Agrociencia最新文献_第8页

TRADITIONAL AND UPDATED EVALUATION OF THE RANGELAND SITE AND CONDITION IN THE SEMIARID SCRUB OF THE HIGH PLATEAU 高原半干旱灌丛草地立地与条件的传统与新评价

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-30 DOI: 10.47163/agrociencia.v57i3.2620

J. R. Aguirre-Rivera, L. O. Negrete-Sánchez, R. Castro-Rivera

{"title":"TRADITIONAL AND UPDATED EVALUATION OF THE RANGELAND SITE AND CONDITION IN THE SEMIARID SCRUB OF THE HIGH PLATEAU","authors":"J. R. Aguirre-Rivera, L. O. Negrete-Sánchez, R. Castro-Rivera","doi":"10.47163/agrociencia.v57i3.2620","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i3.2620","url":null,"abstract":"In Mexico, the concepts of rangeland site and condition are not well known. For this reason, most of the rangelands of private ranches on the high plateau of San Luis Potosí and Zacatecas are undergoing a process of severe generalized deterioration. The purpose of this study was to survey and characterize multi-branched rangeland sites of three beef cattle ranches on the San Luis Potosí-Zacatecas High Plateau, as well as to assess their condition using a quantitative ecological method complemented by updated technological tools. The hypothesis proposed was that the site and condition of rangeland evaluated with the quantitative ecological method (used for grasslands and soil), complemented by updated technology, are also identifiable in multi-branched rangelands of this type of production units on the San Luis Potosí-Zacatecas High Plateau. Based on a Landsat satellite image, an unsupervised classification process was performed for the three ranches, which was then confirmed by field observations. A total of 11 sites were surveyed, three on each ranch (microphyll desert scrub, predominantly Bouteloua gracilis; microphyll desert scrub, with predominance of Sporobolus airoides; and an ecotone between microphyll desert scrub and rosetophile desert scrub) and two exclusive locations (crassicaule scrub and rosetophile desert scrub with predominance of Muhlenbergia villiflora). Rangeland condition was evaluated by measuring density and volume (volumetric biomass) of the main plant species, categorized by forage value, and the actual state of the soil surface was assessed in terms of bare soil and vegetation, litter, feces and rock cover. The data were ordered and classified with the DECORANA and TWINSPAN modules from the PC-ORD program. Site and condition evaluation under this approach was satisfactory for surveying the state of the rangelands of the three private cattle ranches studied on the San Luis Potosí-Zacatecas High Plateau.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88783264","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}

引用次数: 0

CLIMATE CHANGE AND ITS EFFECTS ON AGRICULTURE IN MEXICO 气候变化及其对墨西哥农业的影响

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-21 DOI: 10.47163/agrociencia.v57i2.2523

Marisol Hernández-Rodríguez, José Luis Romo-Lozano, Gerónimo Barrios-Puente, C. M. Cuevas-Alvarado

{"title":"CLIMATE CHANGE AND ITS EFFECTS ON AGRICULTURE IN MEXICO","authors":"Marisol Hernández-Rodríguez, José Luis Romo-Lozano, Gerónimo Barrios-Puente, C. M. Cuevas-Alvarado","doi":"10.47163/agrociencia.v57i2.2523","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i2.2523","url":null,"abstract":"Climate change is a major concern around the world, particularly in developing countries like Mexico, where agriculture is the primary rural activity. As a hypothesis, it was proposed that high concentrations of CO2 in the atmosphere increase crop yields in Mexico, while the increase in temperatures and precipitation variations decrease them. The effect of climate change on agriculture in Mexico was examined using CO2 concentrations in the atmosphere, temperature, and precipitation. The climatic factor that has the greatest influence on agricultural productivity at the national level was identified. The ordinary least squares (MCO) method was used to estimate a Cobb-Douglas econometric model with statistical significance (p ≤ 0.05). CO2 concentration in the atmosphere was the climatic factor that had the greatest influence on agricultural production at the national level, with a direct relationship: if CO2 increased by 1 %, agricultural yield increased by 0.46 %. Corn and sugarcane, two of the three most important crops in terms of productive value in Mexico, are plants with a C4 photosynthetic pathway that benefit from the CO2 fertilization effect and mitigate the negative impact of climate change. However, in the last thirty years, global CO2 emissions have increased by an average of 0.5 % per year. If its growth continues to follow the same pattern in the short term, temperatures will rise, rainfall patterns will change, and agricultural production will be negatively affected.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89497280","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}

引用次数: 0

DETECTION OF Acidovorax citrulli IN WATERMELON SEEDLINGS IN HOPELCHÉN, CAMPECHE, MEXICO 墨西哥坎佩切市HOPELCHÉN地区西瓜幼苗中瓜酸弧菌的检测

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-15 DOI: 10.47163/agrociencia.v57i2.2838

A. M. Hernández-Anguiano, Vicente Rosas-Medina, C. Nava-Díaz, J. G. Torres-Martínez

{"title":"DETECTION OF Acidovorax citrulli IN WATERMELON SEEDLINGS IN HOPELCHÉN, CAMPECHE, MEXICO","authors":"A. M. Hernández-Anguiano, Vicente Rosas-Medina, C. Nava-Díaz, J. G. Torres-Martínez","doi":"10.47163/agrociencia.v57i2.2838","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i2.2838","url":null,"abstract":"In Mexico, there are no reports of the presence of Acidovorax citrulli, the causal agent of bacterial fruit blotch and seedling blight in cucurbits. The introduction of A. citrulli is a latent risk due to the importation of seeds and seedlings. Fruits and plants with typical symptoms of this disease have been observed in watermelon (Citrullus lanatus) production fields of small growers and commercial nurseries in the municipality of Hopelchén, Campeche. The objective was to detect A. citrulli by PCR in watermelon seedlings in a production area in Hopelchén, with the hypothesis that the bacterium is present in this municipality. In December 2018, 51 samples of nine watermelon varieties were collected from two seedling production nurseries. Each sample contained ten symptomatic seedlings ranging in age from 12 to 41 days. End-point PCR analysis with primers WFB1 and WFB2 indicated the presence of A. citrulli in 68.6 % of the samples; immuno-PCR results confirmed the presence of the bacterium in 80.9 % of these samples. Consensus 16S rRNA gene fragment sequences from eight samples aligned with 98 % similarity on average to A. citrulli sequences deposited in the GenBank-NCBI database. The dark, sunken, elongated lesions on cotyledonal leaves, as well as the black, spreading lesions from the margin to the base of true leaves observed on watermelon seedlings, were caused by A. citrulli. This study constitutes a new report of A. citrulli in Campeche, which should be considered to delimit and prevent the spread of the bacterium to other cucurbit-producing areas in Mexico.\u0000 ","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83440865","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}

引用次数: 0

FIELD PHYTOPROTECTION OF Coffea arabica MOTHER PLANTS, DISINFECTION AND CALLOGENESIS INDUCTION 阿拉比卡咖啡母株的田间植物保护、消毒和胼胝质形成诱导

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-15 DOI: 10.47163/agrociencia.v57i2.2707

José Gregorio Joya-Dávila, B. Ruíz-Sesma, C. A. Lecona-Guzman, Nancy Ruíz Lau, Victor Manuel Ruíz Valdiviezo, Reyna Isabel Rojas Martínez, Federico Antonio Gutiérrez Miceli

{"title":"FIELD PHYTOPROTECTION OF Coffea arabica MOTHER PLANTS, DISINFECTION AND CALLOGENESIS INDUCTION","authors":"José Gregorio Joya-Dávila, B. Ruíz-Sesma, C. A. Lecona-Guzman, Nancy Ruíz Lau, Victor Manuel Ruíz Valdiviezo, Reyna Isabel Rojas Martínez, Federico Antonio Gutiérrez Miceli","doi":"10.47163/agrociencia.v57i2.2707","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i2.2707","url":null,"abstract":"In Chiapas, Mexico, there are high-yielding coffee plants adapted to the local climatic conditions. The presence of microorganisms in the explants makes developing protocols for cloning these genotypes in vitro difficult. The objective of this work was to evaluate how field and in vitro microorganism management affected asepsis and the induction of callogenesis in leaf explants of agronomically important coffee plants. Drought-tolerant genotypes were obtained from aseptic explants and cell cultures using a participatory study, agronomic, and in vitro techniques. Five accessions (ITTGj 1-5) were selected from a 21-year-old Borbon cultivar. The present study was conducted over two flowering cycles, evaluating the effect of field management on explant asepsis on the first and the callogenic response caused by the culture medium, the transport solution, and the genotype, on the second. Sixty days before explant collection, biweekly applications of calcium polysulfide (10 % v v-1), copper oxychloride (2 g L-1), and Zingiber officinale extract (20 g L-1) reduced fungal contamination by 100 % and bacterial contamination by 90 %. Field explant transportation in 200 mg L-1 citric acid and ascorbic acid solution reduced oxidation in explants and in vitro cultures. Proembryogenic friable corns were formed with the combination of 4.4 µM BAP (6-benzylaminopurine) and 7.25 µM 2,4-D (2,4-dichlorophenoxyacetic acid) at 45 days of culture, with genotype four showing the best response. Field management was effective for the aseptic establishment of Coffea arabica cultures in vitro, and the combination of BAP and 2,4-D used was an appropriate growth regulator for the induction of callogenesis.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78281325","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}

引用次数: 0

ESTIMATION OF MAIZE GENETIC COEFFICIENTS FOR THE CERES-MAIZE MODEL USING NON-DESTRUCTIVE METHODS 玉米-玉米模型遗传系数的无损估计

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-15 DOI: 10.47163/agrociencia.v57i2.2505

José Luis Noriega Navarrete, R. Salazar Moreno, J. Burgueño-Ferreira, Thanda Dhliwayo, I. López Cruz, C. Petroli

{"title":"ESTIMATION OF MAIZE GENETIC COEFFICIENTS FOR THE CERES-MAIZE MODEL USING NON-DESTRUCTIVE METHODS","authors":"José Luis Noriega Navarrete, R. Salazar Moreno, J. Burgueño-Ferreira, Thanda Dhliwayo, I. López Cruz, C. Petroli","doi":"10.47163/agrociencia.v57i2.2505","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i2.2505","url":null,"abstract":"The Crop Environment Resource Synthesis-Maize (CERES-Maize) mechanistic model, included in the Decision Support System for Agrotechnology Transfer (DSSAT), is a useful and powerful tool that simulates the growth and yield of maize in different environments. The qualitative and quantitative information provided to the CERES-Maize model guarantees reliability in the simulations obtained. However, it requires a lot of information such as soil characteristics, daily climate, crop characteristics and management, as well as six genetic coefficients. This research assessed a non-destructive methodology for estimating the six required parameters (genetic coefficients): P1, P2, P5, G2, G3 and PHINT, based on the maize physiology, measured from the Growing Degree Days (GDD) base 10. An experiment was established at the experimental station of the International Maize and Wheat Improvement Center (CIMMYT) in Tlaltizapan, Morelos, Mexico, where 27 white maize hybrids and 14 yellow maize hybrids were manually sown in an irrigation conservation tillage system. Once the simulations of maize growth and yield were obtained with CERES-Maize model, the genetic coefficients were calibrated using the Generalized Likelihood Uncertainty Estimation (GLUE). After calibration of the six genetic coefficients for all hybrids, an average values of P1, G2 and G3 were within the typical range, while P2 and P5 were greater than the typical range, and PHINT was below typical range. However, the simulation model showed good performance after calibration, according to the average R2 of 0.9809 and 0.9730 between measured and simulated yields for white and yellow hybrids respectively. The coefficients estimated in this study can be used in the CERES-Maize model to simulate maize yields in different regions of the country for the hybrids used here.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73073356","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}

引用次数: 0

MACGRAN-IJ: AN EFFICIENT METHOD TO ANALYZE DIMENSIONS AND COLOR OF WHEAT GRAINS macgran_ij:一种分析小麦籽粒尺寸和颜色的有效方法

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-15 DOI: 10.47163/agrociencia.v57i2.2718

C. P. Sauceda-Acosta, V. A. González-Hernández, H. Villaseñor-Mir, G. Lugo-García, L. Partida-Ruvalcaba

{"title":"MACGRAN-IJ: AN EFFICIENT METHOD TO ANALYZE DIMENSIONS AND COLOR OF WHEAT GRAINS","authors":"C. P. Sauceda-Acosta, V. A. González-Hernández, H. Villaseñor-Mir, G. Lugo-García, L. Partida-Ruvalcaba","doi":"10.47163/agrociencia.v57i2.2718","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i2.2718","url":null,"abstract":"The dimensions, shape, and color of wheat grain are important in plant breeding, although their manual measurement is difficult and time-consuming. While it is true that digital image analysis (DIA) with specific software has made it easier, some are semiautomatic, exclude color, and require the digitization of individual grains. The goal of this study was to compare the precision, accuracy, and efficiency of MacGran-IJ versus SmartGrain, GrainScan, and manual caliper measurement. The morphological characteristics of durum wheat (Triticum durum Desf.) and bread wheat (Triticum aestivum L.) grains were measured using DIA with MacGran-IJ, including color (in RGB and CIELab color spaces), size (mm2), lateral length (LLG, mm), ventral length (VLG, mm), lateral (LWG, mm) and ventral (VWG, mm) width, perimeter (mm), and circularity. Length, LWG, and VWG were measured with a digital caliper. The time (s) taken in each method was recorded. Size, LLG, VLG, and VWG were the same between methods for both species, but the LWG measurement obtained with vernier showed differences between the three programs (p ≤ 0.01), as well as low accuracy and precision. VWG obtained manually had R2 values of 0.92, 0.91, and 0.89 (p ≤ 0.01) for MacGran-IJ, SmartGrain, and GrainScan, respectively. The ventral and lateral color red of wheat grain differed between MacGran-IJ and GrainScan; the lateral part of the bread wheat grain showed differences for red, green, and blue (p ≤ 0.05). DIA in CIELab color required 11.57 s, and in RGB it needed 7.25 s (p ≤ 0.01). Manual measurement of 50 wheat grains required 1528.07 s, whereas SmartGrain took 101.84 s, MacGran-IJ 45.4 s, and GrainScan 54.11 s (H = 36.59, p ≤ 0.01). MacGran-IJ is an automated, simple, and efficient method for accurately measuring the size, length, and width of wheat grains using digitized images","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86688630","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}

引用次数: 1

DETERMINANTS OF AGRICULTURAL INNOVATION AMONG SMALL FARMERS IN MEXICO. AN ECONOMETRIC APPLICATION OF THE TOBIT MODEL 墨西哥小农农业创新的决定因素。tobit模型的计量经济学应用

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-03-15 DOI: 10.47163/agrociencia.v57i2.2878

Víctor Manuel Santos-Chávez, O. A. Arana-Coronado, M. A. Martínez-Damián, L. E. Garza-Bueno, J. S. Mora-Flores, V. H. Santoyo-Cortés

{"title":"DETERMINANTS OF AGRICULTURAL INNOVATION AMONG SMALL FARMERS IN MEXICO. AN ECONOMETRIC APPLICATION OF THE TOBIT MODEL","authors":"Víctor Manuel Santos-Chávez, O. A. Arana-Coronado, M. A. Martínez-Damián, L. E. Garza-Bueno, J. S. Mora-Flores, V. H. Santoyo-Cortés","doi":"10.47163/agrociencia.v57i2.2878","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i2.2878","url":null,"abstract":"Understanding agricultural innovation is crucial as it involves establishing conditions for productivity growth in the agrifood sector through strategies and public policies that improve farmers’ production, profitability, and management practices. The objective of this article was to measure agricultural innovation among small farmers and to identify the factors that determine it. A Tobit-type econometric model was used to identify the characteristics of the producers, the economic and productive profile of the farms, and the size of the extension groups, all of which influence innovation. Information on rural extension policy beneficiaries in Mexico for the period 2014-2017 was integrated. The statistical population was 2976 farmers. The findings reveal that higher education levels and a younger age of producers had a positive effect; producers with small farms were more likely to adopt technological practices. On the other hand, factors negatively affecting innovation were higher on-farm and off-farm incomes. The article concludes with public policy recommendations to promote agricultural innovation in Mexico.\u0000 ","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86988613","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}

引用次数: 0

PROBABILITY OF MORTALITY IN CASUARINA TWO YEARS AFTER THE FIRE AT THE PIEDMONT OF THE TLALOC VOLCANO, STATE OF MEXICO, 2017 2017年，墨西哥法拉克火山山前大火两年后木麻黄的死亡率

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-02-27 DOI: 10.47163/agrociencia.v57i1.2814

María Magdalena Hernández-Rosas, Ana Laura Hernández-Leyva, D. Rodríguez-Trejo

{"title":"PROBABILITY OF MORTALITY IN CASUARINA TWO YEARS AFTER THE FIRE AT THE PIEDMONT OF THE TLALOC VOLCANO, STATE OF MEXICO, 2017","authors":"María Magdalena Hernández-Rosas, Ana Laura Hernández-Leyva, D. Rodríguez-Trejo","doi":"10.47163/agrociencia.v57i1.2814","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i1.2814","url":null,"abstract":"In 2017, at the foot of the Tlaloc volcano, occurred the largest forest fire in the State of Mexico (2500 ha), with surface and crown (canopy) phases, on plantations of various species and various types of vegetation. Studies on the effects of fires on trees serve to define mortality and whether or not restoration will be required in an affected area. The hypothesis was: the greater the intensity and severity of the fire and the smaller the size of the trees, the greater the probability of mortality. The objective of the study was to establish the fire severity and dasometric variables that influence the probability of both mortality and resprouting in Casuarina equisetifolia L. plantations affected by fire. The study was conducted at the Experimental Forestry Station “Las Cruces” (Universidad Autónoma Chapingo, State of Mexico). In 2019, 442 trees (15 sites of 100 m2) were sampled in 50 ha of plantations affected by the fire. Records were made on whether the trees were alive or dead, normal diameter, bark thickness, height, height at the base of the original crown, height of the fire scar on the trunk, height of crown scorch and presence of resprouting. The statistical analysis consisted of logistic regressions, using the Proc Logistic procedure of the SAS program. The average tree mortality was 63 %. The variable that was directly related (p ≤ 0.05) to the probability of mortality was the height of the scar above the trunk. The dasometric variables inversely related (p ≤ 0.05) with the probability of mortality were: height, normal diameter and bark thickness. For resprouting probability, there was an inverse relationship (p ≤ 0.05) with normal diameter, bark thickness and height of scar on the trunk. It is concluded that casuarina is a fire sensitive species.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74761606","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}

引用次数: 0

PREBIOTIC, Bacillus subtilis AND POTASSIUM PHOSPHITE ON ANTHRACNOSIS SEVERITY AND POST HARVEST QUALITY IN ‘MÉNDEZ’ AVOCADO 益生元、枯草芽孢杆菌和亚磷酸钾对MÉNDEZ鳄梨炭疽病严重程度和采后品质的影响

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-02-27 DOI: 10.47163/agrociencia.v57i1.2342

Elizeth Vizcaíno-Ríos, Alfredo López-Jiménez, D. Teliz-Ortiz, C. Saucedo-Veloz

{"title":"PREBIOTIC, Bacillus subtilis AND POTASSIUM PHOSPHITE ON ANTHRACNOSIS SEVERITY AND POST HARVEST QUALITY IN ‘MÉNDEZ’ AVOCADO","authors":"Elizeth Vizcaíno-Ríos, Alfredo López-Jiménez, D. Teliz-Ortiz, C. Saucedo-Veloz","doi":"10.47163/agrociencia.v57i1.2342","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i1.2342","url":null,"abstract":"Several factors affect the quality and safety of avocado (Persea americana Mill.) fruit during the production process, such as the agronomic management and climate. The objective of this research was to evaluate how foliar treatments affected postharvest control of anthracnose (Colletotrichum spp.) in two ‘Méndez’ avocado growing areas, Ziracuaretiro (ZI) and Salvador Escalante (SE), Michoacán, Mexico. Foliar sprays were used in the following treatments: 1) conventional management (CM) based on the technician’s experience; 2) integrated management (IM) including Bacillus subtilis, a prebiotic (BioKakimu®), and potassium phosphite; and 3) absolute control without foliar sprays. The effects of the treatments were evaluated on fruit harvested at physiological maturity while taking into account the severity of post-harvest anthracnose and fruit quality up to consumption maturity. During the evaluation period, disease damage was less than 10 % of the fruit surface in all three treatments. However, IM treatment delayed maturation time by 12.4 days in ZI and 10.6 days in SE. Fruits of the IM treatment lost less weight in ZI (7.6 %) than in SE (8.48 %) at eating maturity. Fruit firmness in ZI was higher in the IM and control treatments, while there were no differences in SE. The fruits in ZI and SE showed a decreasing color index profile for the three treatments. It is concluded that the phytopathogenic fungus in ‘Méndez’ was not exposed to weather conditions favorable for its development for an extended period of time, given that the first anthracnose alerts were emitted when the fruits were harvested. The crop management method did not result in an increase in the nutrient concentration of the fruit mesocarp.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88126668","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}

引用次数: 0

EFFECT OF PROMOTING COMPOUNDS OF INDIRECT SOMATIC EMBRYOGENESIS IN THREE Agave SPECIES 促进三种龙舌兰间接体细胞胚胎发生的化合物的作用

IF 0.3 4区农林科学

Agrociencia Pub Date : 2023-02-22 DOI: 10.47163/agrociencia.v57i1.2858

Monserrat Hernández-Solís, A. Arzate-Fernández, S. Martínez-Martínez, Laura Acosta-Villagrán

{"title":"EFFECT OF PROMOTING COMPOUNDS OF INDIRECT SOMATIC EMBRYOGENESIS IN THREE Agave SPECIES","authors":"Monserrat Hernández-Solís, A. Arzate-Fernández, S. Martínez-Martínez, Laura Acosta-Villagrán","doi":"10.47163/agrociencia.v57i1.2858","DOIUrl":"https://doi.org/10.47163/agrociencia.v57i1.2858","url":null,"abstract":"The Agave genus is one of the largest and most widely used in Mexico, mainly for the production of alcoholic beverages. The species in this genus are characterized by their long-life cycles and limited sexual reproduction, which endangers them and demands the search for an alternative that allows mass multiplication and preservation of these species. Somatic embryogenesis (ES) is emerging as a solution to solve this problem, although it is a complex process that depends on a large number of factors and the development of species-specific protocols. Osmotic stress is one of these factors, a condition that can promote the formation and maturation of somatic embryos through the application of compounds such as polyethylene glycol (PEG) or abscisic acid (ABA). So far, no studies have been reported on the effect of osmotic stress on somatic embryogenesis in Agave species. In this work we evaluated its effect on the expression and maturation of somatic embryos in Agave angustifolia, A. cupreata and A. salmiana. Its formation was determined using two concentrations of ABA (3 and 9 mg L-1) and two concentrations of PEG (50 and 70 g L-1) in callus obtained from embryonic zygotic axes. Treatments with 9 mg L-1 ABA and 50 g L-1 PEG favored the formation of somatic embryos in the three species evaluated, in addition to the treatment with 70 g L-1 PEG, with which A. angustifolia was obtained. Somatic embryo formation was asynchronous, especially for A. cupreata. Seedling regeneration from somatic embryos was achieved in A. angustifolia, A. cupreata and A. salmiana.","PeriodicalId":50836,"journal":{"name":"Agrociencia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72837941","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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