scholarly journals “Basura verde” como componente de sustrato en el cultivo de Begonia spp. en potes

2018 ◽  
Vol 29 (1) ◽  
pp. 221
Author(s):  
Carlos Manuel Acosta Durán ◽  
Denisse Acosta-Peñaloza

The forest soil is the main substrate in the production of ornamental plants in pots, but its unlimited extraction causes a negative environmental impact. One alternative for replacing the forest soil is the garden waste, also called “green waste”. The aim of this study was to characterize and determine the optimal dose inclusion of green waste in order to use it as substrate component for begonia (Begonia spp.) container cultivation. This experiment was performed in Morelos State, Mexico, in 2015. Physical and chemical laboratory analysis, as well as an agronomic evaluation was performed. Different proportions (100%, 75%, 50%, and 25%) of green waste and forest soil, supplemented by a general substrate (coconut fiber and sawdust, 50/50, v/v) were mixed. A completely randomized design of eight treatments with eight replications was used. Green waste has similar physicochemical characteristics to forest soil. In the growth and development of begonia plants, the results were statistically equal, between treatments of 100% green waste use and forest soil use in six of the sixteen variables studied, and was superior to other treatments, in one of them. As a result of this study, we reached the following conclusion: that green waste is a material that has the necessary physicochemical characteristics for the Begonia spp. container cultivation, and that if its used as a substrate, it could replace the forest soil.

Author(s):  
Ayi Yustiati ◽  
Syakirah Imtinan Zurwana ◽  
Achmad Rizal ◽  
Yuli Andriani

The purpose of this research is to determine the optimal dose of the addition of red spinach powder to artificial feed on the brightness of clown loach. This research was conducted at Aquaculture Laboratory Building 4 Faculty of Fisheries and Marine Sciences of Universitas Padjadjaran from April to May 2020. This research method is experimental with a Completely Randomized Design consisting of four treatments and three replications. The red spinach powder addition treatment used 0%, 2%, 4%, and 6% of the feed amount. The parameters observed are color value as primary data by using Toca Color Finder, while the growth, survival rate, and water quality as support data. Color assessment results were analyzed using the Kruskal-Wallis test, if there were significant differences, Z test would be performed. Growth data and survival rates were analyzed using Analysis of Variance (ANOVA). Because the F test results were not significantly different, the Duncan test was not carried out. The results showed that the addition of  6% red spinach powder is the best treatment with an increased color brightness value of 5,63.


2021 ◽  
Vol 332 ◽  
pp. 01003
Author(s):  
Wayuni Rahmawany ◽  
Sentosa Ginting

The purpose of this study was to determine the effect of the addition of tofu dregs flour on the physicochemical characteristics of shake flower cookies. The analysis was carried out using a non-factorial completely randomized design with a ratio of tofu pulp flour: rice flour, namely 100% rice flour (control), 10%: 90%, 20%: 80%, 30%: 70%, 40%: 60%, 50 % : 50%. Shake flower cookies significantly affects moisture content, crude fiber content, color hedonic value, taste, aroma, texture, and general acceptance. The shake flower cookies with the best treatment was found in the ratio of tofu dregs flour: rice flour (10%: 90%) and a total dietary fiber test was carried out.


2021 ◽  
Vol 42 (5) ◽  
pp. 2639-2650
Author(s):  
Verônica Pellizzaro Moresco ◽  
◽  
Mônica Satie Omura ◽  
Jean Carlo Baudraz de Paula ◽  
Felipe Favoretto Furlan ◽  
...  

Bromeliads have been gaining ground in the economic scenario due mainly to their use as ornamental plants. Bromeliads of the genus Dyckia exhibit different morphologies, and therefore, have relevance in this market. However, some species are threatened due to the extraction of plants from their natural environments. Many of these species are endemic and native to Brazil and there are few studies on their seed physiology; hence, expansion of research into this topic is essential. An alternative for the preservation of such plants is the production of seedlings using seeds. To this end, the objective of this work was to evaluate the physiological potential of seeds of Dyckia brevifolia, Dyckia beateae, and Dyckia excelsa at different temperatures, and determine the number of days to carry out the tests. A completely randomized design was adopted, with three species of Dyckia, analyzed separately, and four temperatures (20, 25, 30, and 35 °C). The following were evaluated: first germination count, germination, germination speed index, length of seedling, and seedling dry weight. The data were analyzed using the Sisvar software for normality and homogeneity, and when the assumptions were met, they were subjected to analysis of variance using the F test (p < 0.05) and the means were compared using the Tukey test at 5% probability. Seeds of D. excelsa emit the radicle more quickly at 20 and 35 °C; however, temperatures of 25 and 30 °C provide better conditions for seedling growth and development. The greatest vigor of D. brevifolia seeds is observed at temperatures of 30 and 35 °C. Seeds of D. beateae emit the radicle more quickly at 20 °C, and the largest seedlings are observed at 35 °C. The first germination count of D. brevifolia, D. beateae, and D. excelsa should be evaluated on the third day after sowing. The germination evaluations for D. excelsa and D. beateae should be carried out on the ninth day after sowing, and those for D. brevifolia on the sixth day after sowing.


2019 ◽  
Vol 2 (2) ◽  
pp. 46-53
Author(s):  
Rahayu Suseno ◽  
Bangun Naomi Marcelina ◽  
Silvi Leila Rahmi

Abstract— This research was conducted in two stages,  first stage, looking for the best concentration of natural sweetener with organoleptic. Second stage analyzed the physicochemical characteristics using the best concentration of first stage. This research was carried out using a Completely Randomized Design, with various natural sweeteners consisting 6 levels, namely: stevia sweetener (0.05%, 0.75%, 0.10%), sorghum sugar (10%, 15%, 20%), corn sugar (10%, 15%, 20%), coconut sugar (14%, 15%, 16%), palm sugar (7.5%, 10%, 12.5%), and honey (15%, 25%, 35%) and 3 replications so that 18 experimental units. The addition of various types of natural sweeteners significantly affected the hedonic test (taste and overall acceptance), water content, pH, total dissolved solids, total sugar, and color but did not significantly affect the hedonic quality test (texture), hedonic test (texture and color), crude fiber content, syneresis and gel hardness. Keywords— Agar, Natural Sweeteners, Rice Bran  


2019 ◽  
Vol 37 ◽  
Author(s):  
L. TROPALDI ◽  
I.P.F.S. BRITO ◽  
R.C. DIAS ◽  
M.L.B. TRINDADE ◽  
C.A. CARBONARI ◽  
...  

ABSTRACT: Maintenance of straw on the soil surface in sugarcane production areas can influence weed occurrence and herbicide dynamics. After application, considerable losses of clomazone can occur as a result of its physicochemical characteristics. For this reason, novel formulations have been developed. In addition to the conventional formulation, microencapsulated formulations are currently available. Thus, the aim of this study was to observe and compare the effect of clomazone formulations under different application conditions. For this purpose, the experiment was carried with 12 treatments in a completely randomized design, with four replications, using clomazone formulations (1,200 g a.i. ha-1), on soils with different moisture levels, in the presence and absence of sugarcane straw, followed or not by rainfall simulation. The treatments were compared by observation of number of emerged plants and phytotoxicity at 7 and 14 DAA, as well shoot dry matter at 14 DAA for Ipomoea nil, Urochloa decumbens and Panicum maximum. In general, the microencapsulated formulation presented a better performance under the less suitable application conditions when compared to the conventional one. However, for the other conditions, both formulations had a similar performance.


2019 ◽  
Vol 32 (2) ◽  
pp. 566-574
Author(s):  
GÉRSON DO NASCIMENTO COSTA ◽  
BRUNA MARIA PRADO DA SILVA ◽  
ÂNGELA CELIS DE ALMEIDA LOPES ◽  
LEONARDO CASTELO BRANCO CARVALHO ◽  
REGINA LUCIA FERREIRA GOMES

ABSTRACT Ornamental plants are all plants grown for their beauty and are commonly used in gardening and landscaping. The colorful fruits and varied foliage colors that typify ornamental peppers provide a vibrant garden display that rivals other ornamental plants. This study aimed to evaluate the potential ornamental use of eight pepper accessions, Capsicum annuum, from the Capsicum Germplasm Bank of the Universidade Federal do Piauí, using qualitative and quantitative descriptors. The experiment was carried out in a greenhouse at the Department of Plant Science, Centre of Agricultural Sciences of Universidade Federal do Piauí, where the accessions were evaluated through a completely randomized design, with eight replicates, one plant per plot, and characterized based on 35 descriptors, 23 of which were qualitative and 12 quantitative. Data on quantitative descriptors were submitted to univariate analysis of variance, followed by Scott-Knott clustering test at 5% probability. Data on qualitative multicategorical descriptors were considered based on observations of statistical mode. The eight accessions evaluated have ornamental potential and are within the standards established by the Instituto Brasileiro de Floricultura. The accessions BAGC 98, 100, 203, 207, 224, and 236 accessions are suitable for cultivation in pots, while BAGC 220 is suitable for garden cultivation. BAGC 199 is the most promising accession because it supports all quality criteria required for size, foliage, flowers, and fruit proposed by the Veiling Holambra Cooperative.


2018 ◽  
Vol 39 (2) ◽  
pp. 771 ◽  
Author(s):  
Américo Fróes Garcez Neto ◽  
Janielen Da Silva ◽  
Eduardo Michelon do Nascimento ◽  
Jean Carlos Steinmacher Lourenço ◽  
Sergio Rodrigo Fernandes

This study was carried out to evaluate the white mulberry tree (Morus alba) as a feedstuff for ruminants in natura, as hay and as silage. A completely randomized design with five treatments and three replicates was used, where the treatments were five types of mulberry forage: (1) in natura after cutting; (2) hay; (3) silage of mulberry in natura; (4) silage of wilted mulberry and (5) silage of mulberry with ground ear corn. The content of crude protein (CP) did not differ between the silages (average of 19.03% of dry matter - DM). The CP content of the silages was higher than in mulberry hay (15.26% DM) and similar to mulberry after cutting (17.00% DM). The neutral detergent fiber (NDF) content did not differ between the silages (34.84% DM on average), but the NDF of silage with ear corn was lower than the mulberry hay (33.77 vs. 39.36% DM). The acid detergent fiber (ADF) content did not differ between silages and mulberry hay (30.66% DM on average). The lowest value for ADF was observed in the mulberry after cutting (26.06% DM). The aerobic stability of the silages was not broken during the seven days of aerobic exposure. The pH of silage of mulberry in natura was similar to silage of wilted mulberry (4.80 on average), while the silage with ear corn showed a lower pH value (4.58) compared to the other silages. The buffering capacity (BC) did not differ between the silage with ear corn and silage of wilted mulberry (84.91 meq 100 g DM-1 on average), while a lower value was observed for silage of mulberry in natura (56.69 meq 100 g DM-1). The highest value for ammonia nitrogen (NH3-N) was demonstrated in the silage of mulberry in natura (13.08% total N), and the lowest values were observed in the silage with ear corn and silage of wilted mulberry (7.49 and 9.58% total N, respectively). Silage with 11% of ground ear corn is the best alternative use of white mulberry tree as forage for ruminant feeding, since this form presented low fiber content and a fermentative pattern suitable for the process of forage conservation.


2014 ◽  
Vol 1 (1) ◽  
pp. 87
Author(s):  
Andhika Agus Setyawan ◽  
Sukanto Sukanto ◽  
Endang Widyastuti

The aim of this study were to determine the effect of fermented agricultural wastes feeding with supplement of water hyacinth and MEP+ probiotic towards the increasing population of intestinal Lactid Acid Bacteria (LAB) in Tilapia and to know the highest population of lactic acid bacteria after fermented agricultural waste feeding with water hyacinth supplements and MEP+ probiotic. Independent variable in this study was fermented feed with the addition of different water hyacinth and MEP+ probiotics. The experimental study was continued using completely randomized design (CRD). The dependent variable in this study was the number density of Lactobacillus bacteria in the gut of Tilapia. The main parameters measured were the number of LAB. Proponent parameters were namely Tilapia weight gain, physical and chemical conditions of the water. The results showed that feeding fermentative effected in increasing the population of lactic acid bacteria in the gut of Tilapia. Fermentative feed supplement agricultural waste with water hyacinth as much as 10% and MEP+ probiotic was the best treatment with LAB population density in Tilapia intestine with the average of 5.85 x 106 CFU /g.


2021 ◽  
Vol 18 (1) ◽  
pp. 37
Author(s):  
Ita Yustina ◽  
Ana Nurhasanah ◽  
SS. Antarlina

<p class="Abstrak"><span lang="EN-GB">By processing sorghum grains into flour, the use of sorghum grains to support food diversification can be made more varied. The research objective was to determine the physical and chemical properties of sorghum muffins and changes of physical properties of sorghum muffins during storage. The research uses a completely randomized design with two factor, grain soaking duration (hours) and ratio of concentration of whole sorghum flours with gluten flour (%) and consists of nine treatments combination. The result shows that treatment has a significant effect on the power expansion, degree of brightness, fat, and preference for organoleptic properties. The best treatment was 24-hours of soaking, 25% whole sorghum flour, 75% gluten flour that produces expanded power at 138,83%, degree of brightness (L) at 67.03, redness (a) at +4.33, yellowness (b) at +27.37, water content of 12.59%, protein content of 6.95%, fat content of 2.46%, score of color at 3.20, texture score at 3.13, aroma score at 3.16, taste score at 3.24, and for overall acceptance at 3.53 (like). Changes of physical properties of sorghum muffins during storage for 3 days can be explained with the linear equation. For all parameter (weight loss, volume loss, brightness loss), the value of constant a in the equation of sorghum muffin was lower than control muffin that indicated quality loss of sorghum muffins is higher than control muffin. Increasing the concentration of sorghum flour resulted a decrease in the quality of the muffins. The soaking treatment of the seeds in making sorghum flour can maintain the quality of the muffin.</span></p>


2020 ◽  
Vol 2 (1) ◽  
pp. 46-50
Author(s):  
Purnama Dewi Rohana ◽  
Sartini Sartini ◽  
Abdul Karim

Sunflowers ((Helianthus annuus L) is a plant that has the ability to absorb metals in polluted soil or environment. This study aims to determine the ability of sunflower plants to absorb lead (Pb) in the soil. This research method use a Completely Randomized Design (CRD). Pb metal analysis was carried out by testing the lrvels using the Atomic Absorption Spectrophotometry (AAS) tool in the Chemical Laboratory (LABKES). The results showed that the highest absorption of Pb contamination in P2L2 treatment (2.0 ppm) as much as 5.04 ppm and the lowest absorption of metals in the treatment P1L1 (0.3 ppm) yielded as much as 0.52 ppm Pb metal content. From the results of these studies it can be concluded that sunflower plants can be used as phytoremediation pf Pb metal.


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