Shoot Wet Weight Research Articles

Effect of spraying with Moringa plant extract and potassium silicate on some vegetative growth indicators of banana seedlings obtained from tissue culture Musa spp

The field experiment was conducted in one of the covered greenhouses in Al-Saran affiliated with the College of Agriculture and Marshes, University of Dhi Qar for the 2022-2023 growing season on banana seedlings of the Grand Nine variety resulting from tissue culture in order to determine the effect of Moringa extract and potassium silicate on the vegetative growth characteristics on 2/5/2023. Aged 3 to 4 months, 48 identical offspring were chosen. First, spraying with Moringa leaves extract at four concentrations (0, 5, 10, and 15) g L-1; second, spraying with potassium silicate at four concentrations (0, 1, 2, and 3) ml L-1.
 The statistical analysis revealed that Moringa extract at a concentration of 15 g L-1 was superior in terms of all vegetative growth characteristics (plant height (104.38 cm), stem diameter (71.60 mm), number of leaves (10.60), plant leaf-1, and leaf area (1,535.05 square millimeters). cm2, the wet weight of the shoot is (1084.3) g, the dry weight is (120.45 g), and the rate of root propagation is (9.65) g per square centimeter per day. 2 kg-1.
 The results of the statistical analysis demonstrated the superiority of potassium silicate at a concentration of 3 ml L-1 in all vegetative growth characteristics (plant height (95.90) cm, stem diameter (67.08) mm, number of leaves (9.28) plant leaf-1, leaf area (1,368.0) cm2, and plant weight (13,680.00 g)). The wet weight of the shoot is (943.9) g, its dry weight is (104.14 g), and its rate of root propagation is (9.71) g.2 kg-1,
 As for the combinations, the combination of Mornica extract and potassium silicate at a concentration of (15 g L-1 x 3 ml L-1) performed the best in terms of vegetative characteristics, plant height (125.67 cm), stem diameter (84.80 mm), and number of leaves (13.40). -1, leaf area (1912.22 cm2), shoot wet weight (1417.5) g, shoot dry weight (157.5) g, and root spread rate (11.4) g 2 kg-1.

Pengaruh Aplikasi Kompos Tandan Kosong Kelapa Sawit (Elaeis guineensis Jacq) Terhadap Pertumbuhan Vegetatif Bibit di Main Nursery

This research was carried out in the practice garden and Laboratory of the Indonesian Palm Oil Institute (ITSI) Medan. It will be carried out from March to June 2022 to get the growth and development of oil palm seedlings by applying empty palm fruit bunch compost as the use of organic fertilizer during the nursery period. This study used a Non-Factorial Randomized Block Design (RBD) with one factor studied, namely variations in the application of compost to oil palm seedlings. Parameters observed were plant height, stem diameter, number of leaves, root length, root volume, root fresh weight, shoot wet weight, root dry weight, shoot dry weight. The data obtained was analyzed statistically by Analysis Of Variance (ANOVA). Based on the results of observations and analysis of variance, it was shown that the application of empty palm fruit bunch compost had a significant effect on shoot wet weight and had a significant effect on shoot dry weight and had a significant effect on stem diameter growth at 16 WAP observations, and had no significant effect on plant height, number leaves, root length, root volume, root wet weight, root dry weight.

Examining the Effects of Biochar in Spinach Cultivation with Increased Irrigation Water Salinity on Some Physical and Physiological Properties of the Plant

The inadequacy of fresh water resources in today's conditions has revealed the use of salty water as an alternative water source in agricultural irrigation but salinity, which is shown as the most important source of abiotic stress, increases osmotic stress and decreases the water intake of the plant, resulting in a physiological drought. For this reason, there is a need for applications to improve the decreasing efficiency in the use of salt water in irrigation through different practical and economic approaches. This study investigating the effects of biochar application into the soil against irrigation water salinity in spinach cultivation on some physical and physiological properties of the plant was carried out in five-liter pots in greenhouse conditions, in a completely randomized factorial experimental design with three replications, in three different irrigation water salinity levels with NaCl salt source [I0: tap water; 0.4 (control), I1: 2.5, I2: 5 dS m-1] and three different biochar dosage based on weight [B0: 0 (control), B1: 1.5, B2: 3%] conditions. As a result of the study, plant height, leaf number and area, shoot wet weight from physical properties and chlorophyll and leaf relative water contents from physiological properties decreased with increasing irrigation water salinity levels but the membrane damage decreased, while the physical and physiological properties of spinach increased with the increasing mixing ratio of biochar to the soil, excluding membrane damage. It was found that the use of biochar against irrigation water salinity can be recommended considering that mixing biochar to the soil against irrigation water salinity in spinach cultivation regulates the physical and physiological properties of the plant but to obtain more comprehensive information on this subject, evaluation of different irrigation water salinity and biochar ratios in terms of field studies has emerged as a recommendable result.

Pengaruh Hasil Larutan Fermentasi Daun Gamal terhadap Pertumbuhan, Produktivitas dan Kualitas pada Tanaman Kale Curly (Brassica oleracea var. sabellica)

This research aims to determine the effect of giving gamal leaf ferment solution on the growth, productivity and quality of kale plants and to obtain the concentration of gamal leaf ferment solution which has an optimum effect on the growth, productivity and quality of curly kale plants. The research method used in this study is the experimental method. The results showed that based on the results of the test of variance, liquid organic fertilizer (POC) fermented gamal leaves with concentrations of 0%, 40 ml/l, 80 ml/l, 120 ml/l and 180 ml/l had a very significant effect on plant growth. kale curly seen from plant height, number of leaves, stem diameter, and crown width, then related to the effect of giving gamal leaf ferment solution on the productivity of Kale Curly plants shows that there is a very significant effect on the parameters of root wet weight and root dry weight for each concentration given , whereas for the parameters of shoot wet weight and shoot dry weight did not show a significant effect, then on the quality of kale curly plants showed that there was a very significant treatment of POC fermented gagal leaves on total chlorophyll, but not significantly different for chlorophyll A, chlorophyll B, and vitamin C. So that it can be concluded that in this study the administration of fermented gamal leaves had a very significant effect on the growth of kale culy plants, for productivity there was a very significant effect on the parameters of root wet weight and root dry weight, but not with shoot wet weight and shoot dry weight , while for the quality of kale curly there was a very significant treatment for total chlorophyll, but not for chlorophyll A, chlorophyll B, and vitamin C, while the most optimum concentration of fermented galam leaves for growth, productivity, and quality of kale curly was administration of fermented gamal leaves with a concentration of 120 ml/l.
 Keywords: Gamal Leaves Fermentation, Quality, Growth, Productivity, Curly Kale Plant

PEMBERIAN PUPUK ORGANIK CAIR LIMBAH TAHU DALAM MEDIA HIDROPONIK RAKIT APUNG TERHADAP PERTUMBUHAN TANAMAN SAWI HIJAU (Brassica juncea L.)

The content of protein, fiber, vitamins, and fat contained in mustard greens (B. juncea) is the main attraction for people to consume vegetables. Green mustard plant growth using hydroponic media can help optimize the absorption of nutrients needed by plants. The application of the floating raft hydroponic method with the addition of liquid organic fertilizer from tofu liquid waste is an effort that is expected to overcome this problem. This research to determine the impact and concentration of POC tofu liquid waste which has the best impact on the growth of green mustard plants. Use of RAL with 6 levels of treatment, namely P1=0%POC; P2 = 35%POC; P3 = 40%POC; P4 = 45%POC; P5 = 50%POC; P6 = 55%POC. Data were analyzed using ANOVA with a 95% confidence level. The application of liquid organic fertilizer significant impact on measuring plant height, number of leaf blades, leaf surface area, root shoot wet weight, root shoot dry weight, and chlorophyll. The best liquid organic fertilizer treatment of tofu waste was the concentration of 55% for plant height (31.72 cm), number of leaves (13.50), leaf area (1287 mm), crown wet weight (65.95 g), wet weight root (2.97 g), shoot dry weight (37.8 g), root dry weight (1.25 g), chlorophyll a content (24.74 mg/g), b (30.54 mg/g) and total (52.40 mg/g).

RESPON PERTUMBUHAN STEK PUCUK DAN STEK BATANG GANITRI (Elaeocarpus ganitrus Roxb.) TERHADAP HORMON PERTUMBUHAN

Ganitri (Elaeocarpus ganitrus Roxb) is a fast-growing tree species that is widely found in Indonesia, Malaysia, Myanmar, and Thailand. Ganitri seedlings’ generative propagation takes a long time because the seed coat is very hard, causing difficulty to germinate, therefore it is conducted vegetatively using stem and shoot cuttings with hormone treatment. The research objective was to obtain growth response of shoot cuttings and ganitri stem cuttings to hormone administration. The research was conducted in Silviculture greenhouse at Center for Standardization of Instruments for Sustainable Forest Management in Bogor. It used a Completely Randomized Design with a factorial pattern consisting of 2 factors. The first factor is cutting material: shoot cuttings and stem cuttings. The second factor is phytohormones: Rootone-F and coconut water. The results showed shoot cuttings with Rootone-F treatment gave the best growth compared to other treatment combinations. This was indicated by percent growing cuttings, percent rooted cuttings, root length, shoot wet weight, root wet weight, shoot dry weight and root dry weight which were higher with values of 63.33%, 53.0%, 8.10 cm, 2.92 grams, 0.28 grams, 1.33 grams, and 0.21 grams respectively. Thus, shoot cuttings survival with Rotoone-F hormone had a higher result than stem cuttings, reaching 63.33%.

Respon Pertumbuhan Dan Hasil Jagung Lokal (Zea Mays L.) Varietas Talango Terhadap Pemberian Selenium (Se)

Local maize plants have prospects to be developed in line with the increasing demand and level of community consumption. One of the local varieties of maize, the Talango variety, has the advantages of early maturity of 75 days, long shelf life, high yield of maize and cheap seed prices. The nutritional content of the Talango variety is higher than that of hybrid maize, such as 11.24% protein, 4.96% fat and 75.6% carbohydrates. This study were to determine the best dose of selenium to growth and yield of local maize (Zea mays L.) Talango varieties. This study used Randomized Block Design (RBD) one factor consisting A0 = 0 µm, A1 = 5 µm, A2 = 10 µm, A3 = 15 µm, A4 = 20 µm, A5 = 25 µm, A6 = 30 µm, A7 = 35 µm, A8 = 40 µm, A9 = 45 µm. Each treatment will be repeated 4 times so that there are total 40 experimental units. The research variebles included plant height, root wet weight, shoot wet weight, total wet weight, flowering age, seed weight and 100 seed weight. The data obtained will be analyzed using analysis of variance (ANOVA). The result will be analyzed using Duncan Multiple Range Test (DMRT) level of α 5% to compare the effect between treatments on plant yield. The treatment of selenium (Se) doses at different levels had a positive effect on increasing the observed variables of root fresh weight, shoot fresh weight, total fresh weight, flowering age, seed weight per plant and 100 seed plant weights. The results showed that the Se treatment with doses of 20 μM to 25 μM and 35 μM to 40 μM produced the best seed weight per plant in the range of 59.25 g – 79.84 g which was significantly different from the control and other treatment doses.
 Keywords: Local maize, Talango varieties, Selenium

Efektivitas Aplikasi Pupuk Organik Cair Urine Sapi Terhadap Pertumbuhan Vegetatif Bibit Kelapa Sawit (Elaeis guineensis Jacq.) di Pre Nursery

This study was conducted to determine the effect of the application of liquid organic fertilizer in cow urine on the vegetative growth of oil palm seedlings in early nurseries. This research was conducted in the experimental garden of ITSI Medan. This research was conducted for 3 months. Starting from August 2021–October 2021. This study used a non-factorial Randomized Block Design (RAK) method consisting of 5treatments with 5 replications, so the number of samples was 25 seeds. Parameters observed were plant height, stem diameter, number of leaves, shoot dry weight, root dry weight, shoot wet weight and root wet weight. The data obtained were statistically analyzed by DMRT and ANOVA tests. The results of this study indicate that the application of liquid organic fertilizer cow urine has an effect on the vegetative growth of oil palm seedlings in early nurseries with the best dose of 20 ml cow urine. The standard gave some significant and very significant effects on stem height, stem diameter, number of leaves, but had no effect on wet weight and dry weight. Keywords:urine, pre nursery, poc

Investigation the effect of drought stress on tolerant and resistant rice (Oryza sativa L.) varieties in terms of morphologic and genetic characters

Drought associated with global warming is a major limiting factor for crop production. This abiotic stress affects the quality and yield of rice (Oryza sativa L.) which is a model organism and also one of the major consumed products all over the world. In this study, we aimed to analyse morphologic (root length, shoot length, root wet weight, shoot wet weight, root dry weight and shoot dry weight) of rice varieties (Dhan 65, Dhan 71, Kızıltan and Karacadağ local rice) grown under drought stress during 21 days. For genetic properties, Hopi and Osr30 retrotransposon movements were investigated by using IRAP marker technique. Depending on the decreasing in the amount of water, we observed that all growth parameters showed variable results in four varieties. Moreover, IRAP-PCR indicated different polymorphism ratios among samples. These rates were 0–75% for Hopi and 0–50% for Osr30. As far as we know, this is the first detailed report on dhan 65, dhan 71, kızıltan and Karacadağ local rice varieties grown under drought stress.

PENGARUH PUPUK ORGANIK CAIR DARI BONGGOL PISANG TERHADAP KADAR HARA NITROGEN TOTAL DAN C-ORGANIK PADA BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.)

Suspension media is made of natural ingredients to multiply microorganisms that can accelerate the destruction of organic matter. Banana hump contains water, iron, phosphorus, calcium, carbohydrates, calories and protein, which are potential as organic fertilizers. Application of banana weevil fertilizer is expected to increase the carrying capacity of the soil for the availability of organic matter and nutrients. The purpose of this study was to determine the best concentration or dose of organic liquid fertilizer for banana weevil on the vegetative growth of oil palm (Elaeis guineensis Jacq.) seedlings in the Main Nursery. Based on this statement, this research was compiled with the object of oil palm in the Main Nursery. This research was conducted in the Nursery Practice Garden area at STIP-AP Medan. Soil analysis was carried out at the Soil Laboratory of the Agricultural Technology Research Institute (BPTP) of North Sumatra. The time of the study was carried out for 8 months, from January 2021 - August 2021. This study used a Randomized Block Design (RAK) with 2 factors, namely Factor (1) Liquid Organic Fertilizer Banana Cobs and Factor (2) Compound Fertilizer (NPK) 16:16 :16. The treatment was repeated 3 times, with the number of samples being 2 plants so that the sample population was 54 plants. Parameters observed were seedling height, stem circumference, number of leaves, leaf width, root wet weight, shoot wet weight, shoot dry weight, root dry weight, total nitrogen nutrient content and C-organic nutrient content. The data obtained were analyzed statistically by analysis of variance (ANOVA) with 5% and 1% significant difference tests. The results showed that the treatment of banana weevil liquid organic fertilizer and compound fertilizer had no significant effect on the observed parameters. However, the biomass formed was significantly affected as indicated by the weight parameter. The availability of total nitrogen and C-organic nutrients in Ultisol soil showed a very low classification with total nitrogen values of 0.07 – 0.09% and C-organic values of 0.22 – 0.54%.

PENGARUH PUPUK ORGANIK CAIR DARI BONGGOL PISANG TERHADAP KADAR HARA NITROGEN TOTAL DAN C-ORGANIK PADA BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.)

Suspension media is made of natural ingredients to multiply microorganisms that can accelerate the destruction of organic matter. Banana hump contains water, iron, phosphorus, calcium, carbohydrates, calories and protein, which are potential as organic fertilizers. Application of banana weevil fertilizer is expected to increase the carrying capacity of the soil for the availability of organic matter and nutrients. The purpose of this study was to determine the best concentration or dose of organic liquid fertilizer for banana weevil on the vegetative growth of oil palm (Elaeis guineensis Jacq.) seedlings in the Main Nursery. Based on this statement, this research was compiled with the object of oil palm in the Main Nursery. This research was conducted in the Nursery Practice Garden area at STIP-AP Medan. Soil analysis was carried out at the Soil Laboratory of the Agricultural Technology Research Institute (BPTP) of North Sumatra. The time of the study was carried out for 8 months, from January 2021 - August 2021. This study used a Randomized Block Design (RAK) with 2 factors, namely Factor (1) Liquid Organic Fertilizer Banana Cobs and Factor (2) Compound Fertilizer (NPK) 16:16 :16. The treatment was repeated 3 times, with the number of samples being 2 plants so that the sample population was 54 plants. Parameters observed were seedling height, stem circumference, number of leaves, leaf width, root wet weight, shoot wet weight, shoot dry weight, root dry weight, total nitrogen nutrient content and C-organic nutrient content. The data obtained were analyzed statistically by analysis of variance (ANOVA) with 5% and 1% significant difference tests. The results showed that the treatment of banana weevil liquid organic fertilizer and compound fertilizer had no significant effect on the observed parameters. However, the biomass formed was significantly affected as indicated by the weight parameter. The availability of total nitrogen and C-organic nutrients in Ultisol soil showed a very low classification with total nitrogen values ​​of 0.07 – 0.09% and C-organic values ​​of 0.22 – 0.54%.

PENGARUH APLIKASI LIMBAH (Decanter solid) PABRIK KELAPA SAWIT TERHADAP PERTUMBUHAN VEGETATIF SERTA KADAR KLOROFIL DAUN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq) DI PEMBIBITAN UTAMA

Oil palm is a plantation crop that has an important role in Indonesia today. This plant is a plant that produces vegetable oil and its derivative products. This study aims to determine the effect of solid decanter waste application on the vegetative growth of oil palm seedlings (Elaeis guineensis Jacq). This research was conducted in the research area of the Medan College of Agricultural Agribusiness (STIPAP) from January - July 2020. This study used a non factorial randomized block design (RBD) consisting of S0: Without decanter solid treatment, S1: 0,5 kg decanter solid, S2: 1,0 kg decanter solid, and S3: 1,5 kg decanter solid. Parameters observed were plant height, number of leaves, stem girth, leaf chlorophyll content, shoot wet and dry weight, root wet and dry weight. The data obtained were analyzed statistically with analysis of variance (ANOVA) with further test of LSD 5%. The treatment of decanter solid application has a significant effect based on statistical tests on the vegetative growth of oil palm seedlings, namely on the height of the seeds and stem circumference with the value of F-count seed height > F-Table 0,5% at 8 MSA and F-Count on stem circumference > F- Table 0,1% at 16 MSA and 20 MSA, while the number of leaves, shoot wet and dry weight, root wet and dry weight and leaf chlorophyll content showed no significant effect

The Effect of Different Growing Environments on Seedling Development in Transplanting Paddy Production

In the world, the seedling planting method comes into prominence to save on irrigation water due to climatic changes, to increase the yield per unit area with lengthy vegetation varieties, and to reduce chemical input in pest and disease control. The basic element of being successful in transplanting paddy production is to grow healthy and quality seedlings. For machine transplanting, it is necessary to grow in a special viol environment. For paddy seedlings in trays, it is required to prepare special mortars rich in plant nutrients and economical. In this research, four replications were carried out in an unheated polyethylene greenhouse of Ondokuz Mayıs University Agricultural Research and Application Center in 2020 with 20 different mortar media and three paddy varieties (Baldo, Vasco and Tosya Güneşi). To determine the seedling quality, seedling length, seedling stem diameter, leaf number, root length, root number, above ground and root wet weight, above ground, and root dry matter ratio values were examined 21 days after planting. According to the research results, the effect of different medium crosses, cultivars, and environment x cultivar combinations used on the seedling quality characteristics was statistically significant. The results showed that seedling length was 68.39-218.19 mm, seedling stem diameter was 0.97-2.64 mm, number of leaves was 2.0-4.0, root length was 16.95 - 98.35, number of roots was 4.25-10.75, shoot wet weight 5.40-131.55 mg, root wet weight 3.03-104.28, shoot dry weight ratio was 5.95-27.42%, and root dry weight ratio was 1.37-15.13%. The biplot analysis results showed that the Vasco variety had the best quality of seedlings in growth media numbers 13 and 18. The evaluation of growth media's quality, economically and ecologically, showed that growth media number 13 was the best media, and media numbers 18 and 19 could be used as alternatives.

PERTUMBUHAN DAN HASIL SAWI (Brassica juncea) DENGAN KOMBINASI BAHAN ORGANIK BERBAHAN AMPAS TEBU PADA DUA PERIODE TANAM

Mustard greens is a type of leaf vegetable that is favored by consumers because it contains high levels of pro-vitamin A and ascorbic acid which are beneficial for health. However, the production of mustard greens is still relatively low due to the limited availability of fertilizers. Bagasse is the first waste produced from the industrial processing of sugar cane, the volume reaches 30 - 34% of milled sugar cane. This research was conducted in the experimental field of Ratu Samban University. The purpose of this study was to determine the growth and yield of mustard greens against a combination of organic matter made from bagasse in two planting periods. This study used a single factor Completely Randomized Block Design (RAKL) with 10 replications. The treatment used in this study consisted of 4 levels, namely: P0 = control without treatment, P1 = 200g bagasse + 75g chicken manure, P2 = 250g bagasse + 50g chicken manure, P3 = 300g bagasse + 25g chicken manure. The results showed that the planting of the first and second periods, all treatments, namely P0, P1, P2, P3 had a very significant effect on all observation variables at all plant ages. P3 treatment (300g bagasse + 25g chicken manure) gave the best results on all variables observed yotu plant height, number of leaves, plant production, shoot wet weight, and root wet weight.

Testing the Effectiveness of Azotobacter Bacteria and Organic Materials on the Growth, Production, Assembly of Plant N and Soil N Availability in Kailan Plants (Brassica Oleraceae)

The attractiveness of organic agriculture, has high economic and social value, low production of organic kailan horticultural commodities causes market demand not to be fulfilled. Efforts that can be applied and applied to support the growth and development of kailan plants are the use of the Bacteria Azotobacter sp. This study aims to determine the effect of the inoculation of the Azotobacter sp. The administration of organic matter and the interaction between the inoculation of Azotobacter. sp and the provision of organic matter on the growth, production and uptake of plant N and soil N availability in kailan plants. The design used in this study was a 2-factor factorial Completely Randomized Design (CRD). The first factor was the isolation of Azotobacter sp consisting of 3 levels, namely, a dose of 0 ml, 10 ml and 20 ml. The second factor is the provision of organic material in the form of goat manure which consists of 2 levels, namely, without giving organic material and giving 100 gr of organic material. From the results of data analysis, it was found that the inoculation of bacteria had an Azotobacter sp effect on the growth and production and uptake of plant N in kailan plants, it could be seen in the parameters of plant height, number of leaves, stem diameter, leaf area, shoot wet weight, and plant N uptake. Organic matter affects the growth and production as well as plant N uptake and soil N availability in kailan plants, this can be seen in the parameters of plant height, number of leaves, stem diameter, leaf area, crown weight, shoot dry weight, plant N uptake and availability. N land. The interaction between Bacterial inoculation Azotobacter sp. and organic matter affects plant growth and production, including plant height, leaf area and plant N uptake.

Pengaruh Perbandingan Komposisi Media Tanah Pasca Tambang dengan Pembenah Tanah Faba terhadap Kemasaman Tanah dan Pertumbuhan Land Cover Crop (Pueraria javanicum)

The higher the use of coal in the industry, the higher the waste produced. This causes environmental problems such as air, soil, water pollution and a decrease in the quality of ecosystems and public health in industrial environments. For this reason, it is necessary to make efforts to utilize coal waste so that unwanted things do not occur, one of which is by using coal ash waste as a soil repairer to improve soil quality in post-mining land. This experiment was carried at the Faculty of Agriculture screenhouse, Winaya Mukti University, Tanjungsari, Sumedang Regency on the altitude of 850 M above sea level. The trial period is from Jully to August 2020. The experiment aims to determine the effect of comparisons of post-mining soil media composition with Faba fixer on the value of growth of Pueraria javanicum plants. The experimental design used was a randomized block design (RBD) which consisted of five treatments and was repeated five times. Treatment is the ratio of Fla Ash Bottom Ash soil repairer and post-mining soil with the following dosages; A = 100% post-mining soil, B = 25% Faba soil repairer + 75% post-mining soil, C = 50% Faba soil repairer + 50% post-mining soil, D = 75% Faba soil repairer + 25% post-mining soil, E = 100% Faba soil repairer. The results showed that treatment C (50% Faba soil repairer + 50% soil) had a good effect on plant height and shoot wet weight, treatment D (75% Faba soil repairer + 25% soil) had a good effect on the number of leaves, root length, number of effective nodules, and root wet weight of Pueraria javanicum plants.

PENGARUH LAMA PERENDAMAN AIR KELAPA MUDA TERHADAP PERTUMBUHAN STEK BIBIT VANILI (Vanilla planifolia Andrews)

This study was conducted to determine the appropriate duration of immersion in young coconut water on the growth of vanilla seed cuttings. This research was conducted at the Payakumbuh State Agricultural Polytechnic Experimental Garden in March – June 2021. The experiment used a one-factor completely randomized design (CRD) with five replications. The experimental units were five levels of immersion time, 2 hours of immersion (P1), 4 hours of immersion (P2), 6 hours of immersion (P3), 8 hours of immersion (P4), and 10 hours of immersion (P5). Parameters observed were shoot emergence, root emergence, internode growth, shoot diameter, root wet weight, and shoot wet weight. The results showed that the immersion time of young coconut water with 10 hours of immersion (P5) was able to produce better seedling growth compared to other treatments in each parameter of observation.

Production and effect of vermiwash singly and in combination with vermicompost on the growth, development and productivity of tomato in the greenhouse in Suriname

Abstract. Awadhpersad VRR, Ori L, Ansari A. 2021. Production and effect of vermiwash singly and in combination with vermicompost on the growth, development, and productivity of tomatoes in the greenhouse in Suriname. Asian J Agric 5: 29-34. In Suriname farmers often largely rely on high inputs of synthetic fertilizers and pesticides to achieve high yield. To overcome this, sustainable agriculture seeks to introduce agricultural practices that are environmentally sound, economically viable, and socially supportive. In the present study, the effect of vermicompost and vermiwash and in combination was evaluated on the growth and yield of tomato (Lycopersicon esculentum Mill.) in the greenhouse. The experiment was a Randomized Block Design with four treatments and three replications. The growth parameters were measured for plant height, shoot wet and dry weight, root weight, and length, and yield in terms of the number of fruits and fruit weight. The produced vermiwash was a brownish colored liquid and had all the essential macro and micro plant nutrients, which indicates an environmentally friendly enriched nutrient liquid fertilizer for sustainable agriculture. The research results at harvest time indicated that the plant height, shoot fresh and dry weight, root weight, root density, root length, yield and fruit weight were higher for the plants treated with a combination of vermicompost and vermiwash. It was also noted that the flowering and fruiting ratio were significantly enhanced by application of vermiwash as a foliar spray. The combination of vermicompost and vermiwash (50 g + 50 mL) significantly (p < 0.05) resulted in the highest yielding plants, followed by vermiwash (100 mL) and vermicompost (100 g).

Revegetation of Critical Land with Gaharu (Aquilaria malaccensis) under Various Ameliorants Application

Rehabilitation of post-mining limestone soils is often a challenge due to a lack of nutrients and poor soil humus. The research aims to study the effect of various ameliorants on soil chemical properties, growth, and P uptake of gaharu plant (Aquilaria malaccensis) in post-mining limestone soil for revegetation of critical land. The research was conducted in a Completely Randomized Design with three replications. The treatments were P0 (Control, without ameliorant); P1 (Humic Acid, HA, 4 kg ha-1 ); P2 (Phosphate Rocks, PR, 350 kg ha-1 ); P3 (Vesicular Arbuscular Mycorrhizal Fungi, AMF, 500 spores plant-1 ); P4 (HA+AMF); P5 (PR+AMF); and P6 (HA+PR+AMF). Data were analyzed using ANOVA at 95% confidence level and continued with the LSD test. The use of various types of ameliorants (HA, RP, and AMF) significantly increased root length, root volume, wet and dry weight of roots, shoot wet and dry weight, and P uptake of gaharu tree. The best ameliorant in increasing gaharu tree growth was AMF (P3) treatment, and AMF combined with HA (P4) treatment. Thus, for revegetation of critical land, especially post-mining limestone land, using gaharu tree requires HA and AMF inoculation.

Growth response of patchouli (Pogostemon cablin Benth.) with coconut husk composting and coconut soaking concentration.

Along with the increasing demand for patchouli oil, it is necessary to endeavor a sustainable production system that can guarantee the demand and quality of patchouli oil that meets export standards. This research aim was to determine the patchouli growth response on the application of coconut fiber compost and the coconut water concentrate. This research was carried out in the Medan Sampali Subdistrict community area, Medan, which is ± 32 meters above sea level, from August to October 2017. This research used a randomized block design with 2 factors and 3 replications. The first factor was coconut fiber compost (0; 250; 500; and 750 g / polybag) and the second factor was the coconut water concentrate (0%; 25%; 50%; 75% and 100%) and further testing on randomized block design at the level of α = 5%. The research results showed that the treatment of coconut fiber compost had a significant effect on the number of shoots, shoot length, shoot wet weight, root wet weight, root volume, shoot dry weight, and root dry weight. The treatment of coconut water concentrate immersion significantly affected the percentage of live cuttings, the number of shoots, shoot wet weight, and root wet weight. The interaction between the two treatments did not significantly affect the number of shoots, shoot wet weight, and root wet weight. With the best dose of coconut fiber compost of 750 g / polybag and 50% coconut water concentrate.