Tropical and Subtropical Agroecosystems最新文献

{"title":"CURVA DE CRECIMIENTO DE CUYES MACHOS (Cavia porcellus) DE LA RAZA PERÚ MEDIANTE MODELOS NO LINEALES EN COLOMBIA","authors":"William Armando Tapie, L. Giraldo, S. L. Posada-Ochoa, Jaime R. Rosero-Noguera","doi":"10.56369/tsaes.5179","DOIUrl":"https://doi.org/10.56369/tsaes.5179","url":null,"abstract":"Background: Animal growth modeling is a tool that enables the acquisition of parameters to evaluate animal performance and predict outcomes for decision-making. Objective: To describe the growth of male guinea pigs of the Peruvian breed using the non-linear Brody, Gompertz, Logistic, and Von Bertalanffy models. Methodology: Twelve male guinea pigs with an initial weight of 393 ± 55 g were housed in metabolic cages with ad libitum feeding of a complete pellet diet. They were weighed every seven days for 13 weeks until reaching 1197 ± 84 g. Criteria used to assess the model's fitting ability included the Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), coefficient of determination (R2), concordance correlation coefficient (CCC), and mean squared prediction error (CMEP). Results: The Logistic model consistently predicted maturity weight (1421g), initial weight (187g), age (65 days), and weight (711g) at the growth curve inflection point. Gompertz and Von Bertalanffy's models tended to overestimate adult weight (A) and exhibited the lowest maturity index (k). Among Gompertz, Logistic, and Von Bertalanffy models, AIC, BIC, R2, CCC, and CMEP fitting criteria showed no significant differences (p > 0.05). Implications: The Brody model was the only one with biologically inconsistent parameters. Conclusion: Considering the biological significance of parameters and residual analysis, the Logistic model is more suitable for describing the growth curve of male guinea pigs of the Peruvian breed.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"38 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140481480","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":"IMPORTANCIA DE LAS REDES INSTITUCIONALES EN LA DIFUSIÓN DE PRÁCTICAS SOSTENIBLES PARA LA PRODUCCIÓN PECUARIA EN EL ESTADO DE YUCATÁN, MÉXICO","authors":"Eugenio Eibenschutz, Francisco Galindo, J. M. Siqueiros, F. Solorio, C. López","doi":"10.56369/tsaes.5138","DOIUrl":"https://doi.org/10.56369/tsaes.5138","url":null,"abstract":"<p><strong>Background:<em> </em></strong>Practices<em> </em>such<em> </em>as<em> </em>the<em> </em>establishment<em> </em>of<em> </em>monocultures,<em> </em>the<em> </em>use<em> </em>of<em> </em>herbicides<em> </em>and<em> </em>overgrazing<em> </em>in<em> </em>tropical<em> </em>cattle<em> </em>ranching<em> </em>have<em> </em>led<em> </em>to<em> </em>deforestation<em> </em>and<em> </em>soil<em> </em>degradation<em> </em>in<em> </em>extensive<em> </em>areas<em> </em>of<em> </em>natural<em> </em>vegetation,<em> </em>causing<em> </em>local<em> </em>and<em> </em>global<em> </em>environmental<em> </em>consequences.<em> </em>In<em> </em>the<em> </em>state<em> </em>of<em> </em>Yucatán,<em> </em>different<em> </em>actors<em> </em>have<em> </em>created<em> </em>initiatives<em> </em>to<em> </em>avoid<em> </em>these<em> </em>consequences<em> </em>through<em> </em>the<em> </em>design,<em> </em>dissemination<em> </em>and<em> </em>implementation<em> </em>of<em> </em>sustainable<em> </em>practices<em> </em>among<em> </em>cattle<em> </em>producers.<strong><em> </em>Objective:<em> </em></strong>This<em> </em>paper<em> </em>seeks<em> </em>to<em> </em>understand<em> </em>how<em> </em>the<em> </em>structure<em> </em>of<em> </em>institutional<em> </em>networks<em> </em>affects<em> </em>the<em> </em>dissemination<em> </em>of<em> </em>sustainable<em> </em>livestock<em> </em>practices<em> </em>for<em> </em>the<em> </em>management<em> </em>of<em> </em>water,<em> </em>soil,<em> </em>biodiversity,<em> </em>forage<em> </em>and<em> </em>animals,<em> </em>which<em> </em>favor<em> </em>a<em> </em>transition<em> </em>to<em> </em>sustainability<em> </em>for<em> </em>the<em> </em>livestock<em> </em>sector<em> </em>in<em> </em>Yucatan.<em> </em>As<em> </em>a<em> </em>case<em> </em>study,<em> </em>the<em> </em>project<em> </em>coordinated<em> </em>by<em> </em>the<em> </em>Universidad<em> </em>de<em> </em>Yucatan<em> </em>for<em> </em>the<em> </em>establishment<em> </em>of<em> </em>intensive<em> </em>silvopastoral<em> </em>systems<em> </em>(ISPS)<em> </em>is<em> </em>analyzed,<em> </em>particularly<em> </em>the<em> </em>scope<em> </em>of<em> </em>the<em> </em>project<em> </em>to<em> </em>transform<em> </em>the<em> </em>practices<em> </em>of<em> </em>livestock<em> </em>farmers<em> </em>in<em> </em>the<em> </em>state<em> </em>of<em> </em>Yucatan<em> </em>and<em> </em>the<em> </em>role<em> </em>played<em> </em>by<em> </em>institutions<em> </em>linked<em> </em>to<em> </em>livestock<em> </em>issues<em> </em>to<em> </em>promote<em> </em>or<em> </em>obstruct<em> </em>this<em> </em>transformation.<em> </em><strong>Methodology:</strong><em> </em>The<em> </em>research<em> </em>was<em> </em>carried<em> </em>out<em> </em>by<em> </em>means<em> </em>of<em> </em>interviews<em> </em>with<em> </em>actors<em> </em>identified<em> </em>by<em> </em>their<em> </em>position<em> </em>in<em> </em>the<em> </em>different<em> </em>institutions<em> </em>linked<em> </em>to<em> </em>cattle<em> </em>raising.<em> </","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"391 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140483004","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":"SUITABILITY AREAS FOR Candidatus Liberibacter asiaticus UNDER DIFFERENT CLIMATE CHANGE SCENARIOS IN MEXICO","authors":"Oliver Rodríguez-Aguilar, José López-Collado, M. Vargas-Mendoza, Alejandra Soto-Estrada, C. García-Ávila","doi":"10.56369/tsaes.5207","DOIUrl":"https://doi.org/10.56369/tsaes.5207","url":null,"abstract":"Background. Climate change models have projected an increase in the distribution of certain crop pests of economic importance by forecasting more favorable future conditions for these organisms. In citrus farming, Huanglongbing is one of the most devastating diseases worldwide, since it has caused the death of millions of trees. Objetive. The objective of this study was to estimate the current and future distribution of Candidatus Liberibacter asiaticus in Mexico, under the climate change scenarios SSP2 4.5 and SSP5 8.5, for the years 2050 and 2070. Methodology. Distribution models were generated with MaxEnt and R, using uncorrelated bioclimatic variables from eight General Circulation Models (GCM) derived from CMIP6 and disease presence data. Results. The results indicate that the current suitability is 44.6 %. The future distribution depended on how model predictions were pooled. An optimistic approach that considered the intersection of all models showed a small reduction of 4.1% while, considering the union of all the GCM models, the increase will vary from 12.3 to 20.1 % of the Mexican territory depending on the particular scenario and time projection. Implications. The zones of potential occurrence of Candidatus Liberibacter asiaticus include most of the citrus-growing areas in Mexico. Conclusion. In some regions, future scenarios show a reduction in the potential occurrence of the species in citrus plantations. However, the risk remains because its surroundings include suitable areas that can be sources of dissemination of the disease. ","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"221 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140484275","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":"DEGRADABILIDAD in situ DE LA MATERIA SECA DE Tithonia diversifolia (Hemsl.) A. Grey EN TRES ÉPOCAS DEL AÑO","authors":"Vicky Tatiana Vargas Velázquez, Silvia López Ortiz, Epigmenio Castillo Gallegos, Ponciano Pérez Hernández, Cristino Cruz Lazo, Jesús Jarillo-Rodríguez, Carlos Lucas-Leyva","doi":"10.56369/tsaes.4963","DOIUrl":"https://doi.org/10.56369/tsaes.4963","url":null,"abstract":"Background. Forage trees and shrubs are an alternative that improve dry matter intake and digestibility in ruminants, due to their high ruminal degradation rate, higher nitrogen contribution for rumen microorganisms, low percentage of neutral and acid detergent fiber. Objective. To estimate the availability, nutritional quality and degradability for Tithonia diversifolia (Hemsl.) A. Gray were estimated at different cutting age, in three seasons of the year. Metodology. Forage production and nutritional quality were measured every 14 d, from cutting to 84 d of age. Leaf and stem samples were taken to determine crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), and the \"in situ\" degradability of dry leaf matter (DM). Results. Total DM production was similar in autumn and winter, and both were greater than for spring. In autumn, at 56 d and in winter at 70 d after cutting, DM production was 9 t ha-1, while in spring at 84 d it was close to 3 t ha-1. Crude protein content increased linearly with days after cutting. Implications. In autumn and winter, the highest percentages of NDF and ADF were observed. Plants at 42 d of regrowth had a lower percentage of ADF. Conclusions. The DM production and the nutritional quality of T. diversifolia differ according to the season of the year and the age of regrowth, at 42, 70 and 84 days of regrowth in autumn, winter and spring, respectively, under the agroecological conditions of the growing area. study, the best conditions for growth occur in Autumn. The DM degradability is similar between the ages of 42, 56 and 70 days of regrowth. However, harvesting plants at 42 days could sacrifice biomass yield at a very early age.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"50 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140483233","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":"RECENT ADVANCES IN THE USE OF SECONDARY COMPOUNDS FOR THE CONTROL OF ANIMAL PARASITES","authors":"M.A. Alonso Diaz, I. Chaves Sousa","doi":"10.56369/tsaes.5436","DOIUrl":"https://doi.org/10.56369/tsaes.5436","url":null,"abstract":"","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"372 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140479866","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":"INVESTIGACIONES MULTIDISCIPLINARIAS RELACIONADAS CON LAS EMOCIONES EN LAS CIENCIAS AGRÍCOLAS Y BIOLÓGICAS","authors":"José Alberto García Vázquez, Katia A. Figueroa-Rodríguez, Josafhat Salinas Ruíz, Joel Velasco Velasco, Dora María Sangerman Jarquín","doi":"10.56369/tsaes.5090","DOIUrl":"https://doi.org/10.56369/tsaes.5090","url":null,"abstract":"Background: Emotions can be defined as a temporary state aroused by relevant external biological stimuli, either adverse or positive that have specific effects on the organism both in the body and in the mind. Research that has focused on emotions has grown exponentially even in areas such as agronomy and biology. Objective: This research aimed to explore current research on emotions, in order to achieve a better understanding of how they have been addressed in the field of agricultural and biological sciences. Methodology: VOSviewer software was used to conduct a co-occurrence analysis on 792 articles related to emotions published in the Elsevier® Scopus® database, the countries that published the most, scientific journals, and institutions were also analyzed. Main findings: The results show that the United States is the most productive country. In the early stages, the functioning of the human brain was characterized, later, studies with a cognitive, physiological and psychological approach were carried out and in recent years, research focused on consumer behavior. Implications. This study contributes to a better understanding of emotions and their implications in different aspects, such as nutrition, health and emotional well-being; highlighting the need for a multidisciplinary approach for a better approximation to the understanding of the complexity that occurs in agroecosystems, particularly those in tropical and subtropical zones that face considerable gaps with respect to other regions.  Conclusions: It is concluded that research on emotions is having an impact on the understanding of perception and intentions that society has to acquire goods and services provided from the agri-food sector.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"124 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140484423","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":"WATER RESOURCES MANAGEMENT MODEL BASED ON REGIONAL DEVELOPMENT: CASE STUDY OF MAGETAN REGENCY, INDONESIA","authors":"Hartojo Budi Purwanto, Sunarto Sunarto, P. Setyono, Mochamad Gamal Rindarjono, Aditya Arief Rachmadhan, Muchammad Bima Gegana Sakti, Andian Hidayat","doi":"10.56369/tsaes.5106","DOIUrl":"https://doi.org/10.56369/tsaes.5106","url":null,"abstract":"Background. The need for water in Magetan Regency, Indonesia, continues to increase along with regional development. Objective. To identify the condition of the water balance and water critical index in Magetan Regency; and forming a regional development-based water management model in Magetan Regency. Methodology. Formation of a water management model based on regional development, both demographically and regional economic development (agriculture, livestock, fisheries, industry, and tourism), and the environment (river and lake maintenance). This study uses water availability data from seven watersheds. The water management model uses a dynamic system model, with an analysis coverage throughout the Magetan Regency area. The annual water balance of Magetan Regency shows that the water balance and water critical index of Magetan Regency are in near critical condition. Integrated water management is needed to avoid critical water conditions in Magetan Regency in the future. Results. Based on the results of model simulations with the application of policy simulations, the water balance in Magetan Regency during the period 2016 to 2030 is still in a near critical condition, but critical water conditions only occur during the 2018-2020 period. Implications. Critical water conditions in the future can be avoided by implementing policy scenarios. The policy scenarios include: (1) reforestation, planting 500,000 tree seedlings each year, (2) maintenance of rivers and lakes twice a year, (3) construction of a reservoir with a capacity of 5000 m3 each year. However, water availability is still fluctuating because the main factor for water availability is rainfall. Conclusion. the policy scenario is proven to be able to increase the availability of water in Magetan Regency.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140484811","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":"TWO SEXUALLY ACTIVE BUCKS HOUSED WITH FOUR SUCCESSIVE GROUPS OF ANOVULATORY DOES INDUCED HIGH PREGNANCY RATES DURING SEVEN-DAY MATING PERIODS","authors":"L.A. Espinoza Flores, J.D. Andrade Esparza, J. Vielma, D. Lopez Magaña, L.A. Zarazaga, H. Hernández, M. Keller, P. Chemineau, J. Delgadillo","doi":"10.56369/tsaes.5061","DOIUrl":"https://doi.org/10.56369/tsaes.5061","url":null,"abstract":"<p><strong>Background.</strong> In seasonally anovulatory goats, sexually active bucks led a high pregnancy rate during a mating period of 36 days. Progesterone priming of does can reduce the length of the mating period while maintaining high fertility by allowing oestrous behaviour at the first male-induced ovulation. <strong>Objective.</strong> To determine whether high fertilization rates could be achieved by using two sexually active bucks, alternated daily for a period of seven days in four successive groups of does. <strong>Methodology.</strong> Two control bucks were used only with one group of does (<em>n</em> = 19), whereas two experimental bucks were successively housed with four groups of does (<em>n</em> = 18 or 19 each). One of the control and experimental bucks was introduced to their respective groups in the morning and removed 24 h later to rest for 24 h. Immediately after the removal of the first buck, the second buck was placed with the group of does. Each doe was treated with 25 mg of progesterone im 48 h prior to the first introduction of bucks to reduce short ovulatory cycles. <strong>Results.</strong> In each group, the proportion of does that ovulated was higher than 93%. These proportions did not differ among groups exposed to the control or experimental bucks (<em>P</em> > 0.05). In each group, the proportion of pregnant does was higher than 78%; proportions did not differ among groups (<em>P</em> > 0.05). <strong>Implications. </strong>At farms with few bucks, efficient management of sexually active bucks can yield a high percentage of pregnant females. <strong>Conclusion.</strong> These results indicate that two sexually active bucks housed with four successive groups of progesterone-treated anovulatory does during a mating period of seven days were able to achieve high pregnancy rates.</p><div id=\"gtx-trans\" style=\"position: absolute; left: -60px; top: -20px;\"> </div>","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"563 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140482884","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 STOCKING DENSITY ON PRODUCTIVE PERFORMANCE OF JUVENILE OF THE BLACKSTRIPE CICHLID Vieja fenestrata (CICHLIFORMES: CICHLIDAE)","authors":"Flor Sánchez Cruz, D. Calzada Ruiz, E. S. Peña Marín, C. A. Álvarez González, José Manuel Juárez Barrientos, J. P. A. Vázquez, José Manuel Ramírez Ochoa","doi":"10.56369/tsaes.4984","DOIUrl":"https://doi.org/10.56369/tsaes.4984","url":null,"abstract":"<p class=\"18AbstractandKeywords\"><span class=\"Ninguno\"><strong><span lang=\"EN-US\">Background:</span></strong></span><span class=\"Ninguno\"><span lang=\"EN-US\"> Native fish species are a developing alternative for sustainable aquaculture worldwide and in Mexico, the southern region is leading the efforts in freshwater species. <strong>Objective:</strong> To assess the effect of different stocking densities on the productive performance of native fish juveniles of blackstripe cichlid (<em>Vieja fenestrata</em>).<em> </em><strong>Methodology:</strong> A one-factor randomized experimental design was used, evaluating in triplicate four stocking densities, 0.5 (L), 2 (M), 4 (H) and 6 (S) juvenile L^-1. The experiment lasted 30 days. Wet weight and total length were registered every 15 days and growth performance indices were obtained. <strong>Results:</strong> Growth and survival were superior (P<0.05) for densities L and M. However, the M density showed a higher (P<0.05) growth rate, weight gain, and condition factor. <strong>Implications:</strong> The stocking density showed an apparent effect on the growth and survival of juveniles of the blackstripe cichlid, with the M density showing the best results; however, a cost-benefit assessment is required before starting production of this tropical native species. <strong>Conclusion:</strong> Our results suggest that a territorial and/or food competition was probably responsible for the survival and growth obtained. Although more studies are required, it appears that <em>Vieja fenestrata</em> showed the typical patrons of behaviour of another most famous cichlids, as Nile tilapia, with high levels of aggression that depend on stoking density.  </span></span></p>","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"140 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140481330","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":"ANÁLISIS DEL CRECIMIENTO DE CULTIVARES DE CAÑA DE AZÚCAR A TRAVÉS DE LA EVALUACIÓN DEL RENDIMIENTO Y MATERIA SECA","authors":"J. Izquierdo-Hernández, S. Córdova-Sánchez, L. D. C. Lagunes-Espinoza, D. Palma-López, J. J. Peña-Cabriales","doi":"10.56369/tsaes.5129","DOIUrl":"https://doi.org/10.56369/tsaes.5129","url":null,"abstract":"Background: The production of aboveground biomass of sugarcane is mainly due to the interactions between edaphic, climatic, and genetic factors. Objective: To evaluate the growth of three sugarcane cultivars through the evaluation of yield and dry matter accumulation, during the template and soca cultivation cycles, in the supply area of the Santa Rosalía de la Chontalpa Sugar Mill. Methodology: In the supply area of the Santa Rosalia de la Chontalpa Sugar Mill (ISRCH), Tabasco, an experiment was established under rainfed conditions, during two cycles (plantilla and soca), with three cultivars (MEX69-290, MEX79-431 and CP72-2086), established in a eutric Fluvisol soil. In each plot, five observation sites of 30 x 30 m were set up, in which the production of stems and biomass was determined. Results: In the plant cycle, the cane yield at 450 days after sowing (DAS) followed the following order CP72-2086> MEX79-431> MEX69-290 with 144.73, 130.09 and 94.18 t ha-1, respectively. On the contrary, in ratoon 360 days after harvest (DAH), MEX69-290 presented higher stem yield. In ratoon cycle, the stems yield decreased 14.5, 30.9 and 32.5% for MEX69-290, MEX79-431 and CP72-2086, respectively, compared to the plant cycle. The maximum absolute growth rate reached by the evaluated cultivars was 187, 192 and 262 kg ha-1 day-1 at 210 DAS in the plant cycle and 193, 177 and 151 kg ha-1 day-1 at 180 DAH in ratoon cycle for MEX69-290, CP72-2086 and MEX79-431, respectively. Implications: This allows knowing the growth rate of sugarcane cultivation in the humid tropics. Conclusions: The yield and harvest index of sugarcane varies with respect to the age of the crop (Cycle) and the cultivar.","PeriodicalId":23259,"journal":{"name":"Tropical and Subtropical Agroecosystems","volume":"125 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140485214","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}