scholarly journals VIABILITY OF THE MINI-CUTTING TECHNIQUE IN THE PRODUCTION OF Drimys brasiliensis Miers SEEDLINGS

FLORESTA ◽  
2020 ◽  
Vol 50 (2) ◽  
pp. 1195
Author(s):  
Renata De Almeida Maggioni ◽  
Emilio Romanini Netto ◽  
Leandro Porto Latoh ◽  
Henrique Soares Koehler ◽  
Katia Christina Zuffellato-Ribas

Drimys brasiliensis, popularly known as cataia or casca-d'anta, is a tree species native to the Atlantic Forest and belonging to the family Winteraceae. Due to its seeds have dormancy due to embryonic immaturity, the present work aimed to evaluate the viability of the mini-cutting technique in D. brasiliensis in different seasons of collection of the propagules. Mini-cuttings from seedlings sprouts previously produced by conventional cutting were collected at six different times (December/2015, February/2016, April/2016, June/2016, August/2016 and October/2016), made 6-8 cm long, with bevel cut at the base and rectum at the apex, keeping two leaves with their area halved. The experiment was carried out in a completely randomized design with 4 replicates and 14 mini-cuttings per experimental unit. The mini-cuttings were planted in tubes with substrate containing vermiculite and carbonized rice husk (1:1) and kept in a heated greenhouse. After 120 days, the percentage of rooted mini-cuttings, number of roots per mini-cuttings, length of the three largest roots by mini-cuttings, percentage of mini-cuttings with callus, live, dead, with shoots and leaves that maintained their original leaves were evaluated. Rooting percentages of mini-cuttings were greater than 75% regardless of the season of the year in which the propagules were collected. The adventitious root formation of D. brasiliensis occurs indirectly, from the callus tissue formed at the base of the mini-cuttings. The mini-cuttings technique is recommended for the production of seedlings of the species, at any seasons of the year.

Author(s):  
Katherine D Vande Pol ◽  
Andres F Tolosa ◽  
Caleb M Shull ◽  
Catherine B Brown ◽  
Stephan A S Alencar ◽  
...  

Abstract Piglets experience a decline in body temperature immediately after birth, and both drying and warming piglets at birth reduces this. However, these interventions may have less effective at higher farrowing room temperatures. This study was carried out at a commercial facility to compare the effect of drying and/or warming piglets at birth on postnatal rectal temperature (RT) under relatively warm farrowing room temperatures (26.6 ± 2.09°C). Forty-five sows/litters were used in a completely randomized design to compare three Intervention Treatments (applied at birth): Control (no treatment); Warming (piglets placed in a plastic box under a heat lamp for 30 min); Drying+Warming (piglets dried with desiccant and warmed as above). Temperatures in the warming boxes over the study period averaged 37.7 ± 2.75°C. At birth, piglets were weighed; RT temperature was measured at 0, 10, 20, 30, 45, 60, 120, and 1440 min after birth. Blood samples were collected at 24 h after birth from a subsample of one piglet from each birth weight quartile within each litter to measure plasma immunocrit concentration. Data were analyzed using PROC MIXED of SAS with litter as the experimental unit; and piglet a subsample of litter. The model for analysis of piglet rectal temperature included fixed effects of treatment, measurement time (repeated measure), the interaction, and the random effect of sow. Compared to the Control, piglet RT were higher (P ≤ 0.05) for the Warming treatment between 10 and 60 min, and higher (P ≤ 0.05) for the Drying+Warming treatment between 10 and 120 min after birth. Rectal temperatures were higher (P ≤ 0.05) for the Drying+Warming than the Warming treatment between 20 and 120 min. Responses to drying and/or warming were greater for low birth weight piglets (< 1.0 kg) than heavier littermates, but were generally less than observed in previous experiments with similar treatments carried out under cooler temperatures. Piglet immunocrit values were lower (P ≤ 0.05) for the Drying+Warming treatment compared to the other treatments, which were similar (P > 0.05). Immunocrit values tended (P = 0.10) to be lower for light (< 1.0 kg) compared to heavier birth weight piglets. In conclusion, drying and warming piglets at birth was more effective for reducing piglet RT decline after birth than warming alone, though the effect was less than observed in previous studies carried out under cooler farrowing room temperatures.


2013 ◽  
Vol 14 (2) ◽  
pp. 308-321
Author(s):  
Lina Maria Peñuela Sierra ◽  
Ivan Moreira ◽  
Antonio Claudio Furlan ◽  
Paulo Levi de Oliveira Carvalho ◽  
Ângela Rocio Poveda Parra ◽  
...  

Two experiments were carried out to determine the bioavailability of phosphorus in two spray-dried yeasts - sugarcane yeast (SCY), and sugarcane yeast + brewer's yeast (SCBY) - in starting pigs, by comparing different methods (Apparent Digestibility Coefficient of Phosphorus - ADCP; True Digestibility Coefficient of Phosphorus - TDCP; slope ratio; and standard curve). In experiment I, a digestibility assay were carried out using 30 cross breed pig with initial weigh of 22.69 ± 4.24kg, allotted in a completely randomized design. The mean ADCP and TDCP values were 62.68 and 64.15% for SCY and 77.01 and 79.33% for SCBY. ADCP and TDCP for SCBY were higher (P<0.05) than the values for SCY. In Experiment II, a growth test was conducted, 56 crossbred piglets, were utilized, with initial live weight of 15.11 ± 3.43kg, allotted in a completely randomized design, with seven treatments, four replications, and two pigs per experimental unit. The treatments consisted of a basal diet without supplementation with P and the same diet including supplementation with two levels of P (0.053% and 0.105%) from dicalcium phosphate, SCY and SCBY. The relative bioavailability mean value of 57.23% for SCY and 91.96% for SCBY, corresponding to 0.30% and 0.40% of available phosphorus, respectively.


Revista CERES ◽  
2011 ◽  
Vol 58 (5) ◽  
pp. 645-650 ◽  
Author(s):  
Gilberto Bernardo de Freitas ◽  
Márcio Sousa Rocha ◽  
Ricardo Henrique Silva Santos ◽  
Letícia Monteiro da Silva Freitas ◽  
Leandro de Almeida Resende

The objective of this work was to evaluate the productive performance of broccoli under different top-dressing organic fertilizations. The experiment was conducted under protected cultivation, in a completely randomized design with four replications, with two plants per experimental unit. Broccoli seedlings were produced in a commercial substrate in styrofoam trays. The seedlings were transplanted to plastic pots containing 10.0 L of substrate made up of subsoil and organic compost at the ratio of 3:1 (v/v), respectively, which is equivalent to about 20.0 t ha-1 of organic compost at planting. After seedling establishment, the top-dressing fertilization treatments were applied: gliricidia biomass associated or not with liquid biofertilizer of cattle manure to the soil and bokashi. Two control treatments were established: one with mineral fertilization recommended for the crop and the other without top-dressing fertilization. The broccoli production was evaluated (commercial standard). Plants that received mineral fertilizer were more productive, however, they were not significantly different (p>0.05), by Dunnet test, from the plants fertilized with 2.5 t ha-1 gliricidiabiomass (dry mass) associated with liquid biofertilizer (2.0 L m-2) applied to soil. Top-dressing fertilizations with only gliricidia, at 2.5 and 5.0 t ha-1 of biomass (dry mass), resulted in no significant increase in production of broccoli inflorescence. The use of bokashi in addition to gliricidia biomass and liquid biofertilizer reduced the efficiency of the fertilization compared with plants that received only gliricidia and liquid biofertilizer.


2014 ◽  
Vol 15 (1) ◽  
pp. 221-236 ◽  
Author(s):  
Liliane Maria Piano Gonçalves ◽  
Ivan Moreira ◽  
Paulo Cesar Pozza ◽  
Paulo Levi de Oliveira Carvalho ◽  
Juliana Beatriz Toledo ◽  
...  

Two experiments were carried out to determine the nutritional value and to evaluate the performance and carcass traits in the growing-finishing pigs fed on two types of semipurified glycerin, which were made from vegetable oil (SPGV) and mixed of animal + vegetable oil (SPGM). In the digestibility trial (experiment I) 32 crossbreed barrows were used with initial body weight of 45.08 ± 4.11kg. It were used three levels of inclusion (6, 12 e 18%) of semipurified glycerin (SPGV and SPGM) in the basal diet. The metabolizable energy (ME) value of glycerin were estimated by regression of ME (kcal/kg) intake associated with glycerin vs. glycerin intake (kg). The values of ME (kcal/kg) obtained were: 2,731 for SPGV and 2,210 for SPGM. In experiment II, 72 pigs (30.08 ± 1.65 to 60.58 ± 3.57) in growing and (60.83 ± 2.63 to 93.79 ± 5.72) in finishing phase, were allotted in a completely randomized design in a 2 x 4 + 1 factorial scheme, with two types of semipurified glycerin (SPGV and SPGA), four inclusion levels (4; 8; 12 and 16%), eight experimental unit and a control diet containing no glycerin (0%). All pigs were slaughtered to evaluate the carcass traits. The performance results suggest that it is feasible to use up to 16% of both semipurified glycerins on growing and finishing pigs feeding, without impairing performance and carcass traits.


2012 ◽  
Vol 12 (1) ◽  
pp. 64-70
Author(s):  
Ni Siluh Putu Nuryanti ◽  
Lestari Wibowo ◽  
Abdul Azis

 A research was conducted to increase the virulence of Beauvaria bassiana to the rice bug, L.  acuta, by adding four different substances (materials) to the rice media to grow the fungus. The research was conducted from April to August 2011 at Polinela Laboratory, Bandar Lampung.  To do this a set of experimental unit consisting of five treatments and five replications were arranged in completely randomized design. The  four treatments were media made up of rice (rice based media) each given or added with four different materials such as rice skin powder, corn sugar, grasshopper powder and chitosan powder. The result showed that B. bassiana grown on rice media added with grasshopper powder or rice skin powder were able of causing mortality to the L. acuta as high as 78% and 71%, respectively, meaning that both mortalities were much higher than that of other replication. The virulence values of Beauveria bassiana  grown on those both powder were also higher than that of three others.


2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Maria Cristina Manno ◽  
Luiz Fernando de Souza Rodrigues ◽  
Kedson Raul de Souza Lima ◽  
Monique Valéria de Lima Carvalhal ◽  
Silas Santiago Rodrigues Filho ◽  
...  

ABSTRACT: This study aimed to evaluate behavioral aspects of Santa Inês sheep in pasture in humid tropical climate. In order to do so, nine Santa Inês sheep were kept on pasture, exposed to the climate directly, without shade, for 24 days, with 12 alternate days in each period (dry and raining) in 2015. The behavioral parameters evaluated were: food consumption, standing idleness, lying idle and rumination. Observations occurred from 08:00 A.M. to 05:55 P.M. The experimental was a completely randomized design (CRD) with two treatments (rainy season and dry period), nine replications, one animal per experimental unit. To understand the correlations of the behavioral parameters with the climatic variables, Pearson’s correlation was performed. Approximate average values between the rainy and dry periods for the behavioral variables were observed, but there was a greater intake in the volume of water in the dry period (9.59L/sheep). Also, there were significant differences in the behavior of the animals throughout the day. In the hottest time of the day, at 02:00 P.M., there was standing idle of 25.83min., lying idle of 1.21min., and spent less time-consuming food (27.08min.) in relation to other schedules. We concluded that the sheep had similar behavioral parameters in the rainy and dry periods, but when we observe the times of the days, the behaviors are different. The main activity recorded was grazing, and the variables, temperature and relative humidity of the air influence differently between the seasons, being more marked in the dry period.


2015 ◽  
pp. 4406-4414
Author(s):  
Carina Scherer ◽  
Antonio Furlan ◽  
Ivan Moreira ◽  
Angela Poveda P ◽  
Paulo Carvalho ◽  
...  

Objective. Determine the nutritional values of ground (SCI) or extruded (SCE) canola seed and evaluate its use in the performance of piglets from 15 to 30 kg. Materials and methods. Two experimental diets with canola seed were evaluated in a digestibility trial. We used 15 barrows with an initial weight of 19.79±1.43kg, distributed in a completely randomized design. In the performance, four experimental diets were evaluated consisting of a diet with soybean oil added (RAS), one with the of addition of canola oil (RAC) and two oil-free; one with 11% SCI included and one with 6% SCE (RSCE) included. 40 commercial hybrid piglets were used that had 15.25±1.5kg initial body weight, randomly distributed, in four treatments and five replicates; two animals per experimental unit. Results. The digestible energy values for SCI and SCE were 4.197 kcal/kg and 5.234 kcal/kg, respectively. The extrusion process improved the digestibility coefficients. Piglets fed with RSCI showed less daily weight gain (DWG) and F:G ratio. Conclusion. Results suggest that SCE can be included in diets of piglets from 15 to 30 kg until 6% without negatively affecting performance.Key words: Animal performance, anti-nutritional factors, digestibility, economic viability (Source: AGROVOC).


2020 ◽  
Vol 22 (1) ◽  
pp. 9-15
Author(s):  
Rika Aprilia Fajar Riningrum ◽  
Nadrawati Nadrawati ◽  
Edhie Turmudi

[TESTING THE CONCENTRATION OF FUNGI Beauveria bassiana (Bals.) ON MORTALITY OF POD BORER (Riptortus linearis F.) ON SOYBEAN]. To control pod borer (Riptortus linearis F). on soybean using chemical insecticides can cause pollution to the environment, kill non-targeted insects and evolve pest resistance. The use of entomopathogenic fungus is an environmentally friendly alternative, one of which is Beauveria bassiana. (Bals.). The purpose of this study was to obtain an effective concentration of Beauveria bassiana fungi that can kill the pod borer at the 50% level.  The study was arranged in a Completely Randomized Design (CRD) consisting of 6 levels of fungi and 3 replications, where each experimental unit used 2 polybags.  Each treatment unit used 10 pod borers. The concentration of B. bassiana consisted of 105, 106, 107, 108 and 109 conidia / mL, and without fungi application as a control. The results indicated that the treatment of B. bassiana concentration on R. linearis significantly affected the percentage of mortality and the number of infected R. linearis, but no significant effect on the time of death, number of pods/plants and percentage of the number of damaged soybean pods. The mortality of R. linearis is classified as low, that is, less than 50%.


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Muhammad Irpan ◽  
Hairu Suparto ◽  
Akhmad Rizali

Hiyung's chili is a local chili from Hiyung Village, Tapin, South Kalimantan. Hiyung's chili cultivation begins with a process nursery, nursery is one of the most important plant cultivation processes, which will determine the amount of Hiyung's chili production. This research aims to know the best composition of growing medium mixture, the best dosage compound of NPK fertilizer and the best interactions between the composition of growing medium mixture and the dosage compound of NPK fertilizer for Hiyung's chili nurseries. This research was conducted in Greenhouse the Faculty of Agroecotechnology, Lambung Mangkurat University from July - August 2020. This research use completely randomized design two factor, there are 12 treatments combination and 4 replications, totaling 48 experimental unit. Each experimental unit consists 4 polybags for a total of 192 polybags. The results showed the best composition of growing medium mixture for height of Hiyung's chili, is in the m3 treatment (150 grams of cow manure: 50 grams rice husk). The dosage compound of NPK fertilizer is in the p1 treatment (0.6 gram / plant). The best interactions between the composition of growing medium mixture and the dosage compound of NPK fertilizer for growth of leaf number plant Hiyung's chili is 150 grams of cow manure: 50 grams rice husks and 0.6 gram / plant.


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