Morphological and Biochemical Responses of Gerbera (Gerbera Jamesonii L.) to Application of Silica Nanoparticles and Calcium Chelate under Hydroponic State
The purpose of this study was to investigate the response of physicochemical properties of gerbera (Gerbera Jamesonii L.) to silica nanoparticles (Nanoparticle-SiO2) and calcium chelate (Ca-Chelate) in nutrient solutions. A factorial experiment based on completely randomized design with two factors was conducted in four replicates. The first factor the concentration of Nanoparticle-SiO2 in nutrient solutions with four levels (0, 20, 40, 80 mg L-1), and the second factor was the concentration of Ca-Chelate in the nutrient solution with four levels (0, 60, 120 and 240 mg L-1). Flower diameter, peduncle length, leaf area, fresh and dry weights of root, leaf and flower, stem bending, leaf ionic leakage, chlorophyllindex, maximum efficiency of Photosystem II (Fv/Fm), percentages of cellulose, hemicellulose, and holocellulose in stem, and phenylalanine ammonia-lyase activity in leaves were measured. According to the results, in comparison to the control, application of 240 mg L-1 Ca-Chelate together with 80 mg L-1 Nanoparticle-SiO2, resulted in 1.5 times less stem bending and decreased leaf ionic leakage by 28%. The highest activity of phenylalanine ammonia-lyase in leaves was observed in the treatment with 60 mg L-1 Ca-Chelate (2.91 unit mg fresh leaves-1). The best treatment in terms of the chlorophyllindex, leaf area, percentages of cellulose and the maximum efficiency of Photosystem II (Fv/Fm) was the treatment with 120 mg L-1 Ca-Chelate and 80 mg L-1 Nanoparticle-SiO2. Therefore, application of 40 mg L-1 Nanoparticle-SiO2 and 60 mg L-1 Ca-Chelate in the hydroponic nutrition solution can be suggested for gerbera plants.
Investigation of Some Morphological and Biochemical Characteristics and Vase Life of Gerbera jamesonii cv. Dune Cut Flower Using Humic Acid and Nano Calcium Chelate
In order to investigate the effect of humic acid and nano-calcium chelate on Gerbera jamesonii cv. Dune, an experiment was performed as factorial based on a completely randomized design with two factors and three replications in hydroponic conditions. First factor was included: humic acid in 4 concentrations of 0 (control), 500, 1000, and 2000 mg L-1 as drench and the second factor: nano-calciu...متن کامل
Investigation on Some Morphological and Physiological Characteristics of Gerbera jamesonii as Affected by Humic Acid and Nano-Calcium Chelate in Hydroponic Culture Conditions
In order to investigate the effect of humic acid (HA) and nano-calcium chelate on the cut flowers of gerbera cv. Dune, an experiment was performed as a completely randomized design with two factors and three replications in hydroponic conditions. The first factor included humic acid at 4 concentrations of 0 (control), 500, 1000, and 2000 mg L-1 as drench and the second factor was ass...متن کامل
Postharvest Life of Cut Gerbera (Gerbera jamesonii) as Affected by Nano-silver Particles and Calcium Chloride
The purpose of this study was to evaluate the effects of Nano-silver (NS), calcium chloride (CaCl2) and their combinations on Gerbera jamesonii ‘Carambole’ cut flowers. The experiment was conducted as a completely randomized design (CRD) with 10 treatments and four replications, with three flowers in each replication. Treatments consisted of 5 mg L-1 NS, 1% and 2% CaCl2, 5 mg L-1 NS+ 1% CaCl2, ...متن کامل
Comparative Evaluation of Growth, Yield and Quality Characteristics of Various Gerbera (Gerbera jamesonii L.) Cultivars under Protected Condition
Ten gerbera cultivars (‘Labinel’, ‘Lilla’, ‘Alp’, ‘Alberino’, ‘Bonnie’, ‘Avemaria’, ‘Mammut’, ‘Lexus’, ‘‘Terramixa ’ & ‘Sarolta’) were evaluated for their growth, yield and quality characteristics under protected conditions during 2011. Among the cultivars studied, there were highly significant variations observed for growth, yield and quality parameters. Longest stalk length (60.3 cm) was exhi...متن کامل
effect of postharvest application of chitosan and calcium chloride on decay and quality attributes of sweet cherry
چکیده ندارد.15 صفحه اول
A high frequency shoot organogenesis and plant establishment protocol has been developed for Gerbera jamesonii from ex vitro leaf derived callus. The optimal callus was developed on Murashige and Skoog (MS) basal medium supplemented with 0.4 mg L 6-benzylaminopurine (BAP), 4.0 mg L -naphthalene acetic acid (NAA) and 3% (w/v) sucrose. Two callus types differing in their structures and growth rat...متن کامل
دوره 10 شماره 4
تاریخ انتشار 2020-12-01
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