scholarly journals Growth, Development and Ornamental Value of Miscanthus sinensis (Andersson) Species Depending on the Dose of Shrimp Biowaste

Agriculture ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 67
Author(s):  
Piotr Żurawik
Keyword(s):  
High Salinity ◽  
Mineral Soil ◽  
Growing Season ◽  
Miscanthus Sinensis ◽  
Alkaline Ph ◽  
Important Group ◽  
Planting Material ◽  
Miscanthus Giganteus ◽  
Before And After ◽  
Marine Products

Crustaceans, including shrimps, are an important group of marine products processed in over 50 countries around the world. It is one of the most profitable and fast-growing processing branches. About 30 to 40% of crustaceans are used immediately after fishing, while 60–70% are processed. This generates thousands of tons of waste, proper management of which becomes increasingly important. The study was conducted in the years 2015–2017. Planting material included rhizomes of Miscanthus sinensis and Miscanthus × giganteus. Shrimp shells, dried and fragmented into 2–3 mm long pieces, were added to the soil at a dose of 5%, 10% and 15%. Mineral soil without the dried waste served as control. pH and substrate salinity were determined both before and after the growing season, and vegetative and generative traits of the plants were assessed. Shrimp biowaste is rich in N, P, K, Ca and Mg, has alkaline pH and high salinity. Its effects on plants depend on its dose and plant species. Miscanthus sinensis turned out more sensitive to the substrate salinity but in both species shrimp biowaste improved their ornamental value. For Miscanthus sinensis the most beneficial dose was 5%, while for Miscanthus × giganteus it was 15%.

Weed emergence and seedbank after three years of repetitive shallow cultivation in a muck soil field

2021 ◽  
Author(s):  
M.-J. Simard ◽  
Robert Nurse ◽  
Audrey-Kim Minville ◽  
Lydia Maheux ◽  
Martin Laforest ◽  
...  
Keyword(s):  
Mixed Models ◽  
Mineral Soil ◽  
Growing Season ◽  
Soil Disturbance ◽  
Emergence Patterns ◽  
Muck Soil ◽  
Before And After ◽  
Crop Harvest ◽  
Common Purslane ◽  
Weed Emergence

Frequent cultivation is often used to control weeds in crops such as lettuce. The efficacy of this technique on weed populations has been evaluated, but the effect on weed emergence and seedbanks is less documented. Studies in mineral soil indicate that soil disturbance can increase both weed emergence and seed persistence depending on where seeds are redistributed in the soil profile. Evaluations done in muck soil are scarce. This study evaluated the effect of two and four repetitive shallow (3.4 to 7.1 cm deep) cultivations on weed emergence and the weed seedbank in muck soil. Cultivation treatments (0, 2 and 4 cultivations using a inter-row rototiller) were done in lettuce plots from 2017 to 2019. Weed density was evaluated by species before each cultivation date and after crop harvest. Viable seedbanks were evaluated by collecting soil samples before and after each growing season and placing them in greenhouse flats. Statistical analyses were based on mixed models. Results showed that shallow cultivation modified the emergence patterns of weeds but did not reduce total emergence during the subsequent years or viable seedbanks. After two seasons without seed inputs, total emergence was reduced by 46.6% and the seedbank was reduced by 31.7% regardless of the cultivation treatment. However, the seedbank of the very abundant common purslane (<i>Portulaca oleracea</i>) remained high.

Miscanthus: genetic diversity and a method of ploidy variability identification using fluorescent cytophotometry

2017 ◽  
Vol 4 (3) ◽  
pp. 19-27
Author(s):  
N. Kovalchuk ◽  
M. Roik
Keyword(s):  
Genetic Diversity ◽  
Gene Pool ◽  
Vegetative Reproduction ◽  
Bioenergy Crops ◽  
Miscanthus Sinensis ◽  
Planting Material ◽  
Miscanthus Giganteus ◽  
Genome Ploidy

Aim. Due to the introduction of the Miscanthus species, attributed to the European gene pool, in Ukraine, it is necessary to develop methods for the determination of genome ploidy and adjust them to the foreign methods in order to ensure high purity of the planting material, to study genetic diversity, to produce new polyploid lines and select alternative Miscanthus × giganteus clones (3x). Methods. Cytological, biotechnological, fl uores- cence cytophotometry, fi eld, laboratory. Results. Domestic diploid millet (Panicum) variety of Veselopodilska Research Breeding Station and grain sorghum (Sorghum) variety Dniprovsky, whose number of chromosomes was previously investigated, served as standard genotypes for the ploidy identifi cation with Partec ploidy analyser (Germany). Using the technique, various species of miscanthus, namely Miscanthus × giganteus (3x), Miscanthus sinensis (2x), and Miscanthus saccharifl orus (2x) were selected and multiplied by clones. The heterogeneity of the Miscanthus × giganteus (3x) population of the two ecotypes was determined based on the level of genome ploidy in the vegetative reproduction of rhizomes which originated from Poland and Austria. Conclusions. Due to the complexity of cytological research, the need to involve the representatives of the Miscanthus genus in the development of bioenergy in Ukraine, and to differentiate them both in vivo and in vitro conditions to assimilate the European gene pool, a new methodology for identifi cation of plant material of different miscanthus species using the method of fl uorescence cytophotometry is presented. The ploidy of commercial foreign samples of miscanthus, introduced in the network of research and selection stations of the Institute of Bioenergy Crops and Sugar Beets of NAAS, was identifi ed.

Bacterioplankton, Phytoplankton, and Zooplankton Communities in a British Columbia Coastal Lake Before and After Nutrient Reduction

1986 ◽  
Vol 43 (8) ◽  
pp. 1504-1514 ◽  
Author(s):  
F. Joan Hardy ◽  
Ken S. Shortreed ◽  
John G. Stockner
Keyword(s):  
British Columbia ◽  
Sockeye Salmon ◽  
Inorganic Nitrogen ◽  
Size Fraction ◽  
Growing Season ◽  
Nutrient Reduction ◽  
Nitrogen And Phosphorus ◽  
Coastal Lake ◽  
Before And After ◽  
High Concentrations

Inorganic nitrogen and phosphorus were applied weekly during the growing season from 1980 to 1982 and twice weekly in 1983 to Hobiton Lake, a warm monomictic coastal lake in British Columbia. The lake was not fertilized in 1984. Average numbers of bacteria during the growing season decreased from a high of 1.53 × 106∙mL−1 in the fertilized condition to 0.84 × 106∙mL−1 in the unfertilized condition. Chlorophyll a concentrations decreased from a maximum seasonal average of 2.69 μg∙L−1 (1981) to 1.30 μg∙L−1 (1984), and algal numbers decreased from 5.83 × 104∙mL−1 (1983) to 2.29 × 104∙mL−1 (1984). Although the numbers of phytoplankton in each size fraction (picoplankton, nanoplankton, or microplankton) decreased in the unfertilized condition, the greatest change was an almost fourfold decrease in picoplankton, which consisted of 90% cyanobacteria (primarily Synechococcus spp.). Abundance of the large diatoms Rhizosolenia spp. and Melosira spp. increased in 1984, resulting in an increase in average seasonal algal volume. Average densities of medium (0.15–0.84 mm) and large (0.85–1.5 mm) zooplankton were greatest in 1982, while rotifers and small zooplankton (0.10–0.14 mm) were most dense in 1984 following nutrient reduction. The lake had relatively high concentrations of planktivorous juvenile sockeye salmon (Oncorhynchus nerka) that appeared to minimize any direct effect of nutrient additions on zooplankton densities.

Improved Feedstock Option or Invasive Risk? Comparing Establishment and Productivity of Fertile Miscanthus × giganteus to Miscanthus sinensis

2016 ◽  
Vol 10 (2) ◽  
pp. 317-328 ◽  
Author(s):  
Catherine L. Bonin ◽  
Evans Mutegi ◽  
Allison A. Snow ◽  
Maria Miriti ◽  
Hsiaochi Chang ◽  
...  
Keyword(s):  
Miscanthus Sinensis ◽  
Miscanthus Giganteus

scholarly journals Influence of increasing nickel content in soil on Miscanthus × giganteus Greef and Deu. Yielding and on the content of nickel in above-ground biomass / Wpływ wzrastającej zawartości niklu w glebie na plonowanie Miscanthus x giganteus Greef i Deu. i zawartość niklu w nadziemnej biomasie

2015 ◽  
Vol 41 (1) ◽  
pp. 72-79
Author(s):  
Maciej Bosiacki
Keyword(s):  
Nickel Content ◽  
Mineral Soil ◽  
Nickel Sulfate ◽  
First Year ◽  
Above Ground Biomass ◽  
Miscanthus X Giganteus ◽  
Miscanthus Giganteus ◽  
High Moor ◽  
High Nickel ◽  
High Moor Peat

Abstract The aim of the research conducted in a 2-year pot experiment in an unheated plastic tunnel was to determine suitability of Miscanthus × giganteus for phytoextraction of nickel from soil as well as to assess tolerance of this species on increasing concentrations of this metal in soil. Pots were filled with mineral soil (sand) and a mixture of soil with high-moor peat and three levels of nickel were introduced, i.e. 75 mg dm-3, 150 mg dm-3 and 600 mg dm-3 and the control combinations used substrates without the addition of nickel. Nickel was introduced only in the first year of the experiment in the form of nickel sulfate (NiSO4 · 6H2O). Miscanthus × giganteus accumulated a considerable amount of nickel in biomass. Miscanthus × giganteus growing in contaminated mineral soil turned out to be a species tolerant to high nickel concentrations

Productivity of Oxycoccus macrocarpus Pers. on mineral soils

10.12737/2176 ◽  
2014 ◽  
Vol 3 (4) ◽  
pp. 20-24
Author(s):  
Корепанова ◽  
Darya Korepanova ◽  
Корепанов ◽  
Dmitriy Korepanov ◽  
Акшикова ◽  
...  
Keyword(s):  
Growing Season ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
State University ◽  
Planting Material ◽  
Udmurt Republic ◽  
Mineral Soils ◽  
Nizhny Novgorod Region

The paper presents the data of groundwater research of European cranberry productivity on mineral soils in the climatic conditions of the Udmurt Republic useful for industrial and private cultivation. Research aimed at developing technology of European cranberry cultivation on mineral soils, have scientific and practical perspective. Experience in direct rooting of European cranberry cuttings on mineral soils was conducted in 2010…2011 in the botanical garden of the Udmurt State University. As the planting material semilignified European cranberry cuttings were used harvested in the spring before the growing season in the Nizhny Novgorod region.

scholarly journals Structural adaptations of octaheme nitrite reductases from haloalkaliphilic Thioalkalivibrio bacteria to alkaline pH and high salinity

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0177392 ◽  
Author(s):  
Anna Popinako ◽  
Mikhail Antonov ◽  
Alexey Tikhonov ◽  
Tamara Tikhonova ◽  
Vladimir Popov
Keyword(s):  
High Salinity ◽  
Alkaline Ph ◽  
Nitrite Reductases ◽  
Structural Adaptations

Empirical Evidence of Long-Distance Dispersal in Miscanthus sinensis and Miscanthus × giganteus

2011 ◽  
Vol 4 (1) ◽  
pp. 142-150 ◽  
Author(s):  
Lauren D. Quinn ◽  
David P. Matlaga ◽  
J. Ryan Stewart ◽  
Adam S. Davis
Keyword(s):  
Miscanthus Sinensis ◽  
High Wind ◽  
Dispersal Patterns ◽  
Long Distance ◽  
Bioenergy Grasses ◽  
Wind Speeds ◽  
Miscanthus Giganteus ◽  
Prevailing Wind Direction ◽  
Wind Events ◽  
Dispersal Distances

AbstractMany perennial bioenergy grasses have the potential to escape cultivation and invade natural areas. We quantify dispersal, a key component in invasion, for two bioenergy candidates:Miscanthus sinensis and M. × giganteus. For each species, approximately 1 × 106 caryopses dispersed anemochorously from a point source into traps placed in annuli near the source (0.5 to 5 m; 1.6 to 16.4 ft) and in arcs (10 to 400 m) in the prevailing wind direction. For both species, most caryopses (95% for M. sinensis and 77% for M. × giganteus) were captured within 50 m of the source, but a small percentage (0.2 to 3%) were captured at 300 m and 400 m. Using a maximum-likelihood approach, we evaluated the degree of support in our empirical dispersal data for competing functions to describe seed-dispersal kernels. Fat-tailed functions (lognormal, Weibull, and gamma (Γ)) fit dispersal patterns best for both species overall, but because M. sinensis dispersal distances were significantly affected by wind speed, curves were also fit separately for dispersal distances in low, moderate, and high wind events. Wind speeds shifted the M. sinensis dispersal curve from a thin-tailed exponential function at low speeds to fat-tailed lognormal functions at moderate and high wind speeds. M. sinensis caryopses traveled farther in higher wind speeds (low, 30 m; moderate, 150 m; high, 400 m). Our results demonstrate the ability of Miscanthus caryopses to travel long distances and raise important implications for potential escape and invasion of fertile Miscanthus varieties from bioenergy cultivation.

scholarly journals Effect of Organic and Mineral Soil Fractions on Sorption Behaviour of Chlorophenol and Triazine Micropollutants

2009 ◽  
Vol 60 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Sanja Stipičević ◽  
Sanja Fingler ◽  
Vlasta Drevenkar
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Mineral Soil ◽  
Freundlich Isotherm ◽  
Sorption Process ◽  
Mineral Surface ◽  
Sorption Behaviour ◽  
Soil Fractions ◽  
Before And After ◽  
Sorption Intensity

Effect of Organic and Mineral Soil Fractions on Sorption Behaviour of Chlorophenol and Triazine MicropollutantsThis article compares the sorption behaviour of 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol, pentachlorophenol, chlorotriazine atrazine, methylthiotriazine ametryn, methoxytriazine atratone, hydroxyatrazine, and didelakylated atrazine in a topsoil and an aquifer sediment before and after removal of sorbent organic matter and in humic acid. Freundlich isotherm coefficients Kf and 1/n and free energy change (δG°) were calculated for all compounds in all sorbents. According to sorbent pH values, chlorophenolate anions and uncharged triazine species dominated in all sorption experiments with topsoil and aquifer sediment. In experiments with humic acid, chlorophenols, atrazine, and didealkylated atrazine existed almost completely as neutral species, whereas protonated species dominated for hydroxyatrazine, atratone, and ametryn. In addition to a hydrophobic partition, sorption of all compounds in native soil and sediment sorbents includes specific, more polar interactions, which greatly depend on sorbate acidity/basicity, specific properties of the sorbent organic matter and of mineral surface, as well as on the system pH. A significantly greater sorption intensity of all compounds in "organic-free" than in the native aquifer sediment confirmed the importance and possible dominance of mineral surface in the sorption process. Sorption intensity of chlorophenol and triazine compounds in humic acid was closely related to compound hydrophobicity. Greater sorption of almost completely protonated hydroxyatrazine than of the more hydropohobic but uncharged atrazine indicated different humic acid reaction sites for two compounds and consequently different sorption mechanisms.

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