Effect of Different Types of Biochar on Growth of Cocoa Seedlings (Theobroma cacao L.)

2019 ◽  
Vol 12 (1) ◽  
pp. 12-18
Author(s):  
Andi Bahrun ◽  
Mardani . ◽  
Tresjia C. Rakian ◽  
Nuriadi . ◽  
Abdul Madiki
2019 ◽  
Vol 1 (2) ◽  
pp. 143-152
Author(s):  
Redho Anggara Nubriama ◽  
Erwin Pane ◽  
Sumihar Hutapea

Cacao is one of the predominant plantation in Indonesia so that the production should be improved constantly. The purpose of this researce was to obtain data on the growth of cacao seedlings (Theobroma cacao L.) by applying rabbit cage liquid organic fertilizer and composting baglog waste with different doses. This research was carried out at the Medan Area faculty of agriculture experiment area located on the street PBSI No.1 Medan Estate. The research was conducted  from  July to  November  2018.  Using  Factorial  Randomized  Group Desing (RGD) with two replications. The first factor tested was rabbit cage liquid organic fertilizer namely U0= without POC, U1= consentration 5% (50 ml POC/liter), U2= consentration 10% (100 ml POC/liter), U3= consentration 15% (150 ml POC/liter). The second   factor is baglog waste compost which is L0= without compost baglog waste, L1= 20% baglog compost waste (600g) + 80% top soil (2.400g), L2= 40% baglog compost waste (1.200g) + 60% top soil (1.800g), L3= 60% baglog compost waste (1.800g) + 40% top soil (1.200g). The results showed that administration of baglog waste compost can increase growth ( plant height, number of leaves, stem diameter and canopy wet weight) of cocoa seedlings


Author(s):  
Sulistyani Pancaningtyas ◽  
Teguh Iman Santoso ◽  
Sudarsianto .

Study of germination methods conduct to get information about seed viability based on germination rate, percentage of germination and vigority. Germination methods was studied to get the efficiency and effectivity of germination, easy to handle, low costs with high vigority. Sand and gunny sack methods  for germination, need extensive place  and 3-4 days germination period after planting. This research will study the alternative of germination method with soaking. This method can be accelerating  germination rate and effectively place usage without decreasing the quality of cacao seedling.The research was done at Kaliwining Experimental Station, Indonesian Coffee and Cocoa Research Institue. This research consist of two experiment was arranged based on factorial completely random design. First experiment will observed to compared germination rate and the second experiment will observed seedling quality between soaking and wet gunny sack germination method.The results showed that length of radicel on soaking method longer than wet gunny sack method. Growth of radicel started from 2 hours after soaking, moreover length of radicel at 4 hours after soaking have significant different value with gunny sack method. On 24 hours after soaking have 3,69 mm and 0,681 mm on wet gunny sack treatment. Except lengt of hipocotyl, there is not different condition between seedling that out came  from soaking and wet gunny sack method. Length of hipocotyl on 36 hours after soaking have 9,15 cm and significant different between wet gunny sack germination method that have 5,40 cm. Keywords : seed germination, soaking method, Theobroma cacao L., cocoa seedlings


Author(s):  
Luis Tarquino Llerena Ramos ◽  
Cesar Ramiro Bermeo Toledo ◽  
Paula Marisol V

This research was conducted at the experimental farm "La Maria" State Technical University of Quevedo, located at Km 7.5 Vía Quevedo - El Empalme, with the overall objective to determine the effect of different organic substrates on seedling growth cocoa nursery conditions. The specific objectives were to evaluate the growth of cocoa plants in different substrates study, identify the substrate that allows greater root development of seedlings of cacao and perform economic analysis of each of the treatments studied. The experiment was conducted under a completely randomized design with 10 treatments in three replicates and treatment means were compared with Duncan test at 95% probability. The treatments were: T1: 60% Bokashi + 40% black earth, T2: 60% Bokashi + 40% sawdust raft, T3: 60% Bokashi + 40% chaff burnt rice, T4: 40% Bokashi + 20% sawdust balsa + 20% black soil + 20% chaff burnt rice, T5: 60% vermicompost + 40% black earth, T6: 60% vermicompost + 40% sawdust raft, S7: 60% vermicompost + 40% chaff burnt rice, T8: 40% vermicompost + 20% black soil + 20% chaff burn rice + 20% sawdust raft, T9: 30% bokashi + 30% vermicompost + 20% black earth + 10% sawdust + 10% balsa burning rice chaff, T10: 75% + 25% black earth rice husks. The main results of this research it was observed that the planted in treating 9 (30% Bokashi, 30% vermicompost, 20% black soil, 10% sawdust balsa and 10% chaff burnt rice), was recorded 100% germination, plant also produced in this substrate were greater height, stem diameter, presence of leaves and root length. Treatment 10 (75% of black earth and 25% rice husks) produced the highest returns with 59.68% of the production of 1000 seedlings, meaning that for every dollar invested a profit of $ 0.60 was obtained for every dollar reversed, however, with treatment 9 (30% bokashi, 30% vermicompost + 20% black soil + 10% sawdust raft + 10% chaff burnt rice) plants showed better characteristics that are the basis for acceptance by the buyer, generating a return of 34.23%, as a result of higher production cost.


2020 ◽  
pp. 1695-1700
Author(s):  
Vinicius de Souza Oliveira ◽  
Stefany Sampaio Silveira ◽  
Robson Prucoli Posse ◽  
Laís Gertrudes Fontana Silva ◽  
Valeria Pancieri Sallin ◽  
...  

The study aimed to evaluate the growth and quality of SJ-02 cocoa seedlings under different irrigation depths and cultivation container sizes. The experiment was arranged as a completely randomized design, in a factorial scheme (4x3), where the first factor consisted of the application of four different irrigation depths (6, 10, 12 and 14 mm d-1) and the second one was composed of three different cultivation containers (small, medium and large). Twelve treatments were evaluated with eight repetitions, totaling 96 plants in the experimental field. At 74 days after sowing, the leaf area, stem diameter, plant height, dry mass of the aerial part, dry mass of the root system, total dry mass and Dickson's quality index of all seedlings were analyzed. The 10.32 mm d-1 irrigation depth and the medium and large cultivation containers provided the highest quality in seedling production, being the most suitable ones. However, there was no interaction between the factors


2019 ◽  
Vol 46 (3) ◽  
pp. 322-327
Author(s):  
Fifi Puspita ◽  
Sukemi Indra Saputra ◽  
Dan Jenny Merini

Development of cocoa (Theobroma cacao L.) requires high-quality seeds. Adding growth substance from Bacillus sp. endophytes is expected to increase the growth of cocoa seedlings. The purpose of this research was to evaluate the ability of Bacillus sp. endophytes to produce Indole Acetic Acid (IAA) hormone, evaluate the effects of Bacillus sp. endophytes application on growth of cocoa seedling, and obtain the best concentration to increase growth of cocoa seedling. The experiments were conducted in the laboratory and in the field from June to October 2015. The study was conducted in two stages: in vitro and in vivo.The first experiment tested the ability of Bacillus sp. endophytes to produce IAA using tryptophan enriched picovskaya liquid medium and non-enriched tryptophan. The results from the first experiment showed that all Bacillus sp. endophytes produce IAA hormones. The second experiment tested the concentrations of Bacillus sp. endophytes to improve the growth of cocoa seedlings. The experiment was conducted using a completely randomized design consisting of 5 treatments and 4 replications, i.e., without treatment of Bacillus sp., and concentrations of 1011, 1012, 1013, and 1014 cfu/mL. The parameters observed were the number of bacterial colonies of Bacillus sp. endophytes, cocoa seed height, stem diameter, number of leaves and planting area of 4 month cocoa seedlings. The results from the second experiment showed that all concentrations of Bacillus sp. endophytes increase the growth of cocoa seedlings. The concentration of 1011 cfu/mL produced more colony in planting medium, increased height, stem diameter, leaf number and leaf area in cocoa seedlings.


2020 ◽  
Vol 4 (1) ◽  
pp. 149-159
Author(s):  
Datul Fadillah ◽  
Trisda Kurniawan ◽  
Erida Nurahmi

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan media tanam dan beberapa konsentrasi mikroorganisme lokal terhadap pertumbuhan bibit kakao. Penelitian ini dilaksanakaan di Kebun Percobaan 2 dan Labaratorium Hortikultura, Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan Juli sampai Oktober 2018. Penelitian ini menggunakan Rancangan Acak Kelompok pola faktorial 4 x 4 dan 3 ulangan, sehingga terdapat 48 satuan percobaan dan dilanjutkan dengan uji Beda Nyata  Jujur taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah perbandingan media tanam dengan 4 taraf yaitu: kontrol-2 tanah : 1 pupuk kandang (M0), 2 tanah : pupuk kandang : 1 sekam bakar (M1), 1 tanah : 2 pupuk kandang : 1 sekam bakar (M2), 1 tanah : 1 pupuk kandang : 2 sekam bakar (M3). Faktor kedua adalah konsentrasi mol bonggol pisang dengan 4 taraf yaitu 0, 10%, 20% dan 30% L-1 air. Parameter yang diamati adalah tinggi bibit, diameter pangkal batang, jumlah daun, berat berangkasan basah dan berat berangkasan kering. Hasil penelitian menunjukkan bahwa, perlakuan perbandingan media tanam berpengaruh tidak nyata terhadap semua parameter. Pemberian beberapa konsentrasi mikroorganisme lokal berpengaruh nyata terhadap jumlah daun bibit kakao umur 8 MST dan berpengaruh sangat nyata pada jumlah daun bibit kakao umur 12 MST. Terdapat interaksi yang nyata antara perlakuan media tanam M0 dan konsentrasi mol 20% (M2).The Effect of Plant Medium and Local Microorganism Banana Tuber on the Growth of Cocoa Seedling (Theobroma cacao L)Abstract. The purposes of this research were to know the effect of comparison media planting and several concentrations of local microorganism on the growth of cocoa seedlings. This research was conducted at Experimental Garden 2 and Horticulture Laboratory, Department of Agrotechnology, Faculty of Agriculture Syiah Kuala University, Banda Aceh from July to October 2018. This study used a Randomize Block Design of 4 x 4 factorial pattern with 3 replication, so that were 48 experimental units and continued with a Honestly Significance Difference 5% level on significant F test result. The first factor is the comparison medium planting of 4 levels : control- 2 soil : 1 manure (M0), 2 soil : 1 manure : 1 hueks fuel (M1), 1 soil : 2 manure : 1 hueks fuel (M2) and 1 soil : 1 manure : 2 hueks fuel (M3). The second factor is the concentration of local microorganism of 4 levels: 0 (P0), 10% (P1), 20% (P2) and 30% (P3) L-1 water. Parameters observed were plant height, stem base diameter, number of leaves, wet weight and dry weight. The result showed that the treatment of comparison planting medium had unsignificantly effect on all parameters. Consentrations of local microorganinism has a significant effect on the number of leaves of cocoa seedlings aged 8 WAP and has a very significantly effect on the number of leaves cocoa seedlings aged 12 WAP. There is significantly effect between the treatment of comparison planting medium control-2 tanah : 1 pupuk kandang (M0), and local microorganism concentrations 20% (P2).


2019 ◽  
Vol 11 (16) ◽  
pp. 233
Author(s):  
Vinicius de Souza Oliveira ◽  
Ana Paula Braido Pinheiro ◽  
Basílio Cerri Neto ◽  
Sara Dousseau Arantes ◽  
Cleidson Alves da Silva ◽  
...  

Under flooding conditions, plants exhibit morphological and physiological characteristics that indicate that the plant is undergoing stress. In this sense, the objective of this work was to evaluate the gas exchange of cocoa (Theobroma cacao L.) seedlings submitted to different times of flooding. The study was carried out at the experimental farm of the Capixaba Institute for Research Technical Assistance and Rural Extension, in Linhares, North of the State of Espírito Santo, Brazil. The experimental design was completely randomized. The treatments consisted in the flooding of the seedlings on days 0 (without flooding), 1, 2, 4 and 8. The seedlings were evaluated for gas exchange by characteristics: liquid assimilation of CO2; stomatal conductance; transpiration rate; water use efficiency. The gas exchange of cocoa seedlings were influenced by the flooding period in which they were submitted with a decrease in the values liquid assimilation of CO2, stomatal conductance and transpiration rate after the fourth day of flooding, after this period the seedlings developed morphological modifications that allowed them to adapt the flooding conditions, improving the liquid assimilation of CO2.


2020 ◽  
pp. 1583-1588
Author(s):  
Robson Prucoli Posse ◽  
Vinicius de Souza Oliveira ◽  
Francielly Valani ◽  
Stefany Sampaio Silveira ◽  
Sophia Machado Ferreira da Silva ◽  
...  

Cocoa (Theobroma cacao L.) is one of the most economically important species due to its use in the production of chocolate, honey, pulp, animal feed, fertilizers, jellies, butter and cocoa powder. The production of seedlings such as through sexual propagation is the essential stage for the establishment of new cocoa crops, in which the seedlings are produced by seeds. This is the most commonly used method in cocoa. Several factors interfere with the final quality of the seedlings, such as the planting season and the irrigation management. Thus, the objective of this study was to evaluate the effects of different irrigation depths and planting seasons on the quality and growth of Bahia genotype cocoa seedlings produced through sexual propagation. The study took place at the Federal Institute of Espírito Santo, Campus Itapina, in Colatina, located in the Northwest region of the State of Espírito Santo, Brazil. The experimental design was completely randomized in a split-plot scheme. The plots consisted of six different irrigation depths: 4, 6, 8, 10, 12 and 14 mm d-1 and the subplots, of three different planting seasons: autumn, winter and spring. At 50 days after sowing, the seedlings were evaluated for the following morphological characteristics: plant height, stem diameter, leaf area, length of the root system, dry mass of the aerial part, dry mass of the root system, total dry mass and Dickson quality index. The production of Common Bahia genotype cacao seedlings is more effective in the irrigation depth of 9.44 mm d-1, demonstrating better development and higher plant quality.


AGRIFOR ◽  
2019 ◽  
Vol 18 (1) ◽  
pp. 155
Author(s):  
Yulianus Tibe

Plant Seeds. The aim of the study was to determine the effect of goat manure and the dose of Super Natural Nutrition Organic Fertilizer and its interaction on the growth of local varieties of cacao (Theobroma cacao L.) seeds.The research design used was a Completely Randomized Design (CRD) in factorial 4 x 4, and repeated 4 times, consisting of 2 research factors. The first factor is goat manure (P). The second factor is Liquid Organic Fertilizer Super Natural Nutrition (K).The results showed that the treatment of goat manure (P) had no significant effect on the diameter of cocoa seedlings 60 days after planting (HST), the number of cacao seedlings aged 30, 60 HST and very significant effect on the height of cocoa seedlings aged 30, 60, 90 and 120 HST, diameter of cacao seedlings aged 30, 90, 120 HST, number of cacao seedlings aged 90 and 120 HST and root length. The treatment of good manure is p3 (goat manure 60 g / polybag). The highest cacao seedling height is 41.45 cm and the lowest is p0 (without goat manure): 30.67 cm, for the highest diameter of cocoa seedlings 0.071 cm and the lowest treatment k0 (without goat manure): 0.058 cm and leaves at most 20 pieces, and the number of leaves is a little p0 (without goat manure) 9 pieces. The longest root of cocoa seedlings is 15.06 cm and the shortest root length with treatment k0 (without goat manure): 13 cm.The treatment of Super Natural Nutrition liquid organic fertilizer had no significant effect on the number of cocoa seedlings aged 60, 120 HST and the root length of cocoa seedlings aged 120 days after planting, but significantly affected the height of cocoa seedlings, cocoa seedling stem diameter of 120 HST and very the actual height of the plant, the diameter of the cacao seedlings aged 30, 60, 90 HST, the number of cacao seedlings aged 30, 90 HST. The best treatment for Super Natural Nutrition organic liquid fertilizer for the highest cocoa seed height is (k3); 5 ml of POC SNN / l water is 35, 69 cm and the lowest is k0 (without POC SNN) which is 34.80 cm.


Author(s):  
Jerome A. Dogbatse ◽  
A. Arthur ◽  
I. Amoaku-Attah ◽  
A. K. Quaye ◽  
S. Konlan ◽  
...  

Aim: To study the effects of cocoa pod husk based compost: Soil mixtures on growth of cocoa (Theobroma cacao L.) seedlings. Study Design: The experiment was laid out in a Complete Randomized Design with four replications. Place and Duration of Study: The experiment was conducted at the main nursery of Cocoa Research Institute of Ghana at New Tafo - Akim (06°13’ N and 00°22’ W) in the Eastern Region of Ghana, between November, 2016 and December 2017. Methodology: Surface soil classified as Ferric Lixisols together with four compost types produced from cocoa pod husk, poultry manure and Panicum maximum was used to fill polythene bags. A Soil alone (T1) and Soil + standard foliar fertilizer (T2) with a four compost:soil mixture treatments namely T3 - 1:1 w/w, T4 - 1:2 w/w, T5 -1:3 w/w and T6 - 2:1 w/w were tested. Each of the four compost types was used for T3 to T6. Surface soil, poultry manure, compost and compost-soil mixtures were carried out using standard laboratory procedures. Mixed hybrid cocoa seedlings were raised and growth evaluated monthly. Results: Interaction effect was observed between compost types and compost-soil mixtures on dry matter yield of cocoa seedlings. Cocoa seedlings grown in T5 of compost 1 had the highest dry matter yield. Higher shoot: root ratio of cocoa seedlings were observed in compost 1. The order of desirability for the four compost types in terms of compost-soil mixtures was compost:soil (1:3 w/w) > compost:soil (1:2 w/w) > compost:soil (2:1 w/w) > compost:soil (1:1 w/w). CMPT1 will ensure more vigorous cocoa seedlings growth after transplanting and subsequently, higher establishment rate. Conclusion: The optimum mixture of compost and soil for growing cocoa seedlings under limited availability of fertile surface soil is compost 1 mixed with surface soil at the ratio of 1:3.


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