Growth of Chrysanthemum Cultivars as Affected by Silicon Source and Application Method

Abstract

Abstract. The effect of different silicon (Si) sources and methods of application on the growth of two chrysanthemum cultivars grown in a soilless substrate was investigated. Rooted terminal cuttings of Dendranthema grandiflorum 'Lemmon Eye' and 'Pink Eye' were transplanted into pots containing a coir-based substrate. A nutrient solution containing 0 or 50 mg･L -1 Si from calcium silicate (CaSiO 3 ), potassium silicate (K 2 SiO 3 ) or sodium silicate (Na 2 SiO 3 ) was supplied once a day through an ebb-and-flood sub irrigation system. A foliar spray of 0 or 50 mg･L -1 Si was applied twice a week. Cultivar and application method had a significant effect on plant height. Cultivar, application method, and Si source had a significant effect on plant width. Of the three Si sources studied, K 2 SiO 3 was found to be the best for the increasing number of flowers, followed by CaSiO 3 and Na 2 SiO 3 . In both the cultivars, sub irrigational supply of Si developed necrotic lesions in the older leaves at the beginning of the flowering stage as compared to the control and foliar spray of Si. Cultivar, application method, Si source, and their interactions had significant influence on leaf tissue concentrations of calcium (Ca), potassium (K), phosphorus (P), magnesium (Mg), sulfur (S), sodium (Na), boron (B), iron (Fe), and zinc (Zn). The addition of Si to the nutrient solution decreased leaf tissue concentrations of Ca, Mg, S, Na, B, Cu, Fe, and Mn in both cultivars. The greatest Si concentration in leaf tissue was found in 'Lemmon Eye' (1420 µg･g ) when K 2 SiO 3 was applied through a sub irrigation system and by foliar spray, respectively.

Foliar Silicon Spray to Strawberry Plants During Summer Cutting Propagation Enhances Resistance of Transplants to High Temperature Stresses

“…Soil Si application was the most effective in alleviating cadmium stress (Howladar et al, 2018). Furthermore, it was reported that potassium silicate (K 2 SiO 3 ) is more efficient than Na 2 SiO 3 or CaSiO 3 (Sivanesan et al, 2013). The commercial soluble silicate fertilizer 'Keunson' also showed beneficial effects on plant growth (Vu et al, 2017;Song et al, 2021).…”

Growth and Quality Changes of Creeping Bentgrass by Application of Liquid Fertilizer Containing Silicate

“…흡수된 규 소는 모용(trichome), 후막세포 및 아포플라스트 층에 분포 하고 (Sangster et al, 2001), 모용기부에서 실리카겔 중합체 형태로 축적되는 것으로 알려져 있다 (Jones and Handreck, 1967;Samuels et al, 1991 (Sherwood and Vance, 1980;Jeong et al, 2012). 규산 비료는 규산염의 형태나 시비 방법에 따라 식물의 생육이 다르며 (Sivanesan et al, 2013) (Joo and Lee, 2011). Han et al (2014) (Lee et al, 2008;Lim et al, 2012;Choi et al, 2013;Sivanesan et al, 2014 (Lim et al, 2012;Choi et al, 2013;Han et al, 2014 (Schmidt et al, 1999;Choi et al, 2013;Han et al, 2014;Lee et al, 2015).…”