Investigating the ideal mixture of soil and organic compound with Bacillus sp. and Trichoderma asperellum inoculations for optimal growth and nutrient content of banana seedlings

2021 ◽  
Vol 137 ◽  
pp. 249-256
Author(s):  
Flávia Melo Moreira ◽  
Paulo Araquém Ramos Cairo ◽  
Ana Lúcia Borges ◽  
Leandro Dias da Silva ◽  
Fernando Haddad
Keyword(s):  
Organic Compound ◽  
Optimal Growth ◽  
Nutrient Content ◽  
Trichoderma Asperellum ◽  
Bacillus Sp ◽  
Ideal Mixture ◽  
The Ideal

Comment on "Thermodynamics of solvent mixtures. I. Density and viscosity of binary mixtures of N-methylpyrrolidinone – tetrahydrofuran and propylene carbonate – acetonitrile"

1987 ◽  
Vol 65 (2) ◽  
pp. 456-457 ◽  
Author(s):  
Norman Gee ◽  
Gordon R. Freeman ◽  
A. V. Anantaraman
Keyword(s):  
Recent Work ◽  
Binary Mixtures ◽  
Propylene Carbonate ◽  
Interaction Parameter ◽  
Dynamic Viscosity ◽  
Kinematic Viscosity ◽  
Solvent Mixtures ◽  
Ideal Mixture ◽  
Deviation Parameter ◽  
The Ideal

In the recent work of Anantaraman (Can. J. Chem. 64, 46 (1986)) the conversion from kinematic viscosity to dynamic viscosity was incorrect. We calculated correct values from the tabulated data. We also give corrected values of the ideal mixture viscosity, the Grunberg–Nissan deviation parameter, and the Hind interaction parameter.

A relation between excess volume and the form of the dependence of density on composition for binary liquid mixtures

1990 ◽  
Vol 55 (7) ◽  
pp. 1653-1659 ◽  
Author(s):  
Ivan Cibulka
Keyword(s):  
Excess Volume ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Excess Volumes ◽  
Binary Liquid ◽  
Ideal Mixture ◽  
The Ideal

A relation of excess volume and density is analyzed for binary liquid mixtures. It is shown that, unlike the ideal mixture, whose density is a monotonous function of composition, extremes may appear on the density curves of mixtures with non-zero excess volumes. Conditions for the existence of extremes are derived. Some examples are also given and briefly discussed.

The uptake of glucose by a thermophilic Bacillus sp

1972 ◽  
Vol 182 (1067) ◽  
pp. 159-170 ◽  
Keyword(s):  
Carbon Source ◽  
Growth Temperature ◽  
Bacillus Stearothermophilus ◽  
Optimal Growth ◽  
Heat Denaturation ◽  
Bacillus Sp ◽  
Optimal Growth Temperature ◽  
Intact Cells ◽  
Thermophilic Bacillus

A phospho enol pyruvate-dependent phosphotransferase that effects the uptake and phosphorylation of glucose and of methyl α -glucoside is inducibly formed when glucose is added to cultures of Bacillus stearothermophilus , var. non-diastaticus , that are growing at 55 °C on media containing acetate or succinate, but not when growing on fructose, as carbon source. This phosphotransferase is no less stable in intact cells than are other proteins: it is diluted out, but not preferentially destroyed, when glucose-grown inocula grow on fructose. Suspensions of non-growing cells kept at 55 °C lose half their glucose phosphotransferase activity in 2 to 3 h; this is similar to the rate at which this activity is lost from suspensions of mesophilic bacilli kept at 35 °C, which is close to their optimal growth temperature. However, in absolute terms, the glucose phosphotransferase activity of mesophiles is much more sensitive to heat denaturation than that of thermophiles.

scholarly journals Adaptation of Soiuy Mullet (Liza Haematocheilus (Temminck & Schlegel, 1845)) to industrial conditions

2020 ◽  
Vol 2020 (2) ◽  
pp. 116-125
Author(s):  
Elena Nikolaevna Ponomareva ◽  
Dinara Tazhbaeva ◽  
Matvey Victorovich Kovalenko ◽  
Valeriy Aleksandrovich Bezverhiy ◽  
Marina Nikolaevna Sorokina
Keyword(s):  
Water Supply ◽  
Optimal Growth ◽  
Nutrient Content ◽  
Water Supply Systems ◽  
Scientific Center ◽  
Closed Water ◽  
Closed Systems ◽  
Mixed Feeds ◽  
Academy Of Sciences ◽  
Supply Systems

The article describes the research carried out in the aquarium complex of the scientific expedition base (SEB) “Kagalnik” of the southern scientific center of the Russian Academy of Sciences. The object of research was mullet species – pilengas (Liza haematocheilus (Temminck & Schlegel, 1845)). The method of adaptation of pilengas to industrial conditions is developed. It is based on step-by-step adaptation of fish to new conditions during the period of 30-40 days. The conversion of pilengas to artificial food was carried out with wet feed based on fresh minced fish and artificial granulated feed. Three types of feeds with different nutrient content were used. The long-term use of wet feed in closed or semi-closed systems is not advisable, due to the rapid water pollution and deterioration of the hydrochemical regime, so pilengas later completely started to eat dry granulated feed, due to which the optimal growth rates were obtained. Pilengas increased body weight while maintaining exterior characteristics. Therefore, the food with high protein content (up to 40%) is recommended for pilengas. The physiological parameters of pilengas blood were satisfactory both in wild individuals and those adapted in a closed water supply. As a result of the conducted research, there was confirmed the possibility of adaptation, maintenance and cultivation of pilengas in the closed water supply systems using mixed feeds.

scholarly journals Isolation and characterization of the cellulose-degrading bacteria from Ngoc Linh ginseng soil in Quang Nam province

2016 ◽  
Vol 14 (1) ◽  
pp. 55-61
Author(s):  
Trần Bảo Trâm ◽  
Phạm Hương Sơn ◽  
Ngô Thị Hiền ◽  
Ngô Thị Hoa ◽  
Nguyễn Thu Hiền ◽  
...  
Keyword(s):  
Thick Layer ◽  
Rrna Gene ◽  
Ideal Condition ◽  
Pseudomonas Sp ◽  
Bacillus Sp ◽  
Isolation And Characterization ◽  
Degrading Bacteria ◽  
Ginseng Soil ◽  
The Ideal

Ngoc Linh ginseng (Panax vietnamensis Ha et Grushv.) is an endemic species in Vietnam and was discovered at the Ngoc Linh mountain (Kon Tum/Quảng Nam). Investigations showed that the soil with a thick layer of humus was the ideal condition for growth and development of Ngoc Linh ginseng. Therefore research on microbial flora as well as cellulose-degrading bacteria in ginseng soil may elucidate factors contributing to acclimatized cultivation of this ginseng in Vietnam. From the soil sample with cultivated Ngoc Linh ginseng in Quang Nam, five bacteria strains with cellulose-degrading activities were isolated (QN1, QN2, QN3, QN4, QN5 with respectively hydrolyzed CMC halos diameters of 10, 11, 22, 7, 22 mm) with cellulase activities of 1,31; 1,23; 2,99; 0,99; 2,51 U/ml. The combination of 16S rRNA gene sequences and cultured/biochemical characteristics of the bacteria showed that the five bacteria strains was classified to be Pseudomonas sp. QN1; Pseudomonas sp. QN4; Bacillus sp. QN2; Bacillus sp. QN3; Roseomonas sp. QN5.

scholarly journals Identificación de especies de cepas nativas de Trichoderma sp. y Bacillus sp. y evaluación de su potencial antagonista in vitro frente al hongo fitopatógeno nativo Moniliophthora roreri en el departamento de Norte de Santander

Respuestas ◽  
2016 ◽  
Vol 13 (1) ◽  
pp. 45-56
Author(s):  
Liliana Yanet-Suárez ◽  
Claudia Patricia Cabrales
Keyword(s):  
Trichoderma Asperellum ◽  
Bacillus Sp ◽  
Trichoderma Longibrachiatum ◽  
Trichoderma Sp ◽  
Para Determinar ◽  
Moniliophthora Roreri

La moniliasis causada por el hongo Moniliophthora roreri es la enfermedad más grave que ataca el cacao, que se presenta en casi todas las zonas del país ocasionando graves pérdidas al agricultor. Se realizó la identificación de la especie de seis cepas del hongo Trichoderma sp. Procedentes de los municipios de: El Zulia, El Tarra, Bucarasica, Cúcuta y el corregimiento de Agua Clara y una cepa bacteriana de Bacillus sp. Aislada en el municipio de Bucarasica, las cuales fueron evaluadas para determinar su potencial antagónico frente a siete cepas nativas del hongo fitopatógeno Moniliophthora roreri aisladas en los municipios: El Zulia, Tibú, Teorama, Sardinata y Bucarasica. Las pruebas de antagonismo que se desarrollaron fueron: plato dual, metabolitos difusibles y plato precolonizado. En todas las pruebas, se empleó un diseño experimental completamente al azar y tres repeticiones por tratamiento. Se pudo establecer que durante los 8 días de evaluación, se ejerció un efecto antagónico e hiperparásitico significativo de (a=0.05) por parte de las cepas de Trichoderma sp. frente las cepas de M. roreri, sólo tres de las seis cepas de Trichoderma sp., mostraron un alto efecto antagónico frente a M. roreri, tanto en forma micelial como metabólica; la cepa bacteriana Bacillus sp., no arrojó resultados positivos en el enfrentamiento. Las cepas del hongo antagónico fueron identificadas como Trichoderma asperellum y Trichoderma longibrachiatum, la cepa bacteriana fue identificada como Bacillus brevis.Palabras Clave: Moniliophthora roreri; Trichoderma sp.; Bacillus sp.; control biológico. 

scholarly journals Potassium Fertilization Affects Floricane Mineral Nutrient Content, Growth, and Yield of Blackberry Grown in Brazil

HortScience ◽  
2015 ◽  
Vol 50 (8) ◽  
pp. 1234-1240 ◽  
Author(s):  
Ivan dos Santos Pereira ◽  
Luciano Picolotto ◽  
Michél Aldrighi Gonçalves ◽  
Gerson Kleinick Vignolo ◽  
Luis Eduardo Corrêa Antunes
Keyword(s):  
Vegetative Growth ◽  
Optimal Growth ◽  
Nutrient Content ◽  
Leaf Nitrogen ◽  
Linear Increase ◽  
Growth And Yield ◽  
Yield Potential ◽  
Mineral Nutrient ◽  
Potassium Fertilization ◽  
K Fertilization

The objective of this study was to evaluate the floricane leaf nutrient content, vegetative growth, and yield of two blackberry (Rubus spp.) cultivars (Tupy and Xavante), in response to rate of potassium (K) fertilization (0.0, 2.1, 4.2, 6.2, or 8.3 g/plant of K). The research was conducted in a region of low chill (342 chill hours) in southern Brazil (lat. 31°40′ 46.98 S, long. 52°26′ 4.36 W), and soil with pH 5.9, organic matter (OM) 1.1% and K 58.0 g·m−3. In 2009, only calcium (Ca) and magnesium (Mg) leaf concentration were affected by K application, and leaf K level was considered below normal for blackberry in Brazil. In 2010 and 2011, leaf K of blackberry in Brazil increased linearly in both cultivars with an increase in applied K. However, leaf K of blackberry in Brazil only reached its recommended levels for optimal growth in 2010 with the application of 2.1 and 8.3 g/plant of K for ‘Tupy’ and ‘Xavante’, respectively. In 2011, an antagonistic relationship was seen between leaf nitrogen (N)/K and K/Ca and K/Mg ratios with increasing K rates, where increasing K rates were accompanied by a linear decrease in the N/K ratio and a linear increase in the K/Ca and K/Mg ratios. Micronutrients evaluated showed no significant response to applied rates of K. A decrease in floricane leaf concentration of phosphorus (P), iron (Fe), manganese (Mn), and zinc (Zn) was also observed over years of the study. Potassium fertilization rates influenced the vegetative growth of blackberries. ‘Tupy’ showed increased cane density and pruning weights with increased rates of K application up to 8.3 g/plant, whereas cane density was optimized in ‘Xavante’ at 4.2 g/plant. The fruit yield of ‘Tupy’ and ‘Xavante’ increased linearly with K application per plant in all three years, indicating that K fertilization may be limiting the yield potential of these cultivars. These results suggest that the current K fertilizer recommendations may need to be increased for optimal production in Brazil.

scholarly journals Evaluation of Lettuce (Lactuca sativa L.) Production under Hydroponic System: Nutrient Solution Derived from Fish Waste vs. Inorganic Nutrient Solution

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 292
Author(s):  
Zienab F. R. Ahmed ◽  
Alghazal K. H. Alnuaimi ◽  
Amira Askri ◽  
Nikolaos Tzortzakis
Keyword(s):  
Nutrient Solution ◽  
Organic Liquid ◽  
Growth Yield ◽  
Optimal Growth ◽  
Nutrient Content ◽  
Growth And Yield ◽  
Vegetable Production ◽  
Fish Waste ◽  
Hydroponic System ◽  
Fresh Products

Organic fresh products are appreciated and are gaining a good reputation regarding human health and environmental concerns. Despite the fact that hydroponics are commonly used in vegetable production, growers are looking for sustainable cultivation systems. Therefore, the objective of this study was to investigate the effect of using an organic-based nutrient solution (NS) derived from fish waste in a hydroponic system on the vegetative growth and production of lettuce compared to a conventional inorganic NS. Plant growth, yield, physiological and nutrient content parameters were determined. The results revealed that the overall growth and fresh biomass of the organic NS grown lettuce were relatively lower than those of the inorganic NS. Stomata density was significantly higher in inorganic grown lettuce compared to the organic one. However, the total chlorophyll, carotene, phenolic compounds, and flavonoid contents, as well as antioxidant activity were significantly higher in lettuce grown in organic NS compared to the inorganic one. Leaf nutrient content at harvest was significantly impacted by the type of used fertilizer. Based on these findings, in hydroponic system, organic liquid fertilizer derived from fish waste (as an alternative NS source) requires further improvements to achieve optimal growth and yield comparable to that of conventional inorganic NS.

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