Tropical and Subtropical Agroecosystems最新文献

{"title":"RESPUESTA DE TRES ESPECIES MADERABLES DE RÁPIDO CRECIMIENTO A DIFERENTES BIOCLIMAS EN ECUADOR","authors":"Roy Vera-Velez, Jorge Grijalva-Olmedo, Raúl Ramos-Veintimilla, Franklin Sigcha-Morales, Ricardo Limongi-Andrade","doi":"10.56369/tsaes.4882","DOIUrl":"https://doi.org/10.56369/tsaes.4882","url":null,"abstract":"Background: The timber sector in Ecuador holds promising potential for growth and development. The intensive utilization of native taxa has depleted their genetic species pool, making them increasingly scarce in meeting the rising demand for wood. Consequently, there has been a growing exploration of new fast-growing forest species to serve as alternatives for lumber and biomass production. Objective: To assess the suitability of Andean bioclimatic conditions for the introduction of three tree species: Paulownia elongata, P. fortunei, and the hybrid P. elongata x P. fortunei. This work primarily focused in investigating whether plant density impacts the initial growth of individual tree growth and whether there is a co-dependence between site conditions and plant density in each of the three species. Methodology: The National Autonomous Institute of Farming Research (INIAP) imported 3000 seedlings, each about 10cm tall, of Paulownia elongata, Paulownia fortunei, and the hybrid Paulownia elongata x Paulownia fortunei from the World Paulownia Institute of Georgia - USA. Four experimental sites were selected in two regions of Ecuador: humid tropics (Quevedo and Santo Domingo de los Tsachilas), dry sub-peak (el Almendral) and Andes (Riobamba), each site is located at different altitudes. At each site, the experiment was set up in a spatial split-plot arrangement with randomized complete blocks. Three blocks were established, two planting frames (3x3 m and 4x4 m) and the three selected Paulownia species. The three blocks were laid off randomly in each experiment. The two planting frames were randomly placed within each block, and the three species were randomly planted within each planting frame. The experimental subjects (plant species) consisted of nine individuals. Results: Plants with higher height and diameter are located in areas with lower elevation, with hybrid Paulownia displaying better performance in high densities. All species showed a survival rate above 85% one-year post-establishment. However, the lowest survival is found in areas above 2000 m. Implications: High elevations restrict the individual growth of Paulownia in Andean conditions, but low altitudes enhance it. Conclusion: The three specimens performed reasonably well during one-year post-establishment. However, it is necessary to continue observing their growth until they reach their asymptotic point, determining their volumetric yield.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139284980","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}

{"title":"DIVERSIDAD MORFOLÓGICA DE Ardisia compressa Kunth, DEL NORESTE DE CHIAPAS, MÉXICO","authors":"Jesús Rigoberto Molina Maldonado, R. H. Andueza Noh, Esaú Ruíz Sánchez, René Garruña, Federico Antonia Gutiérrez Miceli, Luis Filipe Da Conceiςão-Dos Santos","doi":"10.56369/tsaes.5004","DOIUrl":"https://doi.org/10.56369/tsaes.5004","url":null,"abstract":"Background. Ardisia compressa Kunth, is a wild species native from tropical evergreen forests of Mexico, it produces fruits with phytochemical, ecological and dietary potencial. Its fruits are appreciated by people from local communities. However, in Mexico there are no studies that allow knowing the state of its phenotypic diversity. Objective. Characterize the morphological diversity of A. compressa populations from Chiapas state, Mexico. Methodology. Ninety individuals of nine wild populations of A. compressa were evaluated using 45 morphological traits (16 qualitative and 29 quantitative). The qualitative data were subjected to descriptive analysis and quantitative data were used in an analysis of variance (ANOVA) and finally the qualitative and quantitative data were analyzed simultaneously by means of a multivariate analysis with the Ward-MLM Method. Results. The qualitative traits showed phenotypic variability in the characteristics of leaf and fruit color. The quantitative data showed significant differences (P≤ 0.05) in all traits evaluated. The results of the principal component analysis (PCA) and cluster analysis (UPGMA) grouped the populations into three morphological groups differentiated by the similarity of the morphological traits of the populations and not by their geographical origin. Implications. The results in this study should be considered to implementing strategies of plant production and conservation of A. compressa. Conclusion. A wide phenotypic variability was found organized into three morphological groups defined base on characteristics of tree height, number of fruits, number of flowers and ratio of length to thickness leaf. The quantitative traits allowed us to observe the greatest morphological variability in the populations of A. compressa.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"15 6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139287400","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}

{"title":"PLANT PARASITIC NEMATODES ASSOCIATED WITH TREE TOMATO (Solanum betaceum Cav.) IN TLACOLULAN AND XALAPA, VERACRUZ, MEXICO","authors":"Gloria Carrión, Lorena Velasco-Rodríguez, Daniel López-Lima","doi":"10.56369/tsaes.5095","DOIUrl":"https://doi.org/10.56369/tsaes.5095","url":null,"abstract":"<p><strong>Background:</strong> Tree tomato (<em>Solanum betaceum</em> Cav.) is a plant introduced to Mexico since colonial times, currently it is found as a crop in backyard orchards in the central mountainous region of Veracruz. Due to its nutraceutical properties, its cultivation is gaining importance worldwide and spreading. However, since there are no established formal crops in Mexico, there are no studies on the pests that may affect the development of this plant. <strong>Objective: </strong>To identify the plant-parasitic nematodes associated with the rhizospheric soil and root, as well as the determine their abundance in tree tomato plants, located in the Tlacolulan and Xalapa municipalities, in Veracruz state. <strong>Methodology:</strong> The nematodes were extracted from the soil and roots, fixed, clarified, mounted for identification at the genus level, and quantified. <strong>Results:</strong> 704 specimens belonging to 14 genera were identified: <em>Criconema, Criconemoides, Filenchus, Fraglenchus, Gracilacus, Helicotylenchus, Malenchus, Meloidogyne, Ogma, Paratylenchus, Pratylenchus, Pratylenchoides, Sakia, </em>and<em> Thada</em>. The most abundant nematodes were <em>Helicotylenchus</em> and <em>Meloidogyne.</em> <strong>Implications:</strong> Since in five samples we found <em>Meloidogyne</em> individuals, a diagnosis must be made prior to the establishment of new crops to avoid the increase in populations that can affect the performance of the plants. <strong>Conclusion:</strong> <em>Criconema, Filenchus, Fraglenchus, Malenchus, Ogma, Pratylenchoides, Sakia, </em>and<em> Thada</em> are recorded for the first time associated with this plant. </p>","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139284661","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}

{"title":"COMPUESTOS SECUNDARIOS DE PLANTAS Y SU EFECTO EN CONTRA DEL ÁCARO Varroa destructor","authors":"Jesús Humberto Reyna Fuentes, Cecilia Zapata Campos, José Octavio Merino Charrez, Daniel López Aguirre, Juan Alberto Ascasio Valdéz","doi":"10.56369/tsaes.4527","DOIUrl":"https://doi.org/10.56369/tsaes.4527","url":null,"abstract":"Background: The honeybee (Apis mellifera L.) represents one of the most important species in the maintenance of ecosystems, since it contributes to crop pollination, which improves crop yields and the reproduction of other plants. However, some factors such as climate change, africanization and various pathological processes, including the presence of the Varroa destructor mite, have led to a decline in A. mellifera populations. Objective: To collect scientific information on the plants used for mite control, as well as the organic derivatives and secondary compounds with bioacaricidal potential used for such control. Main findings: Due to the fact that infestations of this mite have become a major problem, numerous control methods have been developed and tested, mainly based on synthetic acaricides; however, these have generated disadvantages such as the development of resistance and contamination of products such as honey and pollen. Implications: Therefore, it is necessary to implement an organic, environmentally friendly control method that reduces mite populations without developing resistance, and that does not generate contamination of hive sub-products. Conclusions: In general, the most common types of extracts tested were essential oils and hydroalcoholic extracts, which reported mortality ranging from 26.4 to 99.5% on V. destructor. Likewise, some species of plants endemic to Matorral Espinoso Tamaulipeco (MET) have been tested against other arthropods and that could be an important source of components that act as acaricides; however, it is necessary to identify and analyze the secondary compounds, as well as the molecules and their activity on V. destructor.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139290201","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}

{"title":"AVANCES SOBRE EL USO DE OCHO PLANTAS TROPICALES PARA EL CONTROL DE GARRAPATAS Y NEMATODOS GASTROINTESTINALES EN BOVINOS, EQUINOS Y CANINOS","authors":"G.J. Flota-Biurgos, Jose Alberto Rosado Aguilar, R. I. Rodriguez-Vivas, R. Borges-Argáez, M. Gamboa-Angulo","doi":"10.56369/tsaes.4921","DOIUrl":"https://doi.org/10.56369/tsaes.4921","url":null,"abstract":"","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139290537","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}

{"title":"RESEARCH ON CHEMICAL COMPOUNDS FROM EDIBLE MUSHROOMS FOR THE CONTROL OF GASTROINTESTINAL NEMATODES AND PHYTOPARASITES","authors":"Liliana Aguilar Marcelino, J. Torres-Acosta, C.A. Sandoval-Castro, José E. Sanchez, M. González-Cortázar, M. G. Mancilla-Montelongo, P. G. González-Pech, J. A. Pineda-Alegría, J. Ventura-Cordero, G. Castañeda-Ramírez","doi":"10.56369/tsaes.4611","DOIUrl":"https://doi.org/10.56369/tsaes.4611","url":null,"abstract":"<p><strong>Background</strong>: There<em> </em>are<em> </em>over<em> </em>1,500,000<em> </em>species<em> </em>of<em> </em>mushrooms<em> </em>worldwide<em> </em>and<em> </em>approximately<em> </em>20,000<em> </em>of<em> </em>them<em> </em>are<em> </em>present<em> </em>in<em> </em>Mexico<em> </em>where<em> </em>native<em> </em>cultures<em> </em>use<em> </em>some<em> </em>species<em> </em>of<em> </em>wild<em> </em>mushrooms<em> </em>for<em> </em>different<em> </em>purposes.<em> </em>Among<em> </em>those<em> </em>mushroom<em> </em>species<em> </em>approximately<em> </em>200<em> </em>are<em> </em>edible,<em> </em>the<em> </em>genus<em> Pleurotus </em>spp<em> </em>the<em> </em>second<em> </em>most<em> </em>produced<em> </em>and<em> </em>consumed<em> </em>on<em> </em>the<em> </em>American<em> </em>continent.<em> </em>The<em> </em>production<em> </em>of<em> Pleurotus </em>spp.<em> </em>have<em> </em>had<em> </em>rapid<em> </em>development<em> </em>in<em> </em>the<em> </em>food<em> </em>industry,<em> </em>due<em> </em>to<em> </em>their<em> </em>nutraceutical<em> </em>and<em> </em>pharmacological<em> </em>properties,<em> </em>ease<em> </em>of<em> </em>growth<em> </em>and<em> </em>adaptation<em> </em>to<em> </em>the<em> </em>diversity<em> </em>of<em> </em>organic<em> </em>substrates<em> </em>on<em> </em>wich<em> </em>they<em> </em>can<em> </em>grow.<em> </em>Other<em> </em>edible<em> </em>mushrooms,<em> </em>such<em> </em>as<em> Lentinula edodes </em>(Shiitake),<em> </em>have<em> </em>also<em> </em>been<em> </em>used<em> </em>for<em> </em>their<em> </em>nutraceutical<em> </em>properties.<em> </em><strong>Objective</strong>:<em> </em>The<em> </em>present<em> </em>work<em> </em>provides a<em> </em>general<em> </em>and<em> </em>updated<em> </em>overview<em> </em>of<em> </em>the<em> </em>advances<em> </em>in<em> </em>the<em> </em>use<em> </em>of<em> </em>the<em> </em>secondary<em> </em>metabolites<em> </em>of<em> </em>edible<em> </em>macromycetes<em> </em>and<em> </em>their<em> </em>by-products<em> </em>for<em> </em>the<em> </em>control<em> </em>of<em> </em>parasites<em> </em>in<em> </em>the<em> </em>agricultural<em> </em>sector.<em> </em>The<em> </em>methodological<em> </em>strategy<em> </em>used<em> </em>was<em> </em>a<em> </em>detailed<em> </em>bibliographic<em> </em>review<em> </em>in<em> </em>different<em> </em>sources<em> </em>such<em> </em>as<em> </em>PubMed<em> </em>for<em> </em>the<em> </em>National<em> </em>Center<em> </em>for<em> </em>Biotechnology<em> </em>Information<em> </em>(NCBI),<em> </em>ResearchGate,<em> </em>Scopus,<em> </em>Science<em> </em>direct,<em> </em>among<em> </em>others.<em> </em><strong>Main findings:</strong><em> </em>The<em> </em>review<em> </em>process<em> </em>showed<em> </em>that<em> </em>nine<em> </em>species<em> </em>of<em> </em>edible<em> </em>mushrooms<em> </em>exhibited<em> in vitro </em>nematicidal<em> </em>activity<em> </em>against<em> </em>parasitic<em> </em>nematodes<em> </em>of<em> </em>plants<em> </em>(<em>Nacobbus","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139290668","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}

{"title":"AMERICAN CONSORTIUM FOR SMALL RUMINANT PARASITE CONTROL INVESTIGATIONS ON THE USE OF PLANT SECONDARY COMPOUNDS OF SERICEA LESPEDEZA FOR THE CONTROL OF SHEEP AND GOAT PARASITES","authors":"Thomas Terrill","doi":"10.56369/tsaes.4542","DOIUrl":"https://doi.org/10.56369/tsaes.4542","url":null,"abstract":"Introduction: Sericea lespedeza (SL; Lespedeza cuneata) is a warm-season perennial legume well-adapted to the warm, moist climate of the southeastern USA. High in condensed tannins and other secondary compounds, SL has potential as an anti-parasitic nutraceutical forage for sheep and goats in this region and throughout the world where it is adapted. Objectives: To summarize the nearly 20 years’ work of the American Consortium for Small Ruminant Parasite Control (ACSRPC) related to the anti-parasitic properties of SL in the diet of small ruminants. Results: In a series of experiments with goats and sheep fed SL in fresh (grazed), dried (hay, leaf meal, pellets) or preserved (ensiled) forms, this forage showed promising anti-parasitic efficacy against GIN, particularly Haemonchus contortus, and coccidia (Eimeria spp.), lowering gastrointestinal nematodes (GIN) fecal egg counts (FEC), coccidial fecal oocyst counts (FOC), and reducing GIN larval development and worm burdens. Implications: These results indicate the potential of SL as a component of integrated, novel (non-chemical) parasite management programs for on-farm application by small ruminant producers. Conclusions: Sericea lespedeza has very good anti-parasitic activity against GIN and coccidial infection in sheep and goats and has excellent potential as a nutraceutical forage for small ruminant producers, either for their own use or for sale as nutraceutical hay or pellets.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139290844","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}

{"title":"ESTIMACIÓN DE BIOMASA Y CARBONO ALMACENADO EN LA VEGETACIÓN Y SUELO DEL ÁREA DE INFLUENCIA DE LA PRESA “LA PURÍSIMA”, ESTADO DE GUANAJUATO, MÉXICO","authors":"Fernando Carrillo-Anzures, Miguel Acosta-Mireles, Matilde Hernandez-Santiago, Ramiro Perez-Miranda, Martin Enrique Romero-Sanchez","doi":"10.56369/tsaes.4854","DOIUrl":"https://doi.org/10.56369/tsaes.4854","url":null,"abstract":"<p><strong>Background.</strong> Determining carbon in forest ecosystems is essential to estimate its influence on climate change mitigation. This study aimed to determine the carbon stored in the vegetation and soil of the Protected Natural Area of the \"La Purísima\" Dam and its influence zone in Guanajuato, Mexico. <strong>Methodology.</strong> The study area was classified according to its tree density as high, medium, low, and grassland. In each sampling site, tree species were identified, and total height and normal diameter were measured. In the shrub layer, crown diameter and height were measured. Species biomass was estimated using documented allometric equations, except for <em>Myrtillocactus</em> <em>geometrizans</em> (Mart. ex Pfeiff.) generated in this study. In the herbaceous layer, the percentage of coverage in the sites was considered, for which eight random samples of 0.25 m² were taken. Carbon estimation stored in MgC ha^-1 was obtained by multiplying the biomass by the factor 0.5. Carbon was measured in the soil by extracting 12 random samples at a depth of 20 cm. <strong>Results.</strong> In the 263.3 ha of the studied area, 16,627.7 MgC were estimated. The soil contributed 71.21%, the tree layer 24.6%, the shrub 1.86%, grass 0.75 and the herbaceous layer 1.57%. <strong>Implications.</strong> Even the species that develop in low deciduous forests have a reduced photosynthetic capacity; they significantly contribute to carbon stores. <strong>Conclusions.</strong> The difference in carbon storage varies according to the densities of the wood species; high densities have a greater amount of stored carbon in the aerial stratum and the soil. The carbon contributed by the grassland was barely perceptible.</p>","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135109688","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}

{"title":"EFECTO DEL DESPERDICIO FRESCO DE COCINA Y ADITIVOS VEGETALES EN EL DESEMPEÑO PRODUCTIVO DE GALLINAS CRIOLLAS DE TRASPATIO","authors":"Marco Antonio Camacho-Escobar, Lucelly Mijangos-Matus, José Guadalupe Gamboa-Alvarado, Emmanuel Ramírez-Rivera, Narciso Ysac Ávila-Serrano, Serafín Jacobo López-Garrido, Mónica Marcela Galicia-Jiménez","doi":"10.56369/tsaes.4968","DOIUrl":"https://doi.org/10.56369/tsaes.4968","url":null,"abstract":"<p><strong>Background</strong>. As a result of the global trend to produce healthier foods, natural bioactive additives have been included in animal feed, such as different secondary metabolites of plant origin, which are used to improve productive performance and influence the growth and health of animals. animals. <strong>Objective</strong>. Feed criollo hens with kitchen and greengrocery waste plus vegetable additives to evaluate their effect on the productive, carcass, and meat characteristics. <strong>Methodology</strong>. Creole chickens were fed with kitchen waste and greengrocery plus vegetable additives which were garlic, holy grass or epazote. The variables evaluated were weight gain, feed consumption, feed conversion; hot and cold carcass performance, pH; temperature; skin and meat color, water holding capacity and drip water loss. A completely randomized experiment with four treatments was carried out. Analysis of variance and comparison of means with Tukey test were used. <strong>Results</strong>. There were differences (P&amp;lt;0.05) in weight gain, feed conversion, temperature at 24 h; Skin and meat color presented high luminosity with a low yellow hue. <strong>Implications</strong>. It is possible to produce healthier meat from hens fed with natural additives, obtaining satisfactory productive and carcass results. <strong>Conclusions</strong>. Including vegetable additives in the diet of Creole hens fed traditionally improves the productive parameters and quality of the meat, without affecting the quality of the carcass. </p>","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135109687","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}

{"title":"EFFECT OF BRADYRHIZOBIUM INOCULUM AND LEVELS OF PHOSPHORUS ON THE YIELD AND QUALITY OF SOYBEAN","authors":"Md. Golam Rabbani, Md. Abdus Salam, Sinthia Afsana Kheya, Swapan Kumar Paul","doi":"10.56369/tsaes.5000","DOIUrl":"https://doi.org/10.56369/tsaes.5000","url":null,"abstract":"<p class=\"Default\"><strong>Background:</strong> Soybean is one of the major oil seed crops in Bangladesh. Combine application of <em>Rhizobium</em> inoculation and phosphorus fertilizer could be an important factor to get maximum yield and quality of soybean. <strong>Objective: </strong>To evaluate the effect of Bradyrhizobium inoculum and levels of phosphorus on yield and quality of soybean varieties. <strong>Methodology</strong>: The experiment evaluated three factors namely, varieties, Bradyrhizobium inoculum and phosphorus levels. The three varieties were: i) Binasoybean-1 ii) Binasoybean-2 and iii) BARI Soybean-6. Bradyrhizobium inoculum levels were: i) control (no inoculum), ii) 50% of recommended dose (RD) (25 g kg^-1 seed) iii) 100% of RD (50 g kg^-1 seed). The phosphorus levels were: i) control (no phosphorus) ii) 50% of RD (18 kg ha^-1), iii) 100% of RD (36 kg ha^-1). The experiment was laid out in a randomized complete block design with three replications. Data were recorded on yield, yield contributing characters and quality parameters of seeds. <strong>Results:</strong> Binasoybean-1 performed superiorly in terms of all the yield and yield contributing characters. Application of 100% of RD of Bradyrhizobium inoculum and application of 100% of RD of phosphorus also showed superior performance. Considering the interaction effect, the findings of the study indicate that Binasoybean-1 responded well to the application of 100% of RD of phosphorus and 100% of RD of Bradyrhizobium and gave maximum seed yield. The highest protein content (39.21%) was found in Binasoybean-2, 50% of RD of phosphorus with no Bradyrhizobium inoculum and the highest oil content was found (19.33%) in Binasoybean-2, no phosphorus and 50% of RD of Bradyrhizobium inoculum. <strong>Implication:</strong> Binasoybean-1 with the application of 100% of RD of phosphorus and 100% of RD of Bradyrhizobium might be recommended to obtain higher yield soybean in Bangladesh. <strong>Conclusion:</strong> From this study it may be concluded that recommended dose of phosphorus and Bradyrhizobium is beneficial for a higher yield of Binasoybean-1.</p>","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135256325","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}