scholarly journals EFEKTIFITAS FUNGI MIKORIZA ARBUSKULA (FMA) SERTA PUPUK NITROGEN DAN FOSFAT TERHADAP PERTUMBUHAN SEMAI JABON (Anthocephallus cadamba Roxb.) Effectiveness of Arbuscula Mycorrhizal Fungi (AMF) Nitrogen and Phosphate Fertilizer toward Jabon ........

2017 ◽  
Vol 8 (1) ◽  
pp. 20-25
Author(s):  
Fransisca Yosina Regina Luturmas ◽  
Sri Wilarso Budi R. ◽  
Irdika Mansur

Jabon (Anthocephallus cadamba Roxb.) is one of fast-growing species with high economical value, and well adapted on some of soil types. The aims of this research were to analyze the effectiveness of AMF species isolated from Samama (Anthocephallus macrophyllus (Roxb.) Havil) and to determine the favorable dose of nitrogen and phosphate fertilizer for Jabon growth. The research was conducted CRD-split plot design main plot was Acaulospora sp.1 (M1), Glomus sp.1 (M2), Acaulospora sp.2 (M3), Acaulospora sp.3 (M4), Glomus sp.2 (M5). While the fertilizer as the sub-plot, consist of control (P0), urea 0.5g+rockphosphat 2g (P1), urea 1g+rockphosphat 4g (P2). The result showed that AMF and fertilizer applications effectively improved Jabon grown, especially in height, stem diameter, and shoot dry weight. The interaction (M4P1) increased plant height 154.73%, diameter 75.38% and shoot dry weight 376.09% compared with control. P1 treatment was better for growth of Jabon that was inoculated by mycorrhiza. Acaulospora sp.1 (M1) originally from Samama without fertilizer had the best effectiveness for Jabon growth.Key words: Acaulospora, indigenous

2021 ◽  
pp. 309-319
Author(s):  
Kisman Kisman ◽  
Farid Hemon ◽  
Sumarjan Sumarjan ◽  
Suprayanti Dewi

ABSTRACTThis study aims to determine the vegetative appearance of three genotypes of large-seeded soybean under puddle stress. The Experimental method was used and the plastic buckets as the experimental units were arranged using a Split Plot Design. The main plot was the stress factor (S) consisting of normal conditions (S0) and puddle stress (S1), and the subplot was the genotype factor (G) consisting of G1 (KH1), G2 (Argomulyo), and G2 (Grobogan). Each genotype was repeated four times. The observed variables were plant height, number of leaves, leaf area, number of productive branches, specific leaf weight, root/shoot dry weight ratio. The results showed that there were significantly differences in the appearance of the vegetative characters of the three genotypes of large seeded soybean under puddle stress conditions, especially on plant height, leaf area, plant dry weight, and shoot dry weight. Under puddle stress conditions, KH1 showed the highest of the plant height, root dry weight, and shoot dry weight. Argomulyo showed the highest of the leaf area, while Grobogan did not show as a tolerant variety under puddle stress conditions. 


Jurnal Agro ◽  
2022 ◽  
Vol 8 (2) ◽  
pp. 164-177
Author(s):  
Elis Kartika ◽  
Gusniwati Gusniwati ◽  
Made Deviani Duaja

Grafting bibit kopi memiliki tujuan menghasilkan tanaman dengan karakteristik terbaik dari dua varietas kopi yang disambungkan. Kopi robusta digunakan sebagai batang bawah, karena lebih tahan terhadap kondisi yang tidak menguntungkan di lahan gambut. Upaya peningkatan ketahanan batang bawah dapat memanfaatkan mikoriza dan disambungkan dengan kopi liberika sebagai batang atas. Penelitian ini bertujuan untuk  mendapatkan bibit kopi Liberika unggul hasil grafting dengan kopi Robusta bermikoriza serta mendapatkan panjang entres kopi Liberika yang mampu meningkatkan pertumbuhan bibit kopi Liberika hasil sambung pucuk. Percobaan ini menggunakan Rancangan Acak Lengkap faktorial dengan dua faktor dan empat ulangan. Faktor pertama adalah inokulasi mikoriza (tanpa aplikasi mikoriza dan aplikasi mikoriza gabungan Glomus sp-1a dan Glomus sp-3c) dan  faktor kedua berupa panjang entres (10, 15, 20 dan 25 cm). Parameter yang diamati adalah persentase keberhasilan sambungan, waktu pecah tunas, pertambahan tinggi bibit, pertambahan jumlah daun, jumlah tunas, bobot kering tunas, dan infeksi mikoriza. Hasil penelitian menunjukkan respons bibit kopi Liberika hasil grafting dengan bibit kopi Robusta bermikoriza terbaik diperoleh pada panjang entres 15 cm, sedangkan yang disambungkan dengan Robusta tidak bermikoriza diperoleh pada panjang entres 25 cm. Pertumbuhan bibit kopi Liberika hasil grafting dengan bibit kopi Robusta terbaik pada berbagai panjang entres diperoleh pada kopi Robusta bermikoriza.” The main goal of coffee grafting is to create a crop with the best characteristic of two coffee varieties in one plant. Robusta coffee is used as the rootstock, which is more resistant to constraints and unfavorable conditions in the peatland. The effort to increase rootstock resistance is inoculated by mycorrhizae and grafted with Liberica coffee as the scion. This study aimed to obtain the best scion length in order to increase the growth of Liberica coffee with Robusta coffee as the inoculated rootstock. The experiment used factorial completely randomized design with the first factor was mycorrhizae inoculation (without inoculation and inoculation of Glomus sp-1a and Glomus sp-3c combination) and the second factor was  the length of scion (10, 15, 20 and 25 cm). The variables observed were the percentage of success grafted plants, shoot break time, growth (plant height, number of leave, number of shoots, and shoot dry weight) and mycorrhizae infection. The results showed that the plant inoculated by mycorrhizae and scion lenght of 15 cm gave the best percentage of the success graft, shoot break time, and growth of scion. While, the root stock without inoculation showed the best result with the scion length 25 cm. The best growth of grafted plant was obtained in all scion length with mycorrhizae inoculation. 


2018 ◽  
Vol 46 (2) ◽  
pp. 197
Author(s):  
Diana Nurus Sholehah ◽  
Suhartono , ◽  
Dan Angga Lesmana

ABSTRACT<br /><br />Basil (Ocimum basilicum L.) is a plant that has great potency  to be developed. Almost all parts of the plant can be utilized. This study aimed to determine the effect of shade and phosphate fertilizer on growth and essential oil content in  basil. This research was conducted at the experimental field of Agrotechnology Departement, Faculty of Agriculture, University of Trunojoyo Madura, during January-April 2015. The research was arranged in a split plot design with 3 replications. Main plot was shading i.e., without shading  and 25% shading. The subplots were phosphate fertilizer rate, i.e., 0, 1.5, 3.0, and 4.5 g SP36 per plant that was planted in polybags. The results showed that plants treated with 25% of shading and applied with phosphate 3 g per plant had the highest total dry weight, production of essential oil and eugenol. Shading of 25% give the best results on plant height, leaf area and total fresh weight of the plant. Application of phosphate fertilizer 3 g per plant give  the highest content of chlorophyll (chlorophyll b and total chlorophyll), while the highest essential oil and eugenol content of leaves is obtained from application of phosphate fertilizer 3 and 4.5 g per plant. Shading  and phosphate fertilizer application did not affect leaf  number. <br /><br />Keywords: chlorophyll, eugenol, leaf, phenylpropanoids, production<br /><br />


2018 ◽  
Vol 52 ◽  
pp. 00004
Author(s):  
Antonio Sipayung ◽  
Tengku Sabrina ◽  
Revandy Damanik

A product of pyrolysis of residual biomass called biochar has several benefits into soil. Bio-charcoal formed by burning organic waste which will produce activated carbon and organic carbon and will be added to the soil. The purpose of this study was to evaluate biochar ability to improve soil fertility and increase the production of paddy crops with two planting systems. Legowo planting system is intermittent cropping between two or more rows of rice plants and one empty row. The research was conducted in Tanjung Garbus’s Village, Deli Serdang District with an elevation of ± 50 Meters above sea level. This research used a Factorial Split Plot Design with two factors that was treatment of planting systems as main plot (S), consist of 2 (two) stages: Jajar Legowo 2:1 and Jajar Legowo 4:1 and the sub-plot was biochar application (B) consisting of 3 levels namely, without biochar application, 25.5 ton/ha, and 50.5 ton/ha. The results showed that planting system significantly affected shoot wet weight and shoot dry weight and biochar application had a significant effect on shoot wet weight and no significant effect on shoot dry weight. The interaction showed no significant effect on all parameters.


2020 ◽  
Vol 19 (2) ◽  
pp. 78
Author(s):  
A. KASNO ◽  
DEDI SOLEH EFFENDI

<p>ABSTRAK<br />Kelapa sawit (Elaeis guineensis) berkembang pesat di Indonesia<br />dan  penggunaan  pupuk  meningkat.  Pada  awalnya  pupuk  KCl<br />memperhitungkan hara K, namun diketahui hara Cl juga merupakan hara<br />mikro esensial. Penelitian bertujuan mempelajari penambahan Cl dan<br />bahan organik terhadap pertumbuhan dan kadar Cl dalam tanaman dan<br />akar kelapa sawit. Penelitian dilakukan di rumah kaca Balai Penelitian<br />Tanah, Bogor, tahun 2011. Contoh tanah diambil dari Cinangneng, Bogor<br />(Inceptisols), Cigudeg, Bogor (Oxisols), Kentrong, Lebak (Ultisols), dan<br />Sumatera Selatan (Gambut). Bibit kelapa sawit varietas Avros umur tiga<br />bulan ditanam dalam polibag dan dipanen setelah berumur 8 bulan.<br />Percobaan menggunakan rancangan petak terpisah, dengan petak utama<br />empat jenis tanah, dan empat anak petak, yaitu (1) Kontrol (-Cl), (2) KCl,<br />(3) NPK, dan (4) KCl + bahan organik. Setiap perlakuan diulang 4 kali.<br />Parameter yang diamati tinggi tanaman, diameter batang, bobot kering<br />tanaman dan akar, analisis Cl dalam tanah, daun, dan akar. Hasil penelitian<br />menunjukkan bahwa pemberian Cl menurunkan pertumbuhan bibit kelapa<br />sawit pada Oxisols, namun meningkatkan pada Inceptisols, Ultisols, dan<br />Gambut. Pemberian bahan jenis organik nyata meningkatkan pertumbuhan<br />kelapa sawit pada ke empat tanah. Pemberian hara Cl tidak meningkatkan<br />bobot kering tanaman kelapa sawit pada Inceptisols, Oxisols, dan Gambut,<br />namun meningkatkan bobot kering tanaman pada Ultisols. Pemberian hara<br />Cl meningkatkan bobot kering akar tanaman kelapa sawit pada ke empat<br />jenis tanah, namun meningkatkan kadar Cl dalam akar kelapa sawit,<br />sedangkan pemberian hara Cl tidak meningkatkan kadar Cl dalam daun,<br />kecuali pada Oxisols. Pemberian bahan organik menurunkan kadar Cl<br />dalam daun pada Ultisols dan tanah Gambut.<br />Kata kunci: bahan organik, Elaeis guineensis, jenis tanah, klorida,<br />pertumbuhan</p><p>ABSTRACT<br />Oil palm (Elaeis guineensis) was growing rapidly in Indonesia<br />and fertilizers use increased. Initially KCl were calculated as K nutrient,<br />but it is known that Cl is also an essential micronutrients. The research<br />aimed at studying the Cl and organic matter application on growth and Cl<br />content in plants and roots of oil palm. The study was conducted in the<br />greenhouse of Soil Research Institute, Bogor, in 2011. Soil samples were<br />taken from Cinangneng, Bogor (Inceptisols), Cigudeg, Bogor (Oxisols),<br />Kentrong, Lebak (Ultisols) and South Sumatra (Peat). AVROS varieties of<br />oil palm seedlings used 3 months being planted in polybags and harvested<br />after 8 months. The experiment design used was split plot design, with<br />four soil types as main plot, and four sub plots e.i. (1) Control (-Cl), (2)<br />KCl, (3) NPK, and (4) KCl + organic matter. Every treatment repeated<br />four times. Parameters observed are plant height, stem diameter, plant and<br />root dry weight and Cl analysis in soil, leaves, and roots. The result<br />showed that Cl application decreasing oil palm growth in Oxisols. Organic<br />matter application siqnificant increase of oil palm growth on the fourth<br />soil. The application of Cl nutrient did not increase the dry weight of plant<br />in Inceptisols, Oxisols, and Peat soil, but increased the dry weight of plants<br />on Ultisols. The application of Cl did not increase root dry weight in the<br />four soils, but increased Cl content in the roots in the four soil. While the<br />application of Cl did not increase of Cl content in leaves, except in<br />Oxisols. Organic matter application can reduce the content of Cl in the<br />leaves on the Ultisols and Peat soil.<br />Key words: organic matter, Elaeis guineensis, soil type, chloride, growth</p>


2019 ◽  
Vol 12 (01) ◽  
pp. 29
Author(s):  
Husnul Khotimah

ABSTRACT Okra (Abelmoschus esculentus L.) is one of horticulture crop that contain high nutrition. Growth and yield of this crop determined by genetic and environment factor especially water. The objective of this research was to know the effect of drought stress toward growth and yield of several okra genetypes. This research was undertaken in plastic house, Batu Kuta village Sub regency of Narmada using Split Plot design with drought stress as main plot and genotype as sub plot. Main plot consist of drought stress and without drought stress. Sub plot consist of Dompu genotype, Hybrid genotype, Red genotype and Long genotype. Every treatment combination was replicated three times. Result of this study showed that interaction between treatment and genotype of okra effected on canopy wet weight, canopy dry weight, plant height at 60 days after planting, number of leaf at 30, 60 and 90 days after planting, number of flower becoming fruit and number of good fruit. Treatment of okra genotype effected on almost all parameters except wet weight of root, dry weight of root and diameter of stem 30 days after planting. While, treatment of drought stress only effected on canopy wet weight and plant height at 60 and 90 days after planting. Long genotype had the best growth on the condition of drought. Red genotype had the best number of good fruit on the condition of drought stress and without drought stress.


2018 ◽  
Vol 5 (1) ◽  
pp. 10-14
Author(s):  
Siti Aminah Nasution ◽  
Chairani Hanum ◽  
Jonatan Ginting

Morphological observations were a preliminary identification for plant adaptation to shading stress. This research was conducted at Cengkeh Turi, North Binjai Subdistrict (32 meters above sea) from April to June 2017, used Split Plot Design. The main plot was shade (0, 25, 50 and 75%) and the sub plot was pepper varieties (Bengkayang and Lokal Binjai). The results showed that two varieties of pepper used have the same responses on the shoot dry weight, root dry weight, number of leaf area. Shading stress treatment had a significant effect on shoot dry weight and the number of leaf areas. Lokal Binjai was more adaptive to shading stress compared to Bengkayang. Light intensity 25% it is a good condition for two varieties of pepper


2018 ◽  
Vol 8 (3) ◽  
pp. 147-153
Author(s):  
Hutami Indah Pertiwi ◽  
Sri Wilarso Budi R. ◽  
Arum Sekar Wulandari

Jabon (Anthocepalus cadamba Roxb.) is one of the fast-growing species that naturally spread in some areas of Indonesia. Known as well adapted to some types of soil, and attributes to a quite high of economical prospects value. Interaction of Arbuscular Mycorrhiza Fungi (AMF) symbiotic involve not only between fungi and plant’s root but also involving supporting organisms (bacteria). This bacteria capable to stimulating the development of mycorrhizal hyphae namely as Mycorrhiza Helper Bacteria (MHB). The aims of this research was to discover of bacterial isolates that can stimulate the development of AMF in Jabon seedling and to examine the effectiveness of MHB isolate and AMF toward Jabon growth. The experiment was conducted in Completely Randomized-split splot design with two factors. The main plot was AMF with two levels; without AMF (M0) and with AMF respectively. Bacteria as the sub-plot with 19 levels consist of the control (B0), Isolate of Glomus sp with coding B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, B16, B17, and B18 respectively. Our experiment result showed that AMF inoculated of Jabon seedling had significantly effect on root colonization and root dry weight. The average of root colonization was 20.2%. Root dry weight increased 4.69% compared to control. Bacteria were suspected as MHB has not provided significant resultsKey words: arbuscular mycorrhizal fungi, jabon, mycorrhizal helper bacteria


2015 ◽  
Vol 43 (2) ◽  
pp. 105 ◽  
Author(s):  
Isdijanto Ar-Riza ◽  
M. Alwi ◽  
Nurita ,

<p>ABSTRACT<br /> <br />Tidal swamp lands containing acid sulphate is easily become idle land, which can be fixed by reducing oxidation process of pyrite (FeS2). The pyrite oxidation causes disturbance on the growth and yield of rice plant. An experiment was conducted by means soil leaching in order to reduce accumulation of pyrites. The research had been conducted in Simpang Jaya village, Barito Kuala District in 2012 using a split plot design with three replications. As the main plot was leaching, and no leaching treatment, while as the subplot was soil tillage, i.e., 1) control, 2) weeds cleared without tillage, 3) soil tillage at a depth of 15 cm, and 4) soil tillage at a depth of 30 cm. The results showed that the leaching treatment combined with tillage at a depth of 15 cm or 30 cm increased the number of rice tillers, shoot dry weight, and number of panicles per hill, and number of seeds per hill, thus the leaching treatment was able to increase rice production.</p><p>Keywords: acid sulphate, leaching, pyrite, tidal swamp land</p>


2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Intan Apriani Sutandi ◽  
Arifah Rahayu ◽  
Nur Rochman

This study was aimed at assessing the effects of shade on the growth, productivity of indigenous vegetables pohpohan and reundeu.   A split-plot design was used.  The main plot was shade treatments consisting of four levels, namely 0% (no shade), 25%,  50%, and 75%.  The subordinate plot was the seed origins, namely Sukabumi, Cianjur, and Bogor.  The arrangement of the main and sub plots was done based on a completely randomized design.  Results showed that  in pohpohan increased plant height was found in 50% shade treatment, while leaf length and width was found to be increased in shade treatment up to 75%.  Leaf length and width of pohpohan plants of Bogor origin were higher than those of pohpohan plants of Cianjur and Sukabumi origins. In reundeu plants, no effects of shade treatments were found in all variables measured.  Reundeu plants of Bogor and Cianjur origin were found to be superior in plant height, leaves number, length, and width, and fresh and dry  weight. Pohpohan plants were potential to be grown under shades.    Key words: seed origin, plant height, pohpohan, reundeu, Bogor  


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