Shonry Roy KH Malem Tarigan, Umi Kusumastuti Rusmarini, Titin Setyorini
The aims of this research was to determine the impact of chicken manure and P fertilizer on the development and production of cauliflower. This research was done from February to April 2023 in Pakis, Magelang This study used a completely randomized design (CRD) which includes 2 factors. Factor A uses chicken manure with a measurement of 3 types, such as 200 g, 400 g, 600 g. Factor B uses P fertilizer with a dose of 3 types, such as 20 g, 30 g, 40 g. Each treatment combination was repeated 3 times. The research data using a real level analysis of 5%. If there is a significant difference in the treatment, it will be held using the Duncan Multiple Range Test. The results of the study explained that there was an interaction in the dose of chicken manure with P fertilizer on the parameters of flower circle. The best treatment combination for flower circle parameters was 400g of chicken manure and 40g of P fertilizer. The application of chicken manure with doses of 200g, 400g, and 600g produced a similar effect on the development and production of cauliflower. The application of P fertilizer at a doses of 20g, 30g, 40g have produced the same a similar effect on the growth and yield of cauliflower.
{"title":"Pengaruh Pupuk Kandang Ayam dan Pupuk P terhadap Pertumbuhan dan Hasil Kubis Bunga (Brassica oleracea L. var. botrytis)","authors":"Shonry Roy KH Malem Tarigan, Umi Kusumastuti Rusmarini, Titin Setyorini","doi":"10.55180/agi.v8i1.763","DOIUrl":"https://doi.org/10.55180/agi.v8i1.763","url":null,"abstract":"The aims of this research was to determine the impact of chicken manure and P fertilizer on the development and production of cauliflower. This research was done from February to April 2023 in Pakis, Magelang This study used a completely randomized design (CRD) which includes 2 factors. Factor A uses chicken manure with a measurement of 3 types, such as 200 g, 400 g, 600 g. Factor B uses P fertilizer with a dose of 3 types, such as 20 g, 30 g, 40 g. Each treatment combination was repeated 3 times. The research data using a real level analysis of 5%. If there is a significant difference in the treatment, it will be held using the Duncan Multiple Range Test. The results of the study explained that there was an interaction in the dose of chicken manure with P fertilizer on the parameters of flower circle. The best treatment combination for flower circle parameters was 400g of chicken manure and 40g of P fertilizer. The application of chicken manure with doses of 200g, 400g, and 600g produced a similar effect on the development and production of cauliflower. The application of P fertilizer at a doses of 20g, 30g, 40g have produced the same a similar effect on the growth and yield of cauliflower.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":" 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hendra Ardi Susanto, Achmad Himawan, E. N. Kristalisasi
This research aims to determine the survey location and symptoms of F. oxysporum wilt on melon plants, how to take samples of plants with symptoms of F. oxysporum wilt, isolate the F. oxysporum fungus in the laboratory, inoculate F. oxysporum fungal spores onto melon plants, incubation period and percentage disease attacks after inoculation of F. oxysporum fungal spores, melon fruit weight and net pattern of melon fruit. This research was carried out at Greenhouse Lahan Indonesia (LI), Maguwoharjo Village, Depok District, Sleman Regency, Yogyakarta Special Region. The research was conducted from April to June 2023. The research used descriptive and quantitative methods to study, describe, explain and describe the objects studied. The research sample plants were 26 plants, namely 5 plants as controls, 21 plants were inoculated with F. oxysporum fungal spores. Location of survey for Fusarium oxysporum wilt symptoms in the Plataran Greenhouse, Selomartani Village, Kalasan District, Sleman Regency, DI Yogyakarta. The survey results showed that there were melon plants that had symptoms of F. oxysporum wilt. The percentage of melon plants affected is 40% of the total plant population. Sampling of melon plant stems with symptoms of F. oxysporum wilting was taken 20 cm from the soil surface and cut to a length of 10 cm. Take 2 plants that experience symptoms of F. oxysporum wilt. Isolation of F. oxysporum fungus using PDA media in a petri dish. Fungal colonies and macroconidia were found which are characteristic of F. oxysporum fungal spores which are shaped like a crescent moon. Inoculation of fungal spores on melon plant stems can cause healthy plants to become sick. On the 10th day there were 2 or 9% of plants showing symptoms of F. oxysporum wilting. There were differences in the weight and net pattern of melon fruit on control plants compared to test plants.
本研究旨在确定甜瓜植株上牛孢镰刀菌枯萎病的调查地点和症状、如何对出现牛孢镰刀菌枯萎病症状的植株进行取样、在实验室中分离牛孢镰刀菌真菌、将牛孢镰刀菌真菌孢子接种到甜瓜植株上、牛孢镰刀菌真菌孢子接种后的潜伏期和发病率、甜瓜果实重量和甜瓜果实净型。这项研究是在日惹特区斯莱曼县德波克区马古沃哈尔乔村的印度尼西亚拉汉温室（LI）进行的。研究时间为 2023 年 4 月至 6 月。研究采用描述性和定量方法对研究对象进行研究、描述、解释和说明。研究样本植物为 26 株，其中 5 株作为对照，21 株接种了 F. oxysporum 真菌孢子。调查地点为日惹省 Sleman 县 Kalasan 区 Selomartani 村 Plataran 温室。调查结果显示，有一些甜瓜植株出现了草孢镰刀菌枯萎病的症状。受影响的甜瓜植株占植株总数的 40%。在距离土壤表面 20 厘米处对出现 F. oxysporum 枯萎症状的甜瓜植株茎部进行取样，并剪成 10 厘米长。取 2 株出现 F. oxysporum 枯萎症状的植株。在培养皿中使用 PDA 培养基分离 F. oxysporum 真菌。发现真菌菌落和大孢子器，这是草孢子菌真菌孢子的特征，形状像新月。将真菌孢子接种到甜瓜植株茎上会导致健康植株生病。在第 10 天，有 2% 或 9% 的植株出现 F. oxysporum 枯萎症状。与试验植株相比，对照植株瓜果的重量和净形存在差异。
{"title":"Kajian Penyakit Layu Fusarium oxysporum pada Tanaman Melon (Cucumis melo L.) Hidroponik di Greenhouse","authors":"Hendra Ardi Susanto, Achmad Himawan, E. N. Kristalisasi","doi":"10.55180/agi.v7i2.838","DOIUrl":"https://doi.org/10.55180/agi.v7i2.838","url":null,"abstract":"This research aims to determine the survey location and symptoms of F. oxysporum wilt on melon plants, how to take samples of plants with symptoms of F. oxysporum wilt, isolate the F. oxysporum fungus in the laboratory, inoculate F. oxysporum fungal spores onto melon plants, incubation period and percentage disease attacks after inoculation of F. oxysporum fungal spores, melon fruit weight and net pattern of melon fruit. This research was carried out at Greenhouse Lahan Indonesia (LI), Maguwoharjo Village, Depok District, Sleman Regency, Yogyakarta Special Region. The research was conducted from April to June 2023. The research used descriptive and quantitative methods to study, describe, explain and describe the objects studied. The research sample plants were 26 plants, namely 5 plants as controls, 21 plants were inoculated with F. oxysporum fungal spores. Location of survey for Fusarium oxysporum wilt symptoms in the Plataran Greenhouse, Selomartani Village, Kalasan District, Sleman Regency, DI Yogyakarta. The survey results showed that there were melon plants that had symptoms of F. oxysporum wilt. The percentage of melon plants affected is 40% of the total plant population. Sampling of melon plant stems with symptoms of F. oxysporum wilting was taken 20 cm from the soil surface and cut to a length of 10 cm. Take 2 plants that experience symptoms of F. oxysporum wilt. Isolation of F. oxysporum fungus using PDA media in a petri dish. Fungal colonies and macroconidia were found which are characteristic of F. oxysporum fungal spores which are shaped like a crescent moon. Inoculation of fungal spores on melon plant stems can cause healthy plants to become sick. On the 10th day there were 2 or 9% of plants showing symptoms of F. oxysporum wilting. There were differences in the weight and net pattern of melon fruit on control plants compared to test plants.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"38 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139003502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liquid organic fertilizer provides nutrients, increases good microorganisms and improves the physical properties of the soil, especially when used in oil palm nurseries. This research was conducted with the aim of determining the effect of providing liquid organic fertilizer and NPK on the growth of oil palm seedlings in the pre-nursery. This research uses a factorial experimental method arranged in a Completely Randomized Design (CRD) consisting of two factors. The first factor is liquid organic fertilizer which consists of 4 levels, namely Control/no fertilizer, 3 ml, 5 ml 8 ml. The second factor is NPK which consists of 4 levels, namely N1: Control/no fertilizer, N2: 1 g/plant, N3: 2 g/plant, N4: 3 g/plant. Each treatment was repeated 5 times. The data obtained were analyzed using Analysis of Variance (anova) with a level of 5%. Data that were significantly different were further tested with DMRT at a level of 5%. The results showed that there was a real interaction between liquid organic fertilizer and NPK on stem diameter. The best growth of oil palm seedlings at a dose of 1 g NPK fertilizer with 8 ml liquid organic fertilizer showed a value of 7.06 mm, a 2 g dose of NPK with a control liquid organic fertilizer showed a value of 7.02 mm, a 2 g dose of NPK and a dose of liquid organic fertilizer 3 ml shows a value of 7.00 mm. Real interaction between liquid organic fertilizer and NPK on crown fresh weight diameter. NPK at a dose of 1 g and POC at a dose of 3 ml showed a value of 6.46 g. Providing liquid organic fertilizer did not have a real effect on oil palm seedlings, while NPK at a dose of 1 g/plant had an effect on oil palm seedlings.
{"title":"Kombinasi Pupuk Organik Cair dan NPK: Sebagai Booster Pertumbuhan Bibit Kelapa Sawit di Pre Nursery","authors":"Ramona Manurung, Wiwin dyah Ully Parwati, R. Syah","doi":"10.55180/agi.v7i2.456","DOIUrl":"https://doi.org/10.55180/agi.v7i2.456","url":null,"abstract":"Liquid organic fertilizer provides nutrients, increases good microorganisms and improves the physical properties of the soil, especially when used in oil palm nurseries. This research was conducted with the aim of determining the effect of providing liquid organic fertilizer and NPK on the growth of oil palm seedlings in the pre-nursery. This research uses a factorial experimental method arranged in a Completely Randomized Design (CRD) consisting of two factors. The first factor is liquid organic fertilizer which consists of 4 levels, namely Control/no fertilizer, 3 ml, 5 ml 8 ml. The second factor is NPK which consists of 4 levels, namely N1: Control/no fertilizer, N2: 1 g/plant, N3: 2 g/plant, N4: 3 g/plant. Each treatment was repeated 5 times. The data obtained were analyzed using Analysis of Variance (anova) with a level of 5%. Data that were significantly different were further tested with DMRT at a level of 5%. The results showed that there was a real interaction between liquid organic fertilizer and NPK on stem diameter. The best growth of oil palm seedlings at a dose of 1 g NPK fertilizer with 8 ml liquid organic fertilizer showed a value of 7.06 mm, a 2 g dose of NPK with a control liquid organic fertilizer showed a value of 7.02 mm, a 2 g dose of NPK and a dose of liquid organic fertilizer 3 ml shows a value of 7.00 mm. Real interaction between liquid organic fertilizer and NPK on crown fresh weight diameter. NPK at a dose of 1 g and POC at a dose of 3 ml showed a value of 6.46 g. Providing liquid organic fertilizer did not have a real effect on oil palm seedlings, while NPK at a dose of 1 g/plant had an effect on oil palm seedlings.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"2 27","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139006808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Environmental conditions can affect insect diversity. Different plantation conditions give rise to changes in the composition of insects. The study aims to determine the diversity of insects in high and low topography. The research was conducted at PT. Djuandasawit Lestari, Muara Tawas Estate located in Musi Rawas, South Sumatra, from December 2022 to March 2023. The study used purposive sampling methods that are descriptive and exploratory. The study used 2 plantation blocks R58 and Q59), each block has a high and low topographic area. Each block made 10 observation plots with a size of 5 x 5 meters spread in five plots for low and high areas by taking into account the diversity of vegetation. Each research plot was installed with 4 traps, namely pan trap, pitfall trap, sticky trap and sweep net for 10 days of observation. The insects were identified their classification, and diversity index calculated by the Shannon-Wienner and Simpson dominance. The results showed that the abundance of insects in low-level topography was more than in high-altitude topography. A total of 708 individuals were found spread across 12 orders and 27 families in low topography, while in high topography only 537 individuals were found spread across 12 orders and 26 families. The index of insect dominance in lowly and high areas is low. The insects found are mostly predatory insects.
{"title":"Studi Komparasi Keanekaragaman Serangga di Kebun Kelapa Sawit pada Topografi Tinggi dan Rendahan","authors":"Hadi Santoso, I. Santi, Samsuri Tarmadja","doi":"10.55180/agi.v7i2.736","DOIUrl":"https://doi.org/10.55180/agi.v7i2.736","url":null,"abstract":"Environmental conditions can affect insect diversity. Different plantation conditions give rise to changes in the composition of insects. The study aims to determine the diversity of insects in high and low topography. The research was conducted at PT. Djuandasawit Lestari, Muara Tawas Estate located in Musi Rawas, South Sumatra, from December 2022 to March 2023. The study used purposive sampling methods that are descriptive and exploratory. The study used 2 plantation blocks R58 and Q59), each block has a high and low topographic area. Each block made 10 observation plots with a size of 5 x 5 meters spread in five plots for low and high areas by taking into account the diversity of vegetation. Each research plot was installed with 4 traps, namely pan trap, pitfall trap, sticky trap and sweep net for 10 days of observation. The insects were identified their classification, and diversity index calculated by the Shannon-Wienner and Simpson dominance. The results showed that the abundance of insects in low-level topography was more than in high-altitude topography. A total of 708 individuals were found spread across 12 orders and 27 families in low topography, while in high topography only 537 individuals were found spread across 12 orders and 26 families. The index of insect dominance in lowly and high areas is low. The insects found are mostly predatory insects.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"33 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138592201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Galih Valerianifo, Hangger Gahara Mawandha, E. N. Kristalisasi
Pre-nursery is one of the important stages in preparing oil palm planting materials. PGPR (Plant Growth Promoting Rhizobacteria) are beneficial bacteria for plants that colonize around plant roots. Leri water is one of the by-products of household activities that contain beneficial properties for plants. This study aims to determine the application of PGPR and air leri on the growth of oil palm seedlings in pre-nursery and to determine the interaction between the application of PGPR and air leri on the growth of oil palm seedlings in the pre-nursery. This research was conducted from February to July to October 2022 in Maguwoharjo Village, Sleman, Yogyakarta. The study used an experimental method which was arranged in a completely randomized design (CRD) consisting of two factors. The first factor is the PGPR application, which consists of four levels, namely 0 ml, 10 ml, 20 ml, and 30 ml. The second factor is the application of leri water consisting of three levels, namely every 2 days, 4 days, and 6 days. Observations were analyzed using variance at the 5% level of significance. If there is a significant difference then proceed with Duncan's multiple range test at the 5% level of significance. The results showed that there was an interaction between the application of PGPR and leri water on seedling height, stem diameter, number of leaves, root length, root volume, and shoot fresh weight, crown dry weight, root dry weight, plant fresh weight, and plant dry weight. Whereas in the application of PGPR and leri water to root fresh weight there was no interaction and each treatment was not significantly different.
{"title":"Pengaruh Aplikasi PGPR (Plant Growth Promoting Rhizobacteria) dan Air Leri terhadap Pertumbuhan Bibit Kelapa Sawit di Pre Nursery","authors":"Galih Valerianifo, Hangger Gahara Mawandha, E. N. Kristalisasi","doi":"10.55180/agi.v7i1.574","DOIUrl":"https://doi.org/10.55180/agi.v7i1.574","url":null,"abstract":"Pre-nursery is one of the important stages in preparing oil palm planting materials. PGPR (Plant Growth Promoting Rhizobacteria) are beneficial bacteria for plants that colonize around plant roots. Leri water is one of the by-products of household activities that contain beneficial properties for plants. This study aims to determine the application of PGPR and air leri on the growth of oil palm seedlings in pre-nursery and to determine the interaction between the application of PGPR and air leri on the growth of oil palm seedlings in the pre-nursery. This research was conducted from February to July to October 2022 in Maguwoharjo Village, Sleman, Yogyakarta. The study used an experimental method which was arranged in a completely randomized design (CRD) consisting of two factors. The first factor is the PGPR application, which consists of four levels, namely 0 ml, 10 ml, 20 ml, and 30 ml. The second factor is the application of leri water consisting of three levels, namely every 2 days, 4 days, and 6 days. Observations were analyzed using variance at the 5% level of significance. If there is a significant difference then proceed with Duncan's multiple range test at the 5% level of significance. The results showed that there was an interaction between the application of PGPR and leri water on seedling height, stem diameter, number of leaves, root length, root volume, and shoot fresh weight, crown dry weight, root dry weight, plant fresh weight, and plant dry weight. Whereas in the application of PGPR and leri water to root fresh weight there was no interaction and each treatment was not significantly different.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130909169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Roy Leonardo Lumban Batu, Suprih Wijayani, Pauliz Budi Hastuti
The development of oil palm plantations begins with the procurement of quality seeds. This effort is carried out through the use of mycorrhizal fungi as biological fertilizers and and improvement of seedling planting media. This study aims to determine the effect of mycorrhiza dose with the mixed composition of rice husk charcoal and top soil on the growth of oil palm seedlings in the pre-nursery. This research was a factorial experiment arranged in a completely randomized design. The composition of the planting medium consists of four levels: top soil, 25% husk charcoal with 75% humus, 50% husk charcoal plus 50% top soil, and 100% husk charcoal solely. The dose of mycorrhizal biofertilizer consists of three levels, namely: 0.5 and 10 grams per seed. The results of this study indicated that the composition of the media or the application of mycorrhizal biofertilizers had no significant effect on the growth of oil palm seedlings in prenursery. The largest seedling leaf area was produced by seedlings planted on media containing husk charcoal which was given 10 grams of mycorrhizal biofertilizer.
{"title":"Pengaruh Dosis Mikoriza dan Komposisi Media Tanam terhadap Pertumbuhan Bibit Kelapa Sawit di Pre Nursery","authors":"Roy Leonardo Lumban Batu, Suprih Wijayani, Pauliz Budi Hastuti","doi":"10.55180/agi.v7i1.580","DOIUrl":"https://doi.org/10.55180/agi.v7i1.580","url":null,"abstract":"The development of oil palm plantations begins with the procurement of quality seeds. This effort is carried out through the use of mycorrhizal fungi as biological fertilizers and and improvement of seedling planting media. This study aims to determine the effect of mycorrhiza dose with the mixed composition of rice husk charcoal and top soil on the growth of oil palm seedlings in the pre-nursery. This research was a factorial experiment arranged in a completely randomized design. The composition of the planting medium consists of four levels: top soil, 25% husk charcoal with 75% humus, 50% husk charcoal plus 50% top soil, and 100% husk charcoal solely. The dose of mycorrhizal biofertilizer consists of three levels, namely: 0.5 and 10 grams per seed. The results of this study indicated that the composition of the media or the application of mycorrhizal biofertilizers had no significant effect on the growth of oil palm seedlings in prenursery. The largest seedling leaf area was produced by seedlings planted on media containing husk charcoal which was given 10 grams of mycorrhizal biofertilizer.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"30 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134485603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sofiatul Milah, Lili Sugiyarto, Suyitno Ratnawati, Aloysius, Ixora Sartika, Mercuriani, Fmipa Jurusan Pendidikan Biologi, Universitas Negeri
This research aims to determine optimum combination of addition 2-iP and 2,4-D with different concentration and the nodus position for induction Dendrobium Red Emperor ‘Prince’ axial shoots. The research employed a CFR design with two factors, namely: variation of combined concentration 2-iP and 2,4-D (A: 1 ppm 2-iP + 2 ppm 2,4-D; B: 2 ppm 2-iP + 1,5 ppm 2,4-D; C: 3 ppm 2-iP + 1 ppm 2,4-D; D: 4 ppm 2-iP + 0,5 ppm 2,4-D) each treatment was repeated 6 times and the nodal position (top, middle, bottom). The basic medium is NP+CW. The axillary bud growth is measured based on the time of bud emerge, shoot growth, explant percentage which form axillary bud, root growth, and plantlet wet weight. Data obtained were analyzed using ANOVA and continued with DMRT 5%. Results show that B treatment give fastest bud emerging time, and highest stem diameter, buds height, leaves length, leaves width, roots length. A treatment shows best results on shoots number, plantlet wet weight, number of leaves, and number of roots. The optimum combined concentration of 2-iP and 2,4-D to induce axillary shoots is 2 ppm 2-iP + 1,5 ppm 2,4-D, whilst best nodus position is the top one.
{"title":"Optimasi Induksi Tunas Aksiler Dendrobium nobile Melalui Kombinasi 2-iP dan 2,4-D In Vitro","authors":"Sofiatul Milah, Lili Sugiyarto, Suyitno Ratnawati, Aloysius, Ixora Sartika, Mercuriani, Fmipa Jurusan Pendidikan Biologi, Universitas Negeri","doi":"10.55180/agi.v7i1.613","DOIUrl":"https://doi.org/10.55180/agi.v7i1.613","url":null,"abstract":"This research aims to determine optimum combination of addition 2-iP and 2,4-D with different concentration and the nodus position for induction Dendrobium Red Emperor ‘Prince’ axial shoots. The research employed a CFR design with two factors, namely: variation of combined concentration 2-iP and 2,4-D (A: 1 ppm 2-iP + 2 ppm 2,4-D; B: 2 ppm 2-iP + 1,5 ppm 2,4-D; C: 3 ppm 2-iP + 1 ppm 2,4-D; D: 4 ppm 2-iP + 0,5 ppm 2,4-D) each treatment was repeated 6 times and the nodal position (top, middle, bottom). The basic medium is NP+CW. The axillary bud growth is measured based on the time of bud emerge, shoot growth, explant percentage which form axillary bud, root growth, and plantlet wet weight. Data obtained were analyzed using ANOVA and continued with DMRT 5%. Results show that B treatment give fastest bud emerging time, and highest stem diameter, buds height, leaves length, leaves width, roots length. A treatment shows best results on shoots number, plantlet wet weight, number of leaves, and number of roots. The optimum combined concentration of 2-iP and 2,4-D to induce axillary shoots is 2 ppm 2-iP + 1,5 ppm 2,4-D, whilst best nodus position is the top one.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133297888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Imam Prasetyo, Sri Manu Rohmiyati, Herry Wirianata
Solid decanter is one of the by-products from palm oil mills, which have not used as much as empty fruit bunches. The purpose of this study was to determine the effect of solid decanter as a mixture of nursery media and NPK doses on the increament growth of oil palm seedlings in the main nursery (MN). This study used a factorial experiment with a completely randomized design. Solid mixture: soil consisting of: 0: 1, 1: 3; 1:2, and 1 : 1 (volume/volume) of decanter solid. NPK fertilizer rate consist of: 23, 46, 69, and 92 g/seedling. There were 16 treatment combinations with four replications. The results showed that mixing solid in the media resulted in the growth increament of oil palm seedlings in MN which was the similar as soil media solely. However, the root system of these seedlings is more developed in soil media than in media containing solid decanters. While the difference in NPK rates results in the similar growth increament of oil palm seedlings.
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This study aims to determine the growth response of oil palm seedlings in the pre nursery to the type and time interval of urine aplication. The research was conducted at Kebun Pendidikan dan Penelitian Institut Pertanian Stiper Yogyakarta, Maguwoharjo, Depok, Sleman, Yogyakarta Special Region. This research was conducted from November 2022 to January 2023. The study used a factorial experimental design and a completely randomized design (CRD) consisting of two factors. The first factor which consist of four levels namely control (NPK, N), cow urine, goat urine and rabbit urine. The second factor which consist of three levels namely once every three days, once every five days and once every seven days. There were twelve treatment combinations and repeated five times so that there were sixty plant samples. Using ANOVA (Analysis of Variance) with a significance level of five percent this data was analyzed. Futher test using DMRT (Duncan Multiple Range Test) with a significance level of five percent if there is a significant difference. There was an interaction between the type dan time interval of urine aplication on shoot fresh weight and shoot dry weight. Control (NPK, N) and type of urine had the same effect, meaning that livestock urin could replace chemical fertilizers (NPK, N). The time inteval for giving urine once every seven days was the best compared to once every three days and once every five days.
本研究旨在确定苗圃前油棕幼苗对施尿类型和时间间隔的生长响应。该研究在Kebun Pendidikan dan Penelitian Institut Pertanian Stiper Yogyakarta, Maguwoharjo, Depok, Sleman, Yogyakarta特区进行。这项研究于2022年11月至2023年1月进行。本研究采用因子试验设计和完全随机设计(CRD)。第一个因子由4个水平组成，即对照(氮磷钾、氮)、牛尿、山羊尿和兔尿。第二个因素包括三个级别，即每三天一次，每五天一次和每七天一次。共有12个处理组合，重复5次，共60个植物样品。使用方差分析(ANOVA)，显著性水平为5%，对该数据进行分析。如果存在显著性差异，则使用DMRT(邓肯多重范围测试)进行进一步测试，显著性水平为5%。施尿方式和施尿时间间隔对地上部鲜重和地上部干重有交互作用。对照(NPK, N)和尿液类型具有相同的效果，即家畜尿液可以替代化肥(NPK, N)。与每3天一次和每5天一次相比，每7天一次的尿液间隔时间最好。
{"title":"Respon Pertumbuhan Bibit Kelapa Sawit di Pre Nursery terhadap Macam dan Interval Waktu Pemberian Urin","authors":"Fajar Khoerudin, Wiwin dyah Ully Parwati, Achmad Himawan","doi":"10.55180/agi.v7i1.395","DOIUrl":"https://doi.org/10.55180/agi.v7i1.395","url":null,"abstract":"This study aims to determine the growth response of oil palm seedlings in the pre nursery to the type and time interval of urine aplication. The research was conducted at Kebun Pendidikan dan Penelitian Institut Pertanian Stiper Yogyakarta, Maguwoharjo, Depok, Sleman, Yogyakarta Special Region. This research was conducted from November 2022 to January 2023. The study used a factorial experimental design and a completely randomized design (CRD) consisting of two factors. The first factor which consist of four levels namely control (NPK, N), cow urine, goat urine and rabbit urine. The second factor which consist of three levels namely once every three days, once every five days and once every seven days. There were twelve treatment combinations and repeated five times so that there were sixty plant samples. Using ANOVA (Analysis of Variance) with a significance level of five percent this data was analyzed. Futher test using DMRT (Duncan Multiple Range Test) with a significance level of five percent if there is a significant difference. There was an interaction between the type dan time interval of urine aplication on shoot fresh weight and shoot dry weight. Control (NPK, N) and type of urine had the same effect, meaning that livestock urin could replace chemical fertilizers (NPK, N). The time inteval for giving urine once every seven days was the best compared to once every three days and once every five days.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126023777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
La Nina is a climate anomaly that can cause extreme weather. La Nina is marked by a decrease in the sea surface temperature of the Pacific Ocean at the equator. La Nina can cause a prolonged rainy season for Asia including Indonesia. From mid-2020 to the end of 2022, Indonesia has experienced La Nina events. This study aims to determine changes in rainfall patterns and the number of rainy days during La Nina events. This research was conducted descriptively, using Pacific Ocean sea surface temperature (SST) data and rain data originating from the BMKG Climatology Station of Sultan Syarif Kasim II Pekanbaru from data for the last 10 years 2013-2022. The results of the study show that La Nina occurred from October 2020 to December 2022 with a weak to moderate level of La Nina strength. La Nina has increased the amount of rainfall 54-90% from normal conditions and increased the number of rainy days 11-70% compared to climate with normal conditions. Monthly rainfall is in the low to high category, while daily rainfall is included in the heavy rain category. The La Nina event has caused a prolonged rainy season for almost 3 years and has increased the amount of rainfall and rainy days.
{"title":"Dampak La Nina 2021-2022 terhadap Peningkatan Curah Hujan","authors":"Wandi Nusa Harahap, Betti Yuniasih, S. Gunawan","doi":"10.55180/agi.v7i1.364","DOIUrl":"https://doi.org/10.55180/agi.v7i1.364","url":null,"abstract":"La Nina is a climate anomaly that can cause extreme weather. La Nina is marked by a decrease in the sea surface temperature of the Pacific Ocean at the equator. La Nina can cause a prolonged rainy season for Asia including Indonesia. From mid-2020 to the end of 2022, Indonesia has experienced La Nina events. This study aims to determine changes in rainfall patterns and the number of rainy days during La Nina events. This research was conducted descriptively, using Pacific Ocean sea surface temperature (SST) data and rain data originating from the BMKG Climatology Station of Sultan Syarif Kasim II Pekanbaru from data for the last 10 years 2013-2022. The results of the study show that La Nina occurred from October 2020 to December 2022 with a weak to moderate level of La Nina strength. La Nina has increased the amount of rainfall 54-90% from normal conditions and increased the number of rainy days 11-70% compared to climate with normal conditions. Monthly rainfall is in the low to high category, while daily rainfall is included in the heavy rain category. The La Nina event has caused a prolonged rainy season for almost 3 years and has increased the amount of rainfall and rainy days.","PeriodicalId":186259,"journal":{"name":"AGROISTA : Jurnal Agroteknologi","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116521976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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