Impact of Potassium Silicate and Salicylic Acid on Growth, Flowering and Quality Characters of Dendranthema Grandiflorum Plants Under Greenhouse Conditions

Abstract

The impacts of foliar spraying with different potassium silicate concentrations (0.0, 300, 600 and 900 ppm) and salicylic acid (0.0, 100, 200 and 300 ppm) on growth, flowering aspects and some chemical constituents of Dendranthema grandiflorum (Ramat.) Kitamura plant cv. White Rivor were evaluated. Under plastic house conditions, this experiment was carried out at Ornamental Nursery of Faculty of Agriculture, Zagazig University, Egypt, during the consecutive summer seasons of 2019 and 2020. The treatments were laid out in a factorial randomized block design (4 × 4) with three replicates per treatment. The plant height, number of branches and leaves, root length and total fresh and dry weights per plant were significantly greater with 900 ppm potassium silicate treatment compared to the other ones; likewise, the number of inflorescences and flower heads per plant, as well as flower stalk length, were significantly higher. Early flowering and the largest flower heads were achieved in the foliar spray plot with 600 ppm potassium silicate. Using 900 ppm potassium silicate concentration significantly increased total carbohydrates percentage and total chlorophyll content compared to control. In the same trend, using 300 ppm of salicylic acid as foliar spray significantly increased all growth parameters, flowering traits and chemical constituents compared to the other ones under study. From these results, it can be concluded that the interaction treatment application of potassium silicate at 900 ppm plus salicylic acid at 300 ppm proved to have beneficial effects on the growth, flowering and quality of Dendranthema grandiflorum cv. White Rivor plant.

Effect of some Foliar Spray Substances During Growth, Flowering and Chemical Composition of Orange Jasmine Plants Grown under Thermal Stress

“…The obtained results are consistent with those that have been reported by (Abdelsadek et al 2021) on Dendranthema grandiflorum (Ramat.) Fresh and dry weight (g/plant):…”

Bio- and synthetic fertilizers for reducing root rot and wilt and improving growth and flowering characteristics of rose

“…Among these studies, Hasanv and Nejad (2016) found that weekly application of K2SiO3 at 1 mM significantly improved growth, physiological, and biochemical characteristics of geranium under salinity stress. Similarly, Abdelsadek et al (2021) reported that plant height, number of branches and leaves, root length and total fresh and dry weight of Dendranthema grandiflorum cv. White Rivor is greatly increased as a result of the application of K2SiO3 at 900 ppm.…”

“…In addition, Farahani et al, 2020 showed that foliar spraying of Si (0.2%) improved the essential oil composition of Damask rose under water-deficient conditions. Similarly, Abdelsadek et al (2021) found that spraying Dendranthema grandiflorum cv. White Rivor with potassium silicate (900 ppm) significantly increased total carbohydrates and total chlorophyll in leaves.…”

“…In this context, Farahani et al (2020) found that the foliar spraying of Rosa damascena plants under the conditions of water stress with potassium silicate (0.2%) improved the flower yield and the composition of the essential oil. Likewise, Abdelsadek et al (2021) reported that spraying Dendranthema grandiflorum cv. White Rivor with potassium silicate (900 ppm) provided the number of inflorescences, flower heads/plant and the length of the flower stalk.…”