himachal Pradesh. Post-harvest life is an important criteria for evaluation of cut flower quality, for both domestic and international markets. It has been established that the post-harvest behavior of rose is an outcome of the physiological processes occurring in the leaves, stem, flower bud, the leafless peduncle connecting the bud to the stem and other related thing. Mineral nutrition, foliar feeding, irrigation and growth regulator sprays were found to influence vase life and post- harvest quality of cut rose. Vase life is the period during which cut flower or cut foliage maintain its appearance in a vase. Vase life refers to the duration of time cut flowers retains their appearance and aesthetic value, especially when sitting vase water. The vase life of cut flower with its keeping quality is most important and economic for rose growing farmers. Improvement of the keeping quality and enhancement of vase life of cut rose is an important area of research.