scholarly journals CLONAL FORESTRY OF Piptocarpha angustifolia: SURVIVAL AND GROWTH VIGOR IN FIELD CONDITIONS

CERNE ◽  
2017 ◽  
Vol 23 (1) ◽  
pp. 69-74
Author(s):  
Carlos André Stuepp ◽  
Ivar Wendling ◽  
Henrique Soares Koehler ◽  
Katia Christina Zuffellato-Ribas
Keyword(s):  
Native Species ◽  
Field Conditions ◽  
Forest Plantations ◽  
Clonal Forestry ◽  
Base Diameter ◽  
Randomized Design ◽  
Clonal Plantation ◽  
Survival And Growth ◽  
Growth Vigor ◽  
Completely Randomized Design

ABSTRACT Piptocarpha angustifolia is a potential native species for Brazilian forestry. However, a lot of challenges and technical constraints persist, hindering its expansion as a species for forest plantations, among them, the lack of evaluation of their survival and growth in field conditions. Thus, we evaluated the survival and growth vigor of Piptocarpha angustifolia according to two initial heights of mini-cuttings at planting. Plants from mini-cuttings with 20 ± 5 cm and 40 ± 5 cm were planted in field using 3 × 2 m spacing. In these, we evaluated the survival, base diameter and total height during 24 months. The experiment was implemented in a completely randomized design in a split plot model. Plants of 20 ± 5 cm are superior in survival to 40 ± 5 cm ones. The growth in height and diameter remained constant up to 24 months, reaching 64.1 cm and 13.5 mm, independently of the plants expedition time. In general, the establishment of clonal plantation of Piptocarpha angustifolia was limited by the attack of pests, mainly cutting ants. For this reason, plantation of this species must take into account the possibility of greater pest control.

scholarly journals ARAUCARIA CLONAL FORESTRY: TYPES OF CUTTINGS AND MOTHER TREE SEX IN FIELD SURVIVAL AND GROWTH

CERNE ◽  
2016 ◽  
Vol 22 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Ivar Wendling ◽  
Carlos André Stuepp ◽  
Katia Christina Zuffellato-Ribas
Keyword(s):  
Native Species ◽  
Clonal Forestry ◽  
Wood Production ◽  
Male And Female ◽  
Breast Height ◽  
Randomized Design ◽  
Different Types ◽  
Survival And Growth ◽  
Completely Randomized Design ◽  
Potential Use

ABSTRACT Araucaria angustifolia (Bert.) O Kuntze (Paraná pine or Araucaria) is a potential forestry native species for Brazilian silviculture. However, a number of challenges and technical restraints persist, hindering its silvicultural expansion, among which are the lack of cloning technologies of superior genetic materials and their assessment under field conditions. Thus, we evaluated the potential use of araucaria plants derived from cuttings and seeds for timber production, by assessing field survival, growth and strobilus production using cuttings from male and female plants, collected from different positions, compared with those produced by sexual reproduction. Clones of male and female trees from different types of cuttings and seedlings were planted in 3 x 3 m spacing. The experiment was conducted in a completely randomized design of one tree plot with three treatments. Female clones and apical cuttings showed higher growth in diameter at breast height (6.4 cm) and total height (3.6 m) 74 months after planting, followed by seedlings and other clones, with similar results. We conclude that cuttings technique is potential for araucaria propagation for wood production purposes, and it is favored by the use of apical cuttings from female mother trees.

scholarly journals CLONAL FORESTRY OF Araucaria angustifolia: PLANTS PRODUCED BY GRAFTING AND CUTTINGS CAN BE USED FOR WOOD PRODUCTION1

2017 ◽  
Vol 41 (1) ◽  
Author(s):  
Ivar Wendling ◽  
Carlos André Stuepp ◽  
Delmar Santin ◽  
Katia Christiana Zuffellato-Ribas
Keyword(s):  
Form Factor ◽  
Native Species ◽  
Araucaria Angustifolia ◽  
Clonal Forestry ◽  
Wood Production ◽  
Equivalent Age ◽  
Breast Height ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Potential Use

ABSTRACT Araucaria angustifolia (Brazilian Pine or Araucaria) is a potential native species to Brazilian forestry. However, a number of challenges and technical restraints still persist, making difficult its expansion as a species for forest plantations, among which the lack of cloning technologies evaluation in field conditions. So the present study aimed to evaluate the potential use of Araucaria plants produced by cuttings and grafting for wood production in comparison to those produced by seeds, by assessing field vigor and establishing a form factor for plantations with equivalent age. Plants from cuttings and seeds were planted in a 3 x 3 m spacing, being part of the last intended to be rootstocks for grafting. The experiment was conducted in a completely randomized design with three treatments and plots of a plant (one tree plot). Plants from cuttings had higher growth in diameter at breast height (7.4 ± 2.41 cm) and total height (4.2 ± 1.08 m) at 74 months after planting, followed by grafted plants and from seeds, with similar results. We conclude that cuttings and grafting are potential techniques for Araucaria plants formation for wood production, and, in particular, grafting is recommended by the easiness of in its application, besides the fact that it can be used for seed orchards formation and presents volumetric increase and form factor similar to seedlings.

scholarly journals Initial Growth of Amburana cearensis in Decomposed Buriti Stem Substrate and Nitrogen Doses

2018 ◽  
Vol 10 (7) ◽  
pp. 497
Author(s):  
Augusto Matias de Oliveira ◽  
Wéverson Lima Fonseca ◽  
Tiago De Oliveira Sousa ◽  
Hingrid Raiany Santos Teixeira ◽  
Fernandes Antonio de Almeida ◽  
...  
Keyword(s):  
Native Species ◽  
Significant Interaction ◽  
Aerial Part ◽  
Slow Growth ◽  
Dry Mass ◽  
Initial Growth ◽  
Initial Development ◽  
Randomized Design ◽  
Completely Randomized Design

One of the difficulties of producing native species seedlings is slow growth. The objective of this study was to evaluate the initial development of Amburana cearensis (Allem.) A. C. Smith in relation to the concentration decomposed buriti stem substratum and nitrogen doses. A completely randomized design was used in a factorial arrangement of 3 × 5 (proportions of decomposed buriti stem × nitrogen doses), with six replicates. The treatments were formulated substrates comprised of decomposed buriti stem manually mixed with soil (Dystrophic Yellow Latosol) in three proportions (0, 25 and 50%) and five nitrogen doses (0, 100, 200, 300 and 400 mg dm-3) applied in treatments. There was no significant interaction between the DRM and ND factors. However, there was an isolated effect for the following variables: Plant height (PH), stem diameter (SD), leaf number (LN), leaf area (LA), dry mass of the aerial part (DMA) and root length (RL). The best concentrations of the substrate for the variables PH, LA and DMA were 25% and 50%, whereas for SD, LN and RL, the best result was 50%. ND and other variables had good responses under recommended doses ranging from a minimum of 264.82 mg dm-3, observed in DMA, and a maximum of 400 mg dm-3, observed in RL. Both factors positively the quality of umburana seedlings.

scholarly journals Influence of alternative substrates on biomass and quality of cedar seedlings

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 ◽  
...  
Keyword(s):  
Native Species ◽  
Dry Matter ◽  
Cedrela Odorata ◽  
Forage Grasses ◽  
Planted Forests ◽  
Alternative Substrates ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Organic Compost

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.

scholarly journals Characterization of wood popularly known as “Louros” in the Brazilian amazon by visible spectroscopy and CIELAB parameters

2021 ◽  
Vol 30 (2) ◽  
pp. e007-e007
Author(s):  
Joielan-Xipaia Santos ◽  
Keyword(s):  
Native Species ◽  
Wood Anatomy ◽  
Sustainable Forest Management ◽  
Future Application ◽  
Visible Spectroscopy ◽  
Randomized Design ◽  
Management Area ◽  
Completely Randomized Design ◽  
Correct Discrimination

Aim of study: The objective of this work was to evaluate the potential of colorimetry to discriminate wood from the “louros” group, in particular to contribute to a database of Brazilian native species for future application in logging control actions. Area of study: The wooden discs were collected in a Sustainable Forest Management Area (AMFS) belonging to two extractivist communities, Paraiso and Arimum, both in the “Green Forever” Extractivist Reserve, in the municipality of Porto de Moz, Pará state, Brazil. Material and methods: Colorimetric evaluation was carried out based on data from the CIEL*a*b* system, analyzed using PCA and ANOVA in a completely randomized design in a two-factor scheme. Main results: PCA produced some evidence of color patterns and some parameters may be more useful in caracterization. Longitudinal surfaces were more indicated for this group caracterization. The data from CIEL*a*b* system produce helpful information for distinction of wood from “louros” group, and so, the colorimetric technique can be an auxiliary tool for separation of this group, complementary to other techniques as wood anatomy. Research highlights: Correct discrimination of wood from “louros” group in commerce control; Brazilian native species.

scholarly journals Biochar enriched with organic fertilizer improves the survival and growth rate of Anthocepalus cadamba seedlings planted on degraded spodosols

2019 ◽  
Vol 20 (12) ◽  
Author(s):  
Syahrinudin Syahrinudin ◽  
Wahjuni Hartati ◽  
Triyono Sudarmadji ◽  
Nurman Krisdianto ◽  
Ibrahim Ibrahim
Keyword(s):  
Growth Rate ◽  
Organic Fertilizer ◽  
Application Rate ◽  
Organic Fertilizers ◽  
Control Treatment ◽  
Diameter Growth ◽  
Randomized Design ◽  
Seedling Growth Rate ◽  
Survival And Growth ◽  
Completely Randomized Design

Abstract. Syahrinudin, Hartati W, Sudarmadji T, Krisdianto N, Ibrahim. 2019. Biochar enriched with organic fertilizer improves the survival and growth rate of Anthocepalus cadamba seedlings planted on degraded spodosols. Biodiversitas 20: 3741-3750. The application of biochar for the improvement of soil properties and fertility has drawn enormous interest worldwide nowadays and numerous application options are now available. This research was aimed to evaluate the effects of the application of biochar and organic fertilizers on the survival and growth of Anthocepalus cadamba seedlings planted on degraded spodosols soil on bioassay trial in the nursery. Bioassay trial was carried out in the nursery of Faculty of Forestry, Mulawarman University, Samarinda, Indonesia, employing a 2-factors Completely Randomized Design (CRD) with factor 1 was the rate of biochar application (i.e. six levels of treatment: 0 (control), 2, 5, 10, 25 and 100%v of biochar), and factor 2 (enrichment of organic fertilizers, i.e. with enrichment and without enrichment), and each treatment combination had 3 replications. The results showed that biochar application alone improved height and diameter growth rate of A. cadamba seedlings by 253% and 116% of control treatment (without biochar), respectively. Enrichment of organic fertilizers gave further improvement in height and diameter growth rate of A. cadamba seedlings to 386% and 150% of control treatment (without biochar), respectively. Furthermore, biochar application improved survival and biomass growth rate of the seedlings. Enrichment of organic fertilizers into biochar improved not only seedling growth rate but also more interestingly the carrying capacity of spodosols to biochar application rate. We concluded that biochar application complemented with enrichment of organic fertilizers on spodosols is highly promising for the improvement of both soil carbon sequestration and plant growth performance.

scholarly journals PENGARUH JENIS SUBSTRAT YANG BERBEDA TERHADAP SINTASAN DAN PERTUMBUHAN LOBSTER AIR TAWAR (Cherax quadricarinatus

2019 ◽  
Vol 2 (1) ◽  
pp. 17
Author(s):  
Beny Setiyo Budi ◽  
Andi Rahmad R Rahim ◽  
Muh. Sulaiman Dadiono
Keyword(s):  
Freshwater Crayfish ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Classic Problem ◽  
Randomized Design ◽  
Absolute Length ◽  
Survival And Growth ◽  
Completely Randomized Design ◽  
Water Bottom

The existence of freshwater crayfish in Indonesia is not well known among the community, even some people think that this type of lobster can only be obtained from catches. Freshwater lobster cultivators are always faced with the classic problem of low survival, especially during seed stages. The role of the water bottom substrate for freshwater crayfish is to support stabilizing water quality (temperature, pH, dissolved oxygen and ammonia levels). If the substrate condition of the habitat is not suitable, it can inhibit growth and even death. The purpose of this study is; to find out the effect of different basic substrates can increase the survival and growth of freshwater lobsters. The research method used a Completely Randomized Design (CRD) with 4 treatments 3 replications and 1 control. Each container is stocked with 2-inch lobster seeds with a density of 10 heads / container. The substrate application for each treatment is: A = Control, B = Land, C = Sand Malang, and D = Gravel. Based on the results of the research that has been done, it can be concluded that the administration of different substrates only shows significant differences in the survival variable, with the highest number of 96,67% in treatment C (Malang sand) and the lowest with 66,00% in treatment A (Control). While the variables of absolute weight, absolute length, and daily growth rate did not show significant differences in all treatments.

scholarly journals The effect of fairy shrimp “branchoneta” (Dendrocephalus brasiliensis) as the initial diet of tambaqui postlarvae

2021 ◽  
Vol 43 ◽  
pp. e53196
Author(s):  
Aline da Cruz Daltro ◽  
Carla Fernandes Macedo ◽  
Moacyr Serafim-Junior ◽  
Luan Lucas Leal Brandão ◽  
Nathália Byrro Gauthier
Keyword(s):  
Survival Rates ◽  
Stocking Density ◽  
Quality Parameters ◽  
Daily Weight Gain ◽  
Fairy Shrimp ◽  
Randomized Design ◽  
Commercial Feed ◽  
Good Potential ◽  
Survival And Growth ◽  
Completely Randomized Design

The effect of fairy shrimp “branchoneta” as the first exogenous feed for tambaqui postlarvae was evaluated. A hundred and eighty larvae were distributed in 12 aquariums, containing 1.5L of water and the stocking density was 10 larvae per liter. The trials lasted for 20 days and postlarvae were submitted to three diets (T1: Commercial feed, T2: branchoneta, and T3: Commercial feed with branchoneta), with a completely randomized design with four replicates for each treatment. During the trials, the water quality parameters were kept within ideal conditions for the species. The tambaqui postlarvae submitted to T2 and T3 showed better survival rates respectively.  Regarding the postlarval development, larvae fed with only branchoneta had a better final weight (3.48 mg), daily weight gain (0.14 mg day-1), and the best specific growth rate (8.62%). The results also showed that the tambaqui postlarvae fed with only commercial feed developed less efficiently due to lower rates of survival and growth. The present study indicates that the branchoneta promoted greater development and survival rates of the tambaqui postlarvae and therefore, it presents good potential as a live food for the species.

scholarly journals Can turbid water and refuges with aquatic macrophytes increase the survival and growth of Brycon amazonicus larvae?

2021 ◽  
Vol 10 (15) ◽  
pp. e227101522737
Author(s):  
Joana Paula de Souza Cornélio ◽  
Luís Gustavo Tavares Braga ◽  
Marle Angélica Villacorta-Correa
Keyword(s):  
Aquatic Macrophytes ◽  
Aquatic Organisms ◽  
Fish Farming ◽  
Green Water ◽  
Clear Water ◽  
Initial Development ◽  
Turbid Waters ◽  
Randomized Design ◽  
Survival And Growth ◽  
Completely Randomized Design

The productivity of aquatic organisms and higher concentration of suspended solids that occur in areas flooded by Whitewater Rivers and the presence of aquatic macrophytes are conducive to the initial development of matrinxã (Brycon amazonicus). The objective of this study was to evaluate whether turbid waters and refuges with aquatic macrophytes improve the survival and growth of the larvae of Brycon amazonicus, a species of great interest in Amazonian fish farming. For this, two experiments were conducted using a completely randomized design and with four replicas per treatment up to 120 hours after hatching (HAH), In experiment I: Brycon amazonicus larvae at 24 HAH were subjected to three treatments with different types of water: clear water (CW); clayey water (AW) and green water (GW). Experiment II: larvae with 24 HAH were maintained in clear water (CW); clear water with refuge (CWR); green water (GW); green water with refuge (GWR); clayey water (AW) and clayey water with refuge (AWR). Experiment I showed that clayey water, followed by green water, increased the survival of larvae (73.92 and 54.32%). Growth was best in larvae maintained in green water. In experiment II, the use of aquatic macrophytes did not influence the survival and growth of the larvae. Thus, we suggest the use of turbid (clayey and green) waters without refuge to increase the survival and growth of Brycon amazonicus larvae.

scholarly journals EFFECTS OF SUBSTRATE AND WATER AVAILABILITY ON THE INITIAL GROWTH OF Alibertia edulis RICH.

FLORESTA ◽  
2018 ◽  
Vol 49 (1) ◽  
pp. 089 ◽  
Author(s):  
Tatiane Sanches Jeromini ◽  
Leandro Henrique de Sousa Mota ◽  
Silvana De Paula Quintão Scalon ◽  
Daiane Mugnol Dresch ◽  
Lourenço Quintão Scalon
Keyword(s):  
Water Availability ◽  
Native Species ◽  
Water Retention ◽  
Water Levels ◽  
Chicken Manure ◽  
Initial Growth ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Red Latosol

Alibertia edulis Rich. is a native species of the Brazilian Cerrado and can be used for reforestation of degraded areas. In addition, it produces edible fruits. The objective of this study was to evaluate the effect of substrates and water levels on the emergence, initial growth, and quality of seedling of A. edulis. The substrates tested were: latosol (L), latosol + sand (L + S = 1:1), latosol + sand + chicken manure (L + S1 + CM = 1:1:0,5), latosol + sand + chicken manure (L + S2 + CM = 1:2:0,5), and latosol + commercial substrate (L + C = 1:1); and the water retention capacities (WRC) tested were: 25, 50, 75, and 100%. The experiment was carried through in a completely randomized design and subdivided into a plot scheme, in which the plots represented water availability and the subplots represented the substrates. Latosol + commercial substrate at 100% of WRC provided the best conditions for emergence, initial growth and formation of seedlings of A. edulis. Sowing in the substrate Dystroferric Red Latosol isolated at 25% of WRC should not be used for the formation of seedlings of this species.

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