Next Article in Journal
Effects of Different Microbial Inocula on Tomato Tolerance to Water Deficit
Next Article in Special Issue
Comparison of Greenhouse Energy Requirements for Rose Cultivation in Europe and North Africa
Previous Article in Journal
Alleviation of Salinity Induced Oxidative Stress in Chenopodium quinoa by Fe Biofortification and Biochar—Endophyte Interaction
Previous Article in Special Issue
Bioregulators Can Improve Biomass Production, Photosynthetic Efficiency, and Ornamental Quality of Gazania rigens L.
Open AccessCommunication

Effects of Depolymerized Gellan with Different Molecular Weights on the Growth of Four Bedding Plant Species

Department of Horticulture, West Pomeranian University of Technology, 3 Papieża Pawła VI Str., 71-459 Szczecin, Poland
Agronomy 2020, 10(2), 169;
Received: 8 January 2020 / Revised: 16 January 2020 / Accepted: 22 January 2020 / Published: 24 January 2020
New solutions allowing for the shortening of the growing cycle and improvements in plant quality are constantly sought in order to improve the efficiency of bedding plant production under covers. Biodegradable polysaccharides and their derivatives have become increasingly popular in horticulture as plant growth promoters. A greenhouse pot experiment was conducted to evaluate the effects of depolymerized gellan of different molecular weights (MW 56 kDa and 77 kDa) on the growth and physiological parameters of ornamental bedding plants Rudbeckia hirta L., Salvia splendens Sellow ex J.A. Schultes, Scabiosa atropurpurea L., and Tithonia rotundifolia (Mill.) S.F. Blake. The results showed that the application of depolymerized gellan accelerated flowering and stimulated the growth of all assessed species, regardless of MW. The plants treated with depolymerized gellan grew higher and had greater fresh weight of their above-ground parts, higher leaf relative chlorophyll content (SPAD; soil and plant analysis development), and higher stomatal conductance (gs). The use of 56 kDa gellan fraction resulted in the formation of inflorescences with the greatest fresh weight in S. atropurpurea. Leaves of R. hirta treated with this fraction showed the highest values of SPAD and gs. This study demonstrated that gellan derivatives of low MW may be used for the production of innovative plant biostimulants. View Full-Text
Keywords: biopolymers; polysaccharides; floriculture; plant growth regulators biopolymers; polysaccharides; floriculture; plant growth regulators
Show Figures

Figure 1

MDPI and ACS Style

Salachna, P. Effects of Depolymerized Gellan with Different Molecular Weights on the Growth of Four Bedding Plant Species. Agronomy 2020, 10, 169.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop