scholarly journals Morphological and nutritional evaluation of ‘caraíba’ seedlings in different substrates using domestic sewage effluent for fertirrigation

DYNA ◽  
2020 ◽  
Vol 87 (214) ◽  
pp. 85-92
Author(s):  
Raimundo Fernandes de Brito ◽  
Miguel Ferreira Neto ◽  
Jonath Werissimo Da Silva Gomes ◽  
Ana Luíza Lima Ferreira ◽  
Nildo Da Silva Dias ◽  
...  

In this study, we evaluated the effects of fertigation with domestic sewage effluent and different substrates on the growth of Caraíba seedlings (Tabebuia aurea Benth). The experiment was accomplished in a greenhouse in Mossoró, RN. Five irrigation solutions (100% of water supply - WS, 100% of domestic sewage effluent – DS and dilutions of 75% DS + 25% WS, 50% DS + 50% WS e 25% DS + 75% WS) were tested and two substrates (75% soil + 25% bovine manure and 75% soil + 25% coconut fiber) using completely randomized design in subdivided plots with three replicates per treatment. Growth and development parameters were measured at 30, 60, 90, and 150 days after cultivation. The variables shoot height, collar diameter, height/diameter ratio, dry matter of root, shoot and total (root and shoot), shoot/root ratio, Dickson quality index, and nutritional evaluation of nitrogen, phosphorus, potassium and calcium were determinate. We verified that the use of domestic sewage increased growth and quality of caraíba seedlings, besides promoting nutrient accumulation in the plants grown in substrate of bovine manure plus soil with 100% application of domestic sewage in the fertigation.

2017 ◽  
Vol 39 (4) ◽  
pp. 363-373 ◽  
Author(s):  
Jaciara de Souza Bispo ◽  
Danielle Carolina Campos da Costa ◽  
Samara Elizabeth Vieira Gomes ◽  
Gilmara Moreira de Oliveira ◽  
Janete Rodrigues Matias ◽  
...  

Abstract: Angico is a species found in several environments in Brazil, with several applications. It is used in the timber industry and mainly in folk medicine. In order to verify a variation in the biometric characteristics and the quality of seeds from different mother-plants in different harvesting years, the following variables were studied: moisture content, diameter, density, electrical conductivity, fresh and dry matter of seedlings, germination percentage and kinetics, in a completely randomized design with a 2x3 factorial arrangement (lots x size). The obtained results showed that angico seeds from different lots showed different physiological quality, possibly due to the climate variations to which mother-plants were submitted in the different years. Seed size directly interferes with seedling growth under both controlled and greenhouse conditions, and it can be used as a vigor indicator for angico seeds.


Author(s):  
Lourenço M. C. Branco ◽  
Claudivan F. de Lacerda ◽  
Albanise B. Marinho ◽  
Carlos H. C. de Sousa ◽  
Amanda S. F. Calvet ◽  
...  

ABSTRACT The objective of this study was to evaluate the influence of irrigation with brackish water on the production of bamboo seedlings (Bambusa vulgaris). The experiment was carried out at the Fazenda Experimental Piroás, in the municipality of Redenção, CE, Brazil (4° 14’ 53” S, 38° 45’ 10” W, and altitude of 230 m), in a completely randomized design with five treatments and six repetitions. The treatments consisted of five irrigation water electrical conductivity (ECw): 0.5 (control); 1.5; 2.5; 3.5 and 4.5 dS m-1. At 120 days after the beginning of the application of the treatments the leaf gas exchange, relative chlorophyll index (RCI), plant height (H), shoot dry matter (SDM), H/SDM ratio, and the concentrations of Na+ and K+ in stems and leaves were evaluated. Salt tolerance indexes were calculated based on SDM, H, photosynthesis rate and RCI. The increase in the ECw reduced leaf gas exchange, and the reduction in the photosynthesis rate was caused by stomatal and non-stomatal effects. The salinity affected negatively the growth and quality of bamboo seedlings, with the greatest effects being with ECw equal to or greater than 2.5 dS m-1. Bamboo seedlings present Na+ retention in the stems and low Na+/K+ ratio in the leaves. Bamboo seedlings are tolerant to salinity up to 1.5 dS m-1, indicating that waters with this salinity can be used for seedling production of this species, without loss of growth and quality.


Author(s):  
Tatiane S. Jeromini ◽  
Ana S. V. Barbosa ◽  
Givanildo Z. da Silva ◽  
Cibele C. Martins

ABSTRACT Plukenetia volubilis is a species native to the Amazonia and has economic potential due to the high contents of polyunsaturated fatty acids and vitamins of the seeds; however, information about production of seedlings in nursery is scarce. Factors that contribute to fast emergence and generation of vigorous seedlings are desirable for plant production in the nursery. Therefore, this study aimed to identify the most favorable substrate and seed position for the production of P. volubilis seedlings. The seeds were sown in the following four positions: hilum facing up, hilum facing down, seed lying on its cotyledon suture, and seed lying flat on one of its cotyledon faces. The substrates were sand, vermiculite and commercial substrate. Treatments were distributed according to a completely randomized design in a 4 × 3 factorial arrangement (seed position and substrate) with three replicates of 25 seeds each. The following variables were evaluated: emergence percentage; first count of seedlings; number, width and length of leaves; plant height; stem diameter; dry matter of shoots and roots. It was concluded that the production of P. volubilis seedlings is not affected by either substrate or seed position at sowing. The substrates most favorable to the quality of P. volubilis seedlings were the commercial substrate and vermiculite, always for the positions of seed lying on its cotyledon suture, with faces parallel to tube walls, and seed lying flat on one of its faces.


2015 ◽  
Vol 45 (2) ◽  
pp. 200-205 ◽  
Author(s):  
Jucilayne Fernandes Vieira ◽  
Sandro de Oliveira ◽  
Zarela Casas Navarro Zanatta ◽  
Elisa Souza Lemes ◽  
Francisco Amaral Villela ◽  
...  

The objective of this study was to evaluate the physiological and sanitary quality of seeds of rocket; the research was done at the Laboratory of Seed Analysis and greenhouse of the Department of Plant Science, Federal University of Pelotas (UFPel). Four lots of the cultivar "Antonella'' were tested for following features: initial and final moisture content, germination rate, first count of germination, accelerated aging with saline solution, dry matter contents, seedling shoot and root length, emergence speed index, emergence of seedlings in substrate, electrical conductivity and sanitary condition. A completely randomized design with four replications was used for all tests done and means were compared by Tukey test (P≤0.05). For all tests performed it was concluded that despite changes in the ranking of the best lots, there was agreement regarding the indication of the inferiority of the lot 3 in all tests and it was also observed that the incidence of fungi associated with seeds of rocket interfere with the physiological quality of the lots.


2021 ◽  
Vol 14 (12) ◽  
Author(s):  
Cleverson Agueiro de Carvalho ◽  
Reginaldo Almeida Andrade ◽  
Felippe Coelho de Souza ◽  
Rychaellen Silva de Brito ◽  
Davair Lopes Teixeira Junior ◽  
...  

The production of native species seedlings is essential for the establishment of planted forests or for the recovery of degraded areas. In the nursery stage, the quality of the substrate is crucial for plant growth and development. The objective of this work was to evaluate the influence of alternative substrates, produced from agroforestry residues and decomposed forage grasses, on the biomass input and quality of cedar (Cedrela odorata) seedlings. The experiment was carried out in a greenhouse, located in Rio Branco, Acre, in a completely randomized design, with three treatments, consisting of substrates: brachiaria organic compost (1:1); organic compost combined with crushed brazil nut husk (2:1) and commercial substrate, with ten repetitions. At 90 days after sowing, total, shoot and root dry matter and Dickson's quality index were evaluated. The organic compost from Brachiaria grass favors the accumulation of biomass, improves the quality of cedar seedlings and can replace the commercial substrate in a viable way.


2017 ◽  
Vol 13 (2) ◽  
pp. 41
Author(s):  
Ibnu Sutowo ◽  
Triani Adelina ◽  
Dewi Febrina

Stem and stump of bananas have potential to be used as an alternative for ruminant feed. However, one of the problem is its rapidly decomposing which affect high of water content. The alternative way to solve this matter by using silage. The aim of this study was to determine the nutritional quality of banana waste silage (stems and stump) with the addition of molasses with different levels. The experimental design was a Completely Randomized Design in factorial 3 × 3 with two replications. The first factor (A) was the composition of the substrate, A1: stump 100% + stem 0%, A2: stump 50% + stem 50%, and A3: stump 0% + stem 100%, while the second factor (B) was the levels of molasses (0; 2.5; and 5%). The parameters measured were dry matter, crude protein, crude fiber, extract ether, ash and BETN. The results showed that the composition of the substrate has significant effect (P<0.05) increased content of dry matter, crude protein, crude fiber, BETN, but did not significant (P>0.05) on extract ether and ash content. There was an interaction (P<0.05) between the substrate composition and the addition of molasses on the content of the ash. The best composition for increasing the nutrient content was stump 100% + stemps 0%. It is conclude that the compostion of stump and stemps may affect the nutrient quality of silage.


2021 ◽  
Vol 11 (1) ◽  
pp. 475-482
Author(s):  
Alberto Gilmer Arias-Arredondo ◽  
◽  
César Enrique Pantoja-Aliaga ◽  
Juancarlos Alejandro Cruz Luis ◽  
Alfonso Atanacio Carvajal ◽  
...  

The study was carried out in the central highlands of Peru at 3,900 meters above sea level, in the Casaracra experimental center of the Daniel Alcides Carrión National University, where the objective was to determine and analyze the forage yield and nutritional quality of the associated grasses in different density is sowing. In forage production, the values of green matter and dry matter and the percentage of dry matter were determined; in nutritional quality, the nutritional variables% PT, %NDF, %FDA, % Ca and% P were analyzed. a completely randomized design was used. The results for forage yield for treatment 1 in MV was 3.54 kg / m2 and DM 0.68 kg / m2, in treatment 2 in MV it was 2.61 kg / m2 and DM 0.72 kg / m2, for treatment 3 in MV it was 3.07 kg / m2 and DM 0.98 kg / m2 and finally in treatment 4 the MV was 2.48 kg / m2 and DM 0.93 kg / m2. The nutritional quality for treatments 1, 2, 3 and 4 in% PT (15.56, 15.21, 6.81 and 5.37), % FDN (48.85, 43.82, 43.34 and 41.89), % FDA (28.82, 26.31, 27.27 and 24.43), % Ca (0.86, 0.80, 0.33 and 0.17), %P (0.25, 0.24, 0.18 and 0.07) respectively. Where it is concluded that treatment 4 showed acceptable fiber content in sheep feeding.


Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1747
Author(s):  
Jolanta Franczuk ◽  
Robert Rosa ◽  
Anna Zaniewicz-Bajkowska ◽  
Agnieszka Ginter

The aim of the experiment was to determine the optimal treatment of string bean pods, prolonging their storage life. To this end, the effect of modified atmosphere packaging in Xtend® bags (CH-49) and UV-C radiation on the quality of string beans ‘Unidor’ in cold storage was studied. Observations of the pods and their measurements were made after 14 and 28 days and chemical analyses 14 days after irradiation exposure and storage at 2–4°C. The tests were conducted in laboratory conditions in a completely randomized design. Storing bean pods in Xtend® bags significantly increased the weight and umber of pods fit for consumption, compared to those stored in bulk. However, the content of dry matter, total sugars, and protein in pods stored in Xtend® bags decreased. Irradiation, regardless of the exposure time and the distance of lamps from the surface, contributed to an increase in the weight and number of pods suitable for consumption after 14 and 28 days. After 14 days irradiated pods contained more dry matter, L-ascorbic acid, polyphenols and flavonoids. After UV-C irradiation for 600 seconds with lamps at a height of 40 cm pods in Xtend® bags responded with the most favorable protein content.


2020 ◽  
Vol 7 (2) ◽  
pp. 127
Author(s):  
Firman Nasiu ◽  
Wa Laili Salido ◽  
Andi Murlina Tasse ◽  
Syamsuddin Syamsuddin ◽  
Hairil A. Hadini ◽  
...  

ABSTRAKPenelitian ini bertujuan untuk melakukan evaluasi kecernaan in vitro bahan kering dan bahan organik kulit singkong yang difermentasi menggunakan jamur Aspergillus niger dan EM-4 sehingga dapat memberikan informasi tambahan mengenai kualitas kulit siongkong yang difermentasi maupun tanpa fermentasi.  Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) yang terdiri atas 4 perlakuan dan 4 ulangan.  Perlakuan yang diberikan terhadap kulit singkong adalah P1 (tanpa fermentasi), P2 (fermentasi dengan Aspergillus niger), P3 (fermentasi dengan EM-4), P4 (fermentasi dengan kombinasi A. niger dan EM-4).  Evaluasi kecernaan in vitro ini dilakukan dengan menggunakan metode Tilley and Terry.  Hasil penelitian menunjukkan bahwa penambahan jamur A. niger dan EM-4 dalam proses fermentasi kulit singkong dapat meningkatkan kecernaan bahan kering dan bahan kering kulit singkong secara signifikan dimana hasil terbaik diperoleh pada penambahan kombinas A. niger dan EM-4.Kata kunci: Aspergillus niger, bahan kering, bahan organik, EM-4, kecernaan in vitroABSTRACTThe aim of this study was to evaluate the in vitro digestibility of dry matter and organic matter of fermented cassava peel using Aspergillus niger and EM-4 inoculant to provide additional information about the quality of fermented and unfermented cassava peel. The study design used was a completely randomized design (CRD) consisting of 4 treatments and 4 replications. The treatments were P1 (without fermentation), P2 (fermented with Aspergillus niger), P3 (fermented with EM-4), P4 (fermented with a combination of A. niger and EM-4). This in vitro digestibility evaluation was conducted by using the Tilley and Terry method. The results showed that the addition of A. niger fungi and EM-4 in the fermentation process of cassava peel could significantly improve the digestibility of dry matter and dry matter of cassava peel where the best results were obtained on the addition of A. niger and EM-4 combinations.Keywords: Aspergillus niger, dry matter, EM-4, in vitro digestibility, organic matter


Author(s):  
Md. Zakirul Islam ◽  
Kannika Wongpanit ◽  
Mohammad Ashiqul Islam ◽  
Gopal Saha ◽  
Md. Harun-ur-Rashid

This experiment was aimed to investigate the production characteristics and nutritive quality of Ruzi grass by varying levels of organic and inorganic fertilizer viz. cow dung (CD) and urea fertilizer (UF), respectively. The treatments were arranged into a factorial design and grouped according to a completely randomized design with three replications. Three doses of CD (0; 5; and 10 t/ha) were applied at sowing and four UF doses were applied as top dressing (0, 25, 50 and 100 kg/ha). The application of CD and UF have a positive effect on the length of leaves (p=0.00 and p=0.02) but their interactions are not significantly different (p=0.12). The effect of CD, UF and their interaction significantly increased the number of leaves (p=0.00), the number of tillers (p=0.00) and dry matter yield (p=0.00). There were no significant effect of CD and interaction on the leaf/stem ratio (p=0.17 and p=0.23, respectively) but UF slightly increased the ratio (p=0.00), CP% (p£0.00), NDF% (p£0.00) and ADF% (p£0.00). The best combination of fertilizer could be noted at 50 kg/ha UF and 10 t/ha CD to obtain better results. It might recommend that better fertilizer management can improve productivity as well as the nutritional quality of Ruzi grass.


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