Pub Date : 2024-02-06DOI: 10.47163/agrociencia.v58i1.2866
J. J. Arana-Coronado, Estefanía Hernández-Ruíz, Roberto Carlos García-Sánchez, Roxana Mondragón-Hernández
The growing demand for value-added agrifood products, combined with a changing economic environment and greater uncertainty, requires the application of flexible valuation methods that reflect the real value of an asset in the face of changes in investment. The objective of this study is to determine the impact of hibiscus (Hibiscus sabdariffa L.) price volatility on the decision to carry out a productive reconversion by low-income farmers who conventionally grow hibiscus in association with maize. It is stated that the producer will have greater incentives and will opt for a productive reconversion as the volatility of conventional hibiscus prices increases. This study was conducted in the state of Guerrero, Mexico, in 2020. Information on prices, yields, production, and harvesting costs was obtained from databases and interviews with producers. The interviews were conducted using the focus group method, while the binomial method was used to apply the option theory. The results revealed that the productive reconversion was profitable in no less than seven years. Additionally, a variation in volatility from 0.15 to 0.30 increased the likelihood of conventional hibiscus producers facing low prices by 27 to 44 %, improving the incentive to adopt a higher-quality production system. Therefore, it is confirmed that the real options theory is sufficiently flexible to model the impact of price volatility on producer investment decisions, in addition to providing a better understanding of low-income producers’ decisions to implement a productive reconversion system.
{"title":"REAL OPTIONS AND PRODUCTIVE RECONVERSION BY LOW-INCOME PRODUCERS: THE CASE OF HIBISCUS IN GUERRERO, MEXICO","authors":"J. J. Arana-Coronado, Estefanía Hernández-Ruíz, Roberto Carlos García-Sánchez, Roxana Mondragón-Hernández","doi":"10.47163/agrociencia.v58i1.2866","DOIUrl":"https://doi.org/10.47163/agrociencia.v58i1.2866","url":null,"abstract":"The growing demand for value-added agrifood products, combined with a changing economic environment and greater uncertainty, requires the application of flexible valuation methods that reflect the real value of an asset in the face of changes in investment. The objective of this study is to determine the impact of hibiscus (Hibiscus sabdariffa L.) price volatility on the decision to carry out a productive reconversion by low-income farmers who conventionally grow hibiscus in association with maize. It is stated that the producer will have greater incentives and will opt for a productive reconversion as the volatility of conventional hibiscus prices increases. This study was conducted in the state of Guerrero, Mexico, in 2020. Information on prices, yields, production, and harvesting costs was obtained from databases and interviews with producers. The interviews were conducted using the focus group method, while the binomial method was used to apply the option theory. The results revealed that the productive reconversion was profitable in no less than seven years. Additionally, a variation in volatility from 0.15 to 0.30 increased the likelihood of conventional hibiscus producers facing low prices by 27 to 44 %, improving the incentive to adopt a higher-quality production system. Therefore, it is confirmed that the real options theory is sufficiently flexible to model the impact of price volatility on producer investment decisions, in addition to providing a better understanding of low-income producers’ decisions to implement a productive reconversion system.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139801626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-06DOI: 10.47163/agrociencia.v58i1.2866
J. J. Arana-Coronado, Estefanía Hernández-Ruíz, Roberto Carlos García-Sánchez, Roxana Mondragón-Hernández
The growing demand for value-added agrifood products, combined with a changing economic environment and greater uncertainty, requires the application of flexible valuation methods that reflect the real value of an asset in the face of changes in investment. The objective of this study is to determine the impact of hibiscus (Hibiscus sabdariffa L.) price volatility on the decision to carry out a productive reconversion by low-income farmers who conventionally grow hibiscus in association with maize. It is stated that the producer will have greater incentives and will opt for a productive reconversion as the volatility of conventional hibiscus prices increases. This study was conducted in the state of Guerrero, Mexico, in 2020. Information on prices, yields, production, and harvesting costs was obtained from databases and interviews with producers. The interviews were conducted using the focus group method, while the binomial method was used to apply the option theory. The results revealed that the productive reconversion was profitable in no less than seven years. Additionally, a variation in volatility from 0.15 to 0.30 increased the likelihood of conventional hibiscus producers facing low prices by 27 to 44 %, improving the incentive to adopt a higher-quality production system. Therefore, it is confirmed that the real options theory is sufficiently flexible to model the impact of price volatility on producer investment decisions, in addition to providing a better understanding of low-income producers’ decisions to implement a productive reconversion system.
{"title":"REAL OPTIONS AND PRODUCTIVE RECONVERSION BY LOW-INCOME PRODUCERS: THE CASE OF HIBISCUS IN GUERRERO, MEXICO","authors":"J. J. Arana-Coronado, Estefanía Hernández-Ruíz, Roberto Carlos García-Sánchez, Roxana Mondragón-Hernández","doi":"10.47163/agrociencia.v58i1.2866","DOIUrl":"https://doi.org/10.47163/agrociencia.v58i1.2866","url":null,"abstract":"The growing demand for value-added agrifood products, combined with a changing economic environment and greater uncertainty, requires the application of flexible valuation methods that reflect the real value of an asset in the face of changes in investment. The objective of this study is to determine the impact of hibiscus (Hibiscus sabdariffa L.) price volatility on the decision to carry out a productive reconversion by low-income farmers who conventionally grow hibiscus in association with maize. It is stated that the producer will have greater incentives and will opt for a productive reconversion as the volatility of conventional hibiscus prices increases. This study was conducted in the state of Guerrero, Mexico, in 2020. Information on prices, yields, production, and harvesting costs was obtained from databases and interviews with producers. The interviews were conducted using the focus group method, while the binomial method was used to apply the option theory. The results revealed that the productive reconversion was profitable in no less than seven years. Additionally, a variation in volatility from 0.15 to 0.30 increased the likelihood of conventional hibiscus producers facing low prices by 27 to 44 %, improving the incentive to adopt a higher-quality production system. Therefore, it is confirmed that the real options theory is sufficiently flexible to model the impact of price volatility on producer investment decisions, in addition to providing a better understanding of low-income producers’ decisions to implement a productive reconversion system.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139861346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01DOI: 10.47163/agrociencia.v58i1.2968
Luis Gustavo Gil-Mendoza, J. Ramírez-Albores, A. Burgara-Estrella, Jaqueline Garcia-Hernández
Intensive agriculture has had a negative impact on biodiversity and human health across the world. Specifically, bird populations have declined for many years due to soil degradation and agrochemical pollution. This review, which draws on 890 sources, including research articles and literature reviews, examines the interaction between birds and intensive agriculture to better understand its effects and conservation implications. Intensive agricultural activities have resulted in significant population declines among insectivorous and carnivorous birds, while generalist bird populations have increased. The heavy use of pesticides in intensive agriculture affects food availability for birds by reducing invertebrate and vertebrate populations as well as natural vegetation cover, which has a significant impact on bird diversity. Additionally, the accumulation of toxic compounds reduces bird reproductive success. In general, intensive agroecosystems have consistently had lower avian diversity than forest habitats and even lower-impact agricultural systems. However, some agroecosystems, such as rice fields, agricultural drainages, and canal systems, create alternative habitats that can benefit waterfowl. Future work should consider strategies such as restoring and enhancing vegetation edges, preserving natural vegetation, implementing organic farming practices, maintaining water bodies, and providing economic incentives for landowners to conserve biodiversity on their land to promote bird diversity conservation.
{"title":"IMPACTS OF INTENSIVE AGRICULTURE ON BIRDS: A REVIEW","authors":"Luis Gustavo Gil-Mendoza, J. Ramírez-Albores, A. Burgara-Estrella, Jaqueline Garcia-Hernández","doi":"10.47163/agrociencia.v58i1.2968","DOIUrl":"https://doi.org/10.47163/agrociencia.v58i1.2968","url":null,"abstract":"Intensive agriculture has had a negative impact on biodiversity and human health across the world. Specifically, bird populations have declined for many years due to soil degradation and agrochemical pollution. This review, which draws on 890 sources, including research articles and literature reviews, examines the interaction between birds and intensive agriculture to better understand its effects and conservation implications. Intensive agricultural activities have resulted in significant population declines among insectivorous and carnivorous birds, while generalist bird populations have increased. The heavy use of pesticides in intensive agriculture affects food availability for birds by reducing invertebrate and vertebrate populations as well as natural vegetation cover, which has a significant impact on bird diversity. Additionally, the accumulation of toxic compounds reduces bird reproductive success. In general, intensive agroecosystems have consistently had lower avian diversity than forest habitats and even lower-impact agricultural systems. However, some agroecosystems, such as rice fields, agricultural drainages, and canal systems, create alternative habitats that can benefit waterfowl. Future work should consider strategies such as restoring and enhancing vegetation edges, preserving natural vegetation, implementing organic farming practices, maintaining water bodies, and providing economic incentives for landowners to conserve biodiversity on their land to promote bird diversity conservation.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139823151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01DOI: 10.47163/agrociencia.v58i1.2968
Luis Gustavo Gil-Mendoza, J. Ramírez-Albores, A. Burgara-Estrella, Jaqueline Garcia-Hernández
Intensive agriculture has had a negative impact on biodiversity and human health across the world. Specifically, bird populations have declined for many years due to soil degradation and agrochemical pollution. This review, which draws on 890 sources, including research articles and literature reviews, examines the interaction between birds and intensive agriculture to better understand its effects and conservation implications. Intensive agricultural activities have resulted in significant population declines among insectivorous and carnivorous birds, while generalist bird populations have increased. The heavy use of pesticides in intensive agriculture affects food availability for birds by reducing invertebrate and vertebrate populations as well as natural vegetation cover, which has a significant impact on bird diversity. Additionally, the accumulation of toxic compounds reduces bird reproductive success. In general, intensive agroecosystems have consistently had lower avian diversity than forest habitats and even lower-impact agricultural systems. However, some agroecosystems, such as rice fields, agricultural drainages, and canal systems, create alternative habitats that can benefit waterfowl. Future work should consider strategies such as restoring and enhancing vegetation edges, preserving natural vegetation, implementing organic farming practices, maintaining water bodies, and providing economic incentives for landowners to conserve biodiversity on their land to promote bird diversity conservation.
{"title":"IMPACTS OF INTENSIVE AGRICULTURE ON BIRDS: A REVIEW","authors":"Luis Gustavo Gil-Mendoza, J. Ramírez-Albores, A. Burgara-Estrella, Jaqueline Garcia-Hernández","doi":"10.47163/agrociencia.v58i1.2968","DOIUrl":"https://doi.org/10.47163/agrociencia.v58i1.2968","url":null,"abstract":"Intensive agriculture has had a negative impact on biodiversity and human health across the world. Specifically, bird populations have declined for many years due to soil degradation and agrochemical pollution. This review, which draws on 890 sources, including research articles and literature reviews, examines the interaction between birds and intensive agriculture to better understand its effects and conservation implications. Intensive agricultural activities have resulted in significant population declines among insectivorous and carnivorous birds, while generalist bird populations have increased. The heavy use of pesticides in intensive agriculture affects food availability for birds by reducing invertebrate and vertebrate populations as well as natural vegetation cover, which has a significant impact on bird diversity. Additionally, the accumulation of toxic compounds reduces bird reproductive success. In general, intensive agroecosystems have consistently had lower avian diversity than forest habitats and even lower-impact agricultural systems. However, some agroecosystems, such as rice fields, agricultural drainages, and canal systems, create alternative habitats that can benefit waterfowl. Future work should consider strategies such as restoring and enhancing vegetation edges, preserving natural vegetation, implementing organic farming practices, maintaining water bodies, and providing economic incentives for landowners to conserve biodiversity on their land to promote bird diversity conservation.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139882829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-05DOI: 10.47163/agrociencia.v58i1.2822
L. Ledesma-Ramírez, E. Solís-Moya, L. Mariscal-Amaro, A. J. Gámez-Vázquez, J. F. Buenrostro-Rodríguez, S. S. González-Figueroa, Isnelda Elizabeth Quiñones-Martinez
Wheat (Triticum aestivum L.) provides approximately 20 % of the proteins and calories consumed globally. Genetic advancement in yield is crucial to satisfy the demand of the growing world population. The aim of this study was to estimate genetic progress in agronomic traits of varieties released in El Bajío (Mexico) between 1975 and 2016 under normal and restricted irrigation. The hypothesis was: with the breeding of wheat varieties for over 40 years for the region of El Bajío, advances have been made in grain yield. The genotypes planted were Salamanca S75, Cortazar S94, Bárcenas S2002, Urbina S2007, Alondra F2014 and Cisne F2016 during the 2016-17 and 2020-21 agricultural cycles in three irrigation schedules, two at 0 and 55 days after planting, three at 0-45 and 75 and four at 0-45-75 and 100 days after planting. Phenology, yield and its components were measured, and the treatment design followed a randomized complete block design with arrangements in subdivided plots and three replications. Using the weighted phenotypic model and its graphical representation through the SREG biplot, it was determined that recently released varieties outperformed the grain yield of older varieties in all three irrigation schedules. The varieties released between 1975 and 2016 displayed no changes in days to heading and maturity, since only early genotypes were advanced in the selection process. For grain yield, a genetic progress was obtained of 26.3, 41.6 and 37.6 kg ha-1 year-1 for the two, three and four irrigation schedules, respectively, which was related to an increase (p ≤ 0.01) in aerial biomass and a higher number of spikes and grains per unit area.
{"title":"GENETIC ADVANCEMENT IN BREAD WHEAT VARIETIES RELEASED FOR THE BAJÍO REGION (MEXICO) UNDER NORMAL AND RESTRICTED IRRIGATION","authors":"L. Ledesma-Ramírez, E. Solís-Moya, L. Mariscal-Amaro, A. J. Gámez-Vázquez, J. F. Buenrostro-Rodríguez, S. S. González-Figueroa, Isnelda Elizabeth Quiñones-Martinez","doi":"10.47163/agrociencia.v58i1.2822","DOIUrl":"https://doi.org/10.47163/agrociencia.v58i1.2822","url":null,"abstract":"Wheat (Triticum aestivum L.) provides approximately 20 % of the proteins and calories consumed globally. Genetic advancement in yield is crucial to satisfy the demand of the growing world population. The aim of this study was to estimate genetic progress in agronomic traits of varieties released in El Bajío (Mexico) between 1975 and 2016 under normal and restricted irrigation. The hypothesis was: with the breeding of wheat varieties for over 40 years for the region of El Bajío, advances have been made in grain yield. The genotypes planted were Salamanca S75, Cortazar S94, Bárcenas S2002, Urbina S2007, Alondra F2014 and Cisne F2016 during the 2016-17 and 2020-21 agricultural cycles in three irrigation schedules, two at 0 and 55 days after planting, three at 0-45 and 75 and four at 0-45-75 and 100 days after planting. Phenology, yield and its components were measured, and the treatment design followed a randomized complete block design with arrangements in subdivided plots and three replications. Using the weighted phenotypic model and its graphical representation through the SREG biplot, it was determined that recently released varieties outperformed the grain yield of older varieties in all three irrigation schedules. The varieties released between 1975 and 2016 displayed no changes in days to heading and maturity, since only early genotypes were advanced in the selection process. For grain yield, a genetic progress was obtained of 26.3, 41.6 and 37.6 kg ha-1 year-1 for the two, three and four irrigation schedules, respectively, which was related to an increase (p ≤ 0.01) in aerial biomass and a higher number of spikes and grains per unit area.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139383286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-13DOI: 10.47163/agrociencia.v57i8.2956
N. Al-Dosary, Alex Greg Zolotorevskiy, Cassidy Paul Schram
The flight instability of an uncrewed aerial vehicle (UAV) can be considered critical, and investigations of stability can be compared to the study of the stabilization of an inverted pendulum. This study investigated the stability of two dynamic systems, represented by an inverted pendulum and a simple approximation of an aircraft wing surface exposed to aerodynamic forces. This study illustrates the advantages of time-domain simulation for solving the differential equation of motion. The simulation used the Euler integration approach for various system parameters. Essentially, an aircraft in flight must constantly maintain pitch stability, which, in practical considerations, can be compared to the mechanism of a rotary motion represented by the up-swinging motion of an inverted pendulum. The pendulum may conserve the same concept as an aircraft’s acceleration, as both are affected by the same gravity and acceleration forces, in which the longitudinal stability of the aircraft must be ensured immediately upon takeoff. An inverted pendulum and a UAV aircraft system simulation were developed with basic MATLAB software. The inverted pendulum simulation showed that as the value of the spring’s stiffness at the limit of stability (klim) increased, the system became more convergent and, as a result, more stable. The stiffness of the spring at the limit of stability, klim = 32.69 N m-1 (i.e., equivalent to an initial angular rotation θ = 5 °), and the system’s stability were observed up to the value of klim = 179.79 N m-1, which resulted in an unstable short initial period. In addition, for the aircraft’s wing, the damping coefficient (clim) value was in the range of clim ≥ 10,000 N s m-1. Therefore, with the damping ratio ζ being equal to zero, the system vibrated consistently at its natural frequency (wn), never deviating drastically to become unstable.
无人驾驶航空飞行器（UAV）的飞行不稳定性可谓至关重要，其稳定性研究可与倒立摆的稳定性研究相提并论。本研究调查了两个动态系统的稳定性，一个是倒立摆，另一个是受空气动力影响的飞机机翼表面的简单近似值。这项研究说明了时域模拟在求解运动微分方程方面的优势。模拟采用欧拉积分法计算各种系统参数。从本质上讲，飞行中的飞机必须不断保持俯仰稳定性，在实际考虑中，这可以比作以倒立摆的上摆运动为代表的旋转运动机制。钟摆可以保持与飞机加速度相同的概念，因为两者都受到相同的重力和加速度力的影响，在这种情况下，飞机起飞后必须立即确保纵向稳定性。利用基本的 MATLAB 软件开发了倒立摆和无人驾驶飞行器系统仿真。倒立摆模拟显示，随着稳定极限弹簧刚度（klim）值的增加，系统变得更加收敛，从而更加稳定。稳定极限时的弹簧刚度 klim = 32.69 N m-1（即相当于初始角旋转 θ = 5°），系统的稳定性观察到 klim = 179.79 N m-1，该值导致初始短周期不稳定。此外，飞机机翼的阻尼系数（clim）值在 clim ≥ 10,000 N s m-1 的范围内。因此，在阻尼比 ζ 等于零的情况下，系统振动始终保持在其固有频率（wn）上，从未出现过大的偏差而变得不稳定。
{"title":"FUNCTIONAL STABILITY OF THE INVERTED PENDULUM AND ITS RELATION TO UNCREWED AERIAL VEHICLE WINGS THROUGH SYSTEM MATHEMATICAL MODELING AND SIMULATION","authors":"N. Al-Dosary, Alex Greg Zolotorevskiy, Cassidy Paul Schram","doi":"10.47163/agrociencia.v57i8.2956","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i8.2956","url":null,"abstract":"The flight instability of an uncrewed aerial vehicle (UAV) can be considered critical, and investigations of stability can be compared to the study of the stabilization of an inverted pendulum. This study investigated the stability of two dynamic systems, represented by an inverted pendulum and a simple approximation of an aircraft wing surface exposed to aerodynamic forces. This study illustrates the advantages of time-domain simulation for solving the differential equation of motion. The simulation used the Euler integration approach for various system parameters. Essentially, an aircraft in flight must constantly maintain pitch stability, which, in practical considerations, can be compared to the mechanism of a rotary motion represented by the up-swinging motion of an inverted pendulum. The pendulum may conserve the same concept as an aircraft’s acceleration, as both are affected by the same gravity and acceleration forces, in which the longitudinal stability of the aircraft must be ensured immediately upon takeoff. An inverted pendulum and a UAV aircraft system simulation were developed with basic MATLAB software. The inverted pendulum simulation showed that as the value of the spring’s stiffness at the limit of stability (klim) increased, the system became more convergent and, as a result, more stable. The stiffness of the spring at the limit of stability, klim = 32.69 N m-1 (i.e., equivalent to an initial angular rotation θ = 5 °), and the system’s stability were observed up to the value of klim = 179.79 N m-1, which resulted in an unstable short initial period. In addition, for the aircraft’s wing, the damping coefficient (clim) value was in the range of clim ≥ 10,000 N s m-1. Therefore, with the damping ratio ζ being equal to zero, the system vibrated consistently at its natural frequency (wn), never deviating drastically to become unstable.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138976339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.47163/agrociencia.v57i8.3028
N. Real-Luna, J. Rivera-Hernández, G. Alcántara-Salinas, J. Pérez-Sato, Edgardo Zalazar-Marcial, Miguel Ignacio Delgado-Blancas, Amauri Díaz-Solís
Pollinators depend on the melliferous flora for food, in return, flowers are pollinated, which contributes for the maintenance of ecosystems and conservation of biodiversity, increasing food production and ensuring food security. This research aims to provide an inventory of melliferous flora and its annual availability in Cervantes y Lozada, Córdoba, Veracruz, Mexico. During 26 months, the plants interacting with bees were collected on defined rural roads; we also documented the resource provided by the flowers (pollen, honey, etc.), their origin (native or exotic), life form and flowering periods. From 122 collections, 76 melliferous species were inventoried, grouped in 74 genera and 35 botanical families, being Asteraceae (25 %) the family with more species, followed by Malvaceae (9.21 %) and Lamiaceae (7.89 %); 67.11 % are polliniferous, 7.86 % nectariferous, and 25 % provide both; 82.89 % are native and 17.11 % exotic; 15.79 % are trees, 28.95 % shrubs and 55.26 % herbs. Seven species provided resources for bees all year round, two for 10 months and the rest for shorter periods. The flora species that were inventoried have different uses, so it is important to protect and promote the sustainable management of the melliferous flora, which is essential for the conservation of the pollination service, which in turn is essential for agriculture and ecosystems, in addition to protecting species of social, ecological, and economic importance.
{"title":"FLORISTIC INVENTORY AND ANNUAL AVAILABILITY OF MELLIFEROUS FLORA IN CERVANTES Y LOZADA, CORDOBA MUNICIPALITY, VERACRUZ, MEXICO","authors":"N. Real-Luna, J. Rivera-Hernández, G. Alcántara-Salinas, J. Pérez-Sato, Edgardo Zalazar-Marcial, Miguel Ignacio Delgado-Blancas, Amauri Díaz-Solís","doi":"10.47163/agrociencia.v57i8.3028","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i8.3028","url":null,"abstract":"Pollinators depend on the melliferous flora for food, in return, flowers are pollinated, which contributes for the maintenance of ecosystems and conservation of biodiversity, increasing food production and ensuring food security. This research aims to provide an inventory of melliferous flora and its annual availability in Cervantes y Lozada, Córdoba, Veracruz, Mexico. During 26 months, the plants interacting with bees were collected on defined rural roads; we also documented the resource provided by the flowers (pollen, honey, etc.), their origin (native or exotic), life form and flowering periods. From 122 collections, 76 melliferous species were inventoried, grouped in 74 genera and 35 botanical families, being Asteraceae (25 %) the family with more species, followed by Malvaceae (9.21 %) and Lamiaceae (7.89 %); 67.11 % are polliniferous, 7.86 % nectariferous, and 25 % provide both; 82.89 % are native and 17.11 % exotic; 15.79 % are trees, 28.95 % shrubs and 55.26 % herbs. Seven species provided resources for bees all year round, two for 10 months and the rest for shorter periods. The flora species that were inventoried have different uses, so it is important to protect and promote the sustainable management of the melliferous flora, which is essential for the conservation of the pollination service, which in turn is essential for agriculture and ecosystems, in addition to protecting species of social, ecological, and economic importance.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-08DOI: 10.47163/agrociencia.v57i8.2946
Marco Antonio Villegas-Olguín, R. Mendoza-Villarreal, A. Benavides-Mendoza, H. T. García-Osuna, M. Cabrera-De la Fuente, V. Robledo-Torres
Flower cultivation has increased nationwide. Currently, species of the Dahlia genus (known colloquially as Dahlias) are grown for ornamental purposes, with central Mexico having the highest production rate. Due to its importance, we sought to evaluate the effect of three different methods of cultivation (shade net, greenhouse, and open field) on the growth and development of four dahlia varieties in Saltillo, Coahuila, Mexico. The experiment was carried out at the Horticulture Department of the Universidad Autónoma Agraria Antonio Narro. Tuberous roots of four D. pinnata varieties were sown directly into the soil and covered with mulch. The shade netting production environment proved to be the best in production, with the best results in plant height, stem diameter, number of leaves, and days to flowering. The highest-performing cultivar was the Antje variety. On the other hand, the Antje variety (cultivated under shade netting) had the longest flower stalks, the Boy Mick variety (cultivated in the greenhouse) had the heaviest flowers, and the Canby Centennial variety (cultivated in open field) had the flowers with the thickest stalks. The results show that Dahlias can be grown in northeastern Mexico because the area meets suitable conditions for crop development and production.
花卉种植在全国范围内有所增加。目前，大丽花属(俗称大丽花)的品种是为了观赏目的而种植的，墨西哥中部的产量最高。鉴于其重要性，我们试图评估三种不同的栽培方法(遮阳网、温室和露天田)对墨西哥科阿韦拉州萨尔提略四种大丽花品种生长发育的影响。这项实验是在Autónoma agaria Antonio Narro大学园艺系进行的。将4个羽石楠品种的块根直接播种到土壤中，并覆盖地膜。结果表明，遮阳网生产环境在生产上效果最好，在株高、茎粗、叶数和开花天数上效果最好。表现最好的品种是安特杰品种。另一方面，遮荫栽培的Antje品种花柄最长，温室栽培的Boy Mick品种花最重，露天栽培的Canby Centennial品种花柄最粗。结果表明，墨西哥东北部地区具有适宜的作物发育和生产条件，可以种植大丽花。
{"title":"AGRONOMIC RESPONSE OF FOUR Dahlia pinnata Cav. (Asteraceae) VARIETIES IN THREE PRODUCTION ENVIRONMENTS","authors":"Marco Antonio Villegas-Olguín, R. Mendoza-Villarreal, A. Benavides-Mendoza, H. T. García-Osuna, M. Cabrera-De la Fuente, V. Robledo-Torres","doi":"10.47163/agrociencia.v57i8.2946","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i8.2946","url":null,"abstract":"Flower cultivation has increased nationwide. Currently, species of the Dahlia genus (known colloquially as Dahlias) are grown for ornamental purposes, with central Mexico having the highest production rate. Due to its importance, we sought to evaluate the effect of three different methods of cultivation (shade net, greenhouse, and open field) on the growth and development of four dahlia varieties in Saltillo, Coahuila, Mexico. The experiment was carried out at the Horticulture Department of the Universidad Autónoma Agraria Antonio Narro. Tuberous roots of four D. pinnata varieties were sown directly into the soil and covered with mulch. The shade netting production environment proved to be the best in production, with the best results in plant height, stem diameter, number of leaves, and days to flowering. The highest-performing cultivar was the Antje variety. On the other hand, the Antje variety (cultivated under shade netting) had the longest flower stalks, the Boy Mick variety (cultivated in the greenhouse) had the heaviest flowers, and the Canby Centennial variety (cultivated in open field) had the flowers with the thickest stalks. The results show that Dahlias can be grown in northeastern Mexico because the area meets suitable conditions for crop development and production.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138587830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-05DOI: 10.47163/agrociencia.v57i8.2784
Orlando José Martínez-Canto, J. Cristóbal-Alejo, J. Tun-Suárez, A. Reyes-Ramírez
In this study, the antagonistic potential of Trichoderma erinaceum 10-15 and T. virens 32-09 against the nematode Meloidogyne incognita was evaluated in tomato (Solanum lycopersicum L.) plants. A solution of 106 conidia mL-1 of each strain was inoculated on tomato plants, and the variables of nematode control, galling index, eggs per gram of root, and females per gram of root were determined. The in vitro antagonism of Trichoderma filtrates on the hatching of eggs and J2 juveniles of M. incognita was evaluated. The results were used for analysis of variance and comparison of means using the Tukey method (p ≤ 0.05). Control variables of the phytopathogen on S. lycopersicum were determined by measuring the area under the disease progress curve (AUDPC), the Weibull parameter, the coefficient of determination, and the final severity of root damage. T. erinaceum 10-15 showed a greater inhibitory effect on M. incognita, relative to T. virens 32-09. Both strains evaluated showed significant differences in comparison to the uninoculated control, resulting in a 60 % reduction in juvenile stage mobility and egg hatching, as well as greater control of the phytonematode in the AUDPC variables, Weibull parameter, and final severity under controlled conditions. The strain T. erinaceum 10-15 showed a better antagonistic effect on egg formation at 68 days, at 60.3 %, and on reducing the number of M. incognita females with at 60 days, at 80.6 %. Both T. erinaceum 10-15 and T. virens 32-09 were found to be potential biocontrol agents of M. incognita in S. lycopersicum.
{"title":"Trichoderma erinaceum AND Trichoderma virens IN THE CONTROL OF Meloidogyne incognita IN Solanum lycopersicum","authors":"Orlando José Martínez-Canto, J. Cristóbal-Alejo, J. Tun-Suárez, A. Reyes-Ramírez","doi":"10.47163/agrociencia.v57i8.2784","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i8.2784","url":null,"abstract":"In this study, the antagonistic potential of Trichoderma erinaceum 10-15 and T. virens 32-09 against the nematode Meloidogyne incognita was evaluated in tomato (Solanum lycopersicum L.) plants. A solution of 106 conidia mL-1 of each strain was inoculated on tomato plants, and the variables of nematode control, galling index, eggs per gram of root, and females per gram of root were determined. The in vitro antagonism of Trichoderma filtrates on the hatching of eggs and J2 juveniles of M. incognita was evaluated. The results were used for analysis of variance and comparison of means using the Tukey method (p ≤ 0.05). Control variables of the phytopathogen on S. lycopersicum were determined by measuring the area under the disease progress curve (AUDPC), the Weibull parameter, the coefficient of determination, and the final severity of root damage. T. erinaceum 10-15 showed a greater inhibitory effect on M. incognita, relative to T. virens 32-09. Both strains evaluated showed significant differences in comparison to the uninoculated control, resulting in a 60 % reduction in juvenile stage mobility and egg hatching, as well as greater control of the phytonematode in the AUDPC variables, Weibull parameter, and final severity under controlled conditions. The strain T. erinaceum 10-15 showed a better antagonistic effect on egg formation at 68 days, at 60.3 %, and on reducing the number of M. incognita females with at 60 days, at 80.6 %. Both T. erinaceum 10-15 and T. virens 32-09 were found to be potential biocontrol agents of M. incognita in S. lycopersicum.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138600391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-04DOI: 10.47163/agrociencia.v57i8.3077
María Magdalena Nevárez-Favela, J. C. García-Albarado, A. Quevedo-Nolasco, Adolfo López-Pérez, M. Bolaños-González
Integrating green walls (GWs) and green roofs (GRs) into urban areas enables several sustainable development objectives to be met. However, there is little research on the aesthetic perception and environmental and psychological benefits that users assign to these greening systems. Therefore, this paper evaluated the perception towards these two green infrastructures, GWs and GRs. The research was conducted via the Internet through a semi-structured survey with Likert scale questions, with a total of 243 participants. The results revealed that approximately 90 % of the participants have a positive perception of GWs and GRs. The psychological and environmental benefits of greening in urban environments are recognized, such as creating habitats for small species, reducing stress, and improving mood, among others. Some significant differences were seen in some socioeconomic aspects, such as age, gender and educational level. Women showed a tendency to find calm when in contact with plants, while the tendency for men is more neutral. Participants with a lower educational level, secondary school and a technical career, do not fully agree that nature positively affects their mood. In general, green walls were found to be preferred to green roofs; however, it is suggested to consider incorporating more colors, flowers and a greater variety of plants to improve the aesthetics of these structures.
{"title":"PERCEPTION OF GREEN INFRASTRUCTURE SYSTEMS: GREEN WALLS AND GREEN ROOFS","authors":"María Magdalena Nevárez-Favela, J. C. García-Albarado, A. Quevedo-Nolasco, Adolfo López-Pérez, M. Bolaños-González","doi":"10.47163/agrociencia.v57i8.3077","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i8.3077","url":null,"abstract":"Integrating green walls (GWs) and green roofs (GRs) into urban areas enables several sustainable development objectives to be met. However, there is little research on the aesthetic perception and environmental and psychological benefits that users assign to these greening systems. Therefore, this paper evaluated the perception towards these two green infrastructures, GWs and GRs. The research was conducted via the Internet through a semi-structured survey with Likert scale questions, with a total of 243 participants. The results revealed that approximately 90 % of the participants have a positive perception of GWs and GRs. The psychological and environmental benefits of greening in urban environments are recognized, such as creating habitats for small species, reducing stress, and improving mood, among others. Some significant differences were seen in some socioeconomic aspects, such as age, gender and educational level. Women showed a tendency to find calm when in contact with plants, while the tendency for men is more neutral. Participants with a lower educational level, secondary school and a technical career, do not fully agree that nature positively affects their mood. In general, green walls were found to be preferred to green roofs; however, it is suggested to consider incorporating more colors, flowers and a greater variety of plants to improve the aesthetics of these structures.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138602819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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