Alejandro F. Barrientos-Priego

• Doctor en Ciencias
• Professor at Chapingo Autonomous University

The root system of clonal rootstocks has been poorly studied, despite its crucial importance. Roots not only provide support and nutrition to the plant but also contribute to tolerance to pests, diseases and environmental stresses, in addition to optimizing yields. Although the initial cost of clonal rootstocks is higher, the investment is offset b...

Background. Drought is the main factor that reduces crop yield, and grafting is used to confer resistance traits. Objective. The effect of water deficit on water relations, gas exchange, and proline content was determined in two avocado cultivars, 'Colín V-33' and 'Hass', grafted onto three clonal rootstocks ('Colin V-33' (C), 'Fuerte' (F), and 'Ha...

Laurel wilt (LW), a lethal vascular disease caused by the ambrosia fungus Harringtonia lauricola, has severely reduced avocado (Persea americana Mill.) production in Florida and decimated populations of native lauraceous trees across twelve U.S. states. All commercial avocado cultivars evaluated to date succumb to the disease, but the speed at whic...

La propagación vegetativa con estacas de tallo requiere originar brotes y raíces para formar una planta completa. Se han investigado factores que intervienen en la generación de raíces, pero poco se ha trabajado con el pH. La investigación se realizó en el Colegio de Postgraduados, Campus Montecillo, Texcoco, México en 2021. En estacas de Ficus car...

As young workers prefer urban labors and migrate to USA and Canada, mango harvesting is becoming scarce on Mexican coasts. This seasonal labor is becoming expensive and when many orchards produce fruit simultaneously, grower losses increase. In this research, an innovative fruit detachment method was tested after applying a viscous paste to the ped...

Berries such as blackberries, raspberries, blueberries and strawberries are rich in phenolic compounds, secondary metabolites biosynthesized as a result of the evolution of terrestrial plants to cope with environmental challenges. In particular, wild species often have characteristics that allow them to adapt to adverse environments. The objective...

Avocado scab causes great economic losses in Mexico and the world. This study aimed to provide an automatic method of quantifying this symptom. The proposed method uses polygonal regions from the a-b plane of the CIE L*a*b* color format to identify a color (even with variations) and different avocado fruit shades. The polygons were used to determin...

Entre los coleópteros de importancia agrícola sobresale la familia Curculionidae, y entre éstos, el picudo Macrocopturus aguacatae Kissinger, está reconocido como una plaga que barrena las ramas del aguacate (Persea americana Mill.) El objetivo del presente estudio fue evaluar la preferencia de alimentación de Macrocopturus aguacatae en condiciones...

A detailed morphological and molecular study of the four Opuntia species belonging to the ser. Streptacanthae is carried out. No published phylogenetic study of Opuntia includes these four species. Our data support the recognition of the four taxa as separated species but related by the characteristic of having a glabrous epidermis, yellow flowers,...

El uso de portainjertos de aguacate es muy común, pero éstos han sido poco estudiados desde el punto de vista anatómico y fisiológico de la hoja, variables que pueden ser útiles para entender su papel al ser injertados, como las relacionadas con los estomas y el intercambio de gases. El objetivo de esta investigación fue estudiar las característica...

Vaccinium is one of the largest in the Ericaceae family, distributed worldwide. Mortiño (Vaccinium floribundum Kunth) is an Andean fruit threatened by agriculture, livestock, and forestry activities, causing genetic erosion. The importance of the mortiño fruit is also because of its nutritional composition due to its high content of functional comp...

p> Background: recently there has been concern for the monitoring of ambrosial complexes in Mexico that consist of a symbiotic relationship between a beetle and fungi, where the female invades a wide variety of species making galleries in the bark and wood, in which beetles reproduce and grow the fungi to feed the colony, these fungi can be a phyto...

Background: recently there has been concern for the monitoring of ambrosial complexes in Mexico that consist of a symbiotic relationship between a beetle and fungi, where the female invades a wide variety of species making galleries in the bark and wood, in which beetles reproduce and grow the fungi to feed the colony, these fungi can be a phytopat...

Most beetle–fungus symbioses do not represent a threat to agricultural and natural ecosystems; however, a few beetles are able to inoculate healthy hosts with disease-causing fungal symbionts. Here, we report the putative nutritional symbionts associated with five native species of ambrosia beetles colonizing commercial avocado trees in four locati...

Complementary ex situ and in situ conservation, including the on-farm alternative, is a highly desired and dynamic strategy that allows the natural evolution of the conserved germplasm. Due to the high costs involved, in addition to the limitations of both economic and human resources, in situ conservation must focus on areas where the greatest ben...

The anatomical and physiological structure of the ‘Colín V­33’ avoca­ do stem and leaf is described from samples from plants obtained from seed in order to identify genotypes and early selection parameters in a rootstock improvement program for avocado. Eighty­nine plants of 12 months of age were used, where a total of 25 anatomical variables of th...

En este estudio fueron evaluadas algunas variedades de cítricos utilizadas como interinjertos en las características del crecimiento inicial de brote primario de la lima persa var. ‘Tahiti’ (Citrus x latifolia Tanaka ex Q. Jiménez) y su relación con características del tallo. Se utilizaron como interinjertos trifoliado ‘Flying Dragon’ (Poncirus tri...

En este estudio fueron evaluadas algunas variedades de cítricos utilizadas como interinjertos en las características del crecimiento inicial de brote primario de la lima persa var. ‘Tahiti’ (Citrus x latifolia Tanaka ex Q. Jiménez) y su relación con características del tallo. Se utilizaron como interinjertos trifoliado ‘Flying Dragon’ (Poncirus tri...

The anatomical and physiological structure of the ‘Colín V-33’ avocado stem and leaf is described from samples from plants obtained from seed in order to identify genotypes and early selection parameters in a rootstock improvement program for avocado. Eighty-nine plants of 12 months of age were used, where a total of 25 anatomical variables of the...

La diversidad y condiciones climáticas de México, permiten el desarrollo y producción de frutos de zarzamora para su consumo en fresco durante casi todo el año y con calidad de exportación. Se utilizaron plantas de zarzamora cultivar Tupy con la finalidad de evaluar dos densidades de plantación 0.50 m (10,000 plantas/ha) y 0.80 m (6,250 plantas/ha)...

La combinación de citocininas y auxinas es un requisito esencial para estimular el crecimiento de brotes in vitro; el nivel endógeno de reservas y de reguladores del crecimiento en el sistema de la mini estaca están relacionados en gran medida con la demanda de reguladores del crecimiento exógenos, que desempeña un papel principal en la organogénes...

La unidad productiva en los huertos comerciales de aguacate la constituye el portainjerto y la variedad, los cuales tienen una gran cantidad de relaciones fisiológicas, en varios casos de fuente-demanda, que influye en su crecimiento y finalmente en la productividad de la unidad, que además es fuertemente afectado por el ambiente. El portainjerto,...

A seed system is the combination of components, processes and their organization for the production and marketing of this input for planting one or more species. Due to the importance of the implementation of the Law on Production, Certification and Trade of Seeds and the Federal Plant Varieties Law (FPVL), in this study the evolution of the produc...

Recent research has focused on the diversity of ambrosia beetles (Scolytinae and Platypodinae) in Mexico. Actually, 867 species of Scolytinae and 40 of Platypodinae have been identified in Mexico. However, only 5% represent forests pests of high importance for Mexico. These insects have been reported in 265 host species, but only 199 hosts of high...

The avocado, Persea americana , is a fruit crop of immense importance to Mexican agriculture with an increasing demand worldwide. Avocado lies in the anciently diverged magnoliid clade of angiosperms, which has a controversial phylogenetic position relative to eudicots and monocots. We sequenced the nuclear genomes of the Mexican avocado race, P. a...

RESUMEN: La falta de agua se ha vuelto un problema mundial para la producción de los cultivos. El conocer las relaciones de los factores intrínsecos de cómo los portainjertos pueden soportar la escasez de agua es de gran importancia para su posible selección hacia la tolerancia a sequía. Se caracterizaron aspectos anatómicos y fisiológicos de siete...

Mexican landrace avocados are naturally distributed mainly in high areas of central Mexico, where they have been produced and consumed since pre-Hispanic times. However, trees of these species are being replaced by improved varieties with greater global demand, and many species have been lost due to the destruction of their natural habitats. Many p...

The avocado, Persea americana , is a fruit crop of immense importance to Mexican agriculture with an increasing demand worldwide. Avocado lies in the anciently-diverged magnoliid clade of angiosperms, which has a controversial phylogenetic position relative to eudicots and monocots. We sequenced the nuclear genomes of the Mexican avocado race, P. a...

Because of the low availability of avocado rootstocks with resistance to Phytophthora cinnamomi, it is necessary to search for genotypes that offer resistance and that could be used as commercial rootstocks. The objective of this study was to select progeny from the genotypes of Mexican race avocado plants that are resistant to P. cinnamomi. Seedli...

Because of the low availability of avocado rootstocks with resistance to Phytophthora cinnamomi, it is necessary to search for genotypes that offer resistance and that could be used as commercial rootstocks. The objective of this study was to select progeny from the genotypes of Mexican race avocado plants that are resistant to P. cinnamomi. Seedli...

Crataegus is distributed worldwide and presents a phenotypic diversity in size, shape, color and aroma of the fruit. The objective of this study was to identify genotypes of Crataegus with a similar profile of volatile compounds by means of a metabolomic study. In addition, the content of pigment was evaluated to contribute to the agronomic, medici...

Phytophthora root rot caused by Phytophthora cinnamomi Rands., is distributed worldwide and causing great economic losses to the avocado producers. The search for avocado rootstocks that present resistance against this rot has been done by screening in germplasm banks and wild materials of this species. Resistance of avocado to P. cinnamomi has bee...

Phytophthora root rot caused by Phytophthora cinnamomi Rands., is distributed worldwide and causing great economic losses to the avocado producers. The search for avocado rootstocks that present resistance against this rot has been done by screening in germplasm banks and wild materials of this species. Resistance of avocado to P. cinnamomi has bee...

In order to evaluate the effect of the application of native strains of indole acetic acid (AIA) producing bacteria on the formation of radical primordia of avocado etiolate shoots, seven bacterial strains were isolated from soil of avocado rhizosphere. Soil samples were collected in San Juan Elotepec, Villa Sola de Vega, Oaxaca in Mexico. Pure cul...

Con la finalidad de evaluar el efecto de la aplicación de cepas nativas de bacterias productoras de ácido indolacético (AIA) en la formación de primordios radicales de brotes etiolados de aguacate, se aislaron cepas de suelo de rizosfera de aguacate colectado en San Juan Elotepec, Villa Sola de Vega, Oaxaca, México. Se seleccionaron tres cepas con...

Introduction: Rootstock diversification arises as a consequence of the appearance of diseases and the need to improve the yields and productive efficiency of orchards. Objective: To establish the relationship between the anatomical characteristics of the stem of four citrus rootstocks and the initial growth of 'Tahiti' lime (Citrus x latifolia Tan...

We present the molecular analysis of 41 accessions of the genus Persea (avocado) and a related genus: Persea cinerascens (1), Persea schiedeana (1), Persea floccosa (1), Persea parvifolia (1), Persea lingue (1), Persea meyeniana (1), Persea americana (25), Beilschmiedia anay (1), Persea hybrids (8), and an unidentified Persea sp. (1). Statistical a...

Con la finalidad de establecer bases para diferenciar parte de la diversidad genética de Persea y en especial del subgénero Persea resguardado en la colección nacional de germoplasma de aguacate de México, se estudiaron ocho especies (P. americana, P. steyermarkii, P. schiedeana, P. lingue, P. nubigena, P. floccosa, P. cinerascens y P. indica) con...

The avocado belongs to the genus Persea, which is one of the most controversial genera of the Lauraceae family, since the relationships within the subgenus Persea are not clear and only recognized two species, Persea americana and Persea schiedeana. Its relationship with the subgenus Eriodaphne is also complex and there is a debate as to whether i...

RESUMEN Los ápices de raíz son elementos indispensables para la planta por la relación que mantienen con las condiciones edáficas, tanto bióticas como abióticas. Por ello, sus características morfológicas y anatómicas fueron objeto de estudio en genotipos clonales de aguacate para agruparlos y determinar si existen características que se correspond...

RESUMEN El uso de técnicas de marcadores moleculares se inicia con un buen extracto de ADN; esto es, un ADN con buen rendimiento y pureza. Con la finalidad de obtener ADN puro e íntegro, en el presente estudio se evaluaron seis métodos de extracción de ADN: Dumolin, Doyle, Tsumura, Núñez, CTAB modificado y Kit Wizard Genomic DNA en brotes frescos y...

The root apex is essential in the relationships that it has with the soil conditions. Therefore, a root morphological and anatomical study was carried out in avocado clonal genotypes for groping, and to determinate characteristics that could correspond to adaptation to biotic or abiotic adverse soil factors. Clonal 90 day-old plants were used, in a...

El uso de técnicas de marcadores moleculares se inicia con un buen extracto de ADN; esto es, un ADN con buen rendimiento y pureza. Con la finalidad de obtener ADN puro e íntegro, en el presente estudio se evaluaron seis métodos de extracción de ADN: Dumolin, Doyle, Tsumura, Núñez, CTAB modificado y Kit Wizard Genomic DNA en brotes frescos y liofili...

En los huertos comerciales de aguacate la unidad productiva la forma el árbol, que lo constituye un portainjerto que aporta la raíz y parte del tronco; y el injerto que se compone por tronco y lo que llamamos copa. La elección de la variedad o cultivar a injertar es de gran importancia pues asegura una buena adaptación y producción. Existen más de...

The genus Persea has two subgenera, Persea and Eriodaphne. There is controversy about the taxonomy between species of the subgenus Persea, and its relationships with the subgenus Eriodaphne. Because of its complex evolutionary patterns, the subgenus Persea has considerable variability with uncertain taxonomic affinities. In this study, we analyzed...

The objective of this research was to determine the content of some bioactive compounds and the antioxidant potential of xocotuna (Opuntia chiangiana) compared to that of cactus pear (Opuntia ficus-indica) and xoconostle (Opuntia spp.). Fruits at physiological maturity were harvested in the months of June, August and October of 2013 in El Orito, Za...

El objetivo de la presente investigación fue determinar algunas características físicas y químicas de xocotuna en comparación con tuna y xoconostle. Se utilizaron frutos de xocotuna, tuna y xoconostle frescos en madurez fisiológica. Se evaluó el porcentaje de pérdida de peso, color (ángulo hue), grosor de cáscara, sólidos solubles totales y acidez...

Due to the wide range of Opuntia in the country and that Mexico is considered one of the places of origin and dispersion, the studies in respect to this genus are important to know their possible agronomic management, from which was raised as objective of this investigation to compare the firmness, transpiration rate, ethylene production, acetaldeh...

The objective of this research was to determine the content of some bioactive compounds and the antioxidant potential of xocotuna (Opuntia chiangiana) compared to that of cactus pear (Opuntia ficus-indica) and xoconostle (Opuntia spp.). Fruits at physiological maturity were harvested in the months of June, August and October of 2013 in El Orito, Za...

The genus Persea has two subgenera, Persea and Eriodaphne. There is controversy about the taxonomy between species of the subgenus Persea, and its relationships with the subgenus Eriodaphne. Because of its complex evolutionary patterns, the subgenus Persea has considerable variability with uncertain taxonomic affinities. In this study, we analyzed...

Exporting avocado involves a number of postharvest problems because the fruit has a limited shelf life and marked sensitivity to development of chilling injury when using low temperatures to prolong its useful life. There are measures to alleviate the problem, such as infiltration of calcium ions; therefore, the aim of this study was to evaluate th...

In vitro propagation of guava (Psidium guajava L.) shoots by direct organogenesis is an alternative to quickly obtain productive plants. This work optimized a protocol for in vitro regeneration from apexes and nodal segments of five different guava genotypes with high commercial potential Paluma 12 (PM12), Paluma 6 (PM6), 17-06, Roja Exterior Redon...

Cactus pear (Opuntia sp.) is a highly perishable fruit that starts to deteriorate after several days of storage at room temperature. After two weeks at room temperature, 70% of the fruit shows signs of deterioration. Cactus pear quality for stored pears depends on harvest techniques and on practices for prolonging shelf life. A pneumatic cauterizin...

ALMOND / APPLE / APRICOT / APRICOT ROOTSTOCK / BANANA/PLANTAIN (Musa spp.) / BLACKBERRY / BLUEBERRY / CACAO / CACTUS PEAR (OPUNTIA FICUS-INDICA) / CACTUS PEAR—XOCONOSTLE / CHERRY ROOTSTOCK / CHERRY—SWEET / CITRUS / ELDERBERRY / NECTARINE / PEACH / PINEAPPLE / PITAHAYA (DRAGON FRUIT) / PLUM / PLUM ROOTSTOCK / POMEGRANATE / POMEGRANATE ROOTSTOCK / RA...

Currently, the reclassification of the genus Persea is under discussion with molecular techniques for DNA analysis representing an alternative for inter- and intra-specific differentiation. In the present study, the traditional random-amplified polymorphic DNA (RAPD) and the inter simple sequence repeat (ISSR) markers were used to determine the gen...

RESUMEN La propagación in vitro mediante organogénesis directa de brotes de guayabo (Psidium guajava L.) constituye una alternativa para la rápida obtención de plantas productivas. El presente trabajo tuvo como objetivo optimizar un protocolo de regeneración in vitro a partir de ápices y segmentos nodales de cinco genotipos de guayabo con alto pote...

The transpiration rate (E) of ‘Colinmex’ avocado was evaluated over a year to determine its seasonal variation under two soil moisture (SM) regimes and its relationship to phenological phases. The following cultivar/interstock/rootstock (regional criollo originated from seed) and soil moisture regime combinations were evaluated: T1) ‘Colinmex’/’Col...

Durante un año se evaluó la tasa de transpiración (E) en aguacate ‘Colinmex’ con el objetivo de determinar la variación estacional de la E bajo dos regímenes de humedad y relacionarla con sus etapas fenológicas. Se utilizaron las siguientes combinaciones cultivar/injerto intermedio/portainjerto (criollo regional originado de semilla) y régimen de h...

This book is comprised of 15 chapters covering principles and basic understanding in avocado science, technology, best management practices and postharvest aspects. It is aimed at avocado researchers, libraries, teachers and academics, students, advisers, cutting edge growers and industry support personnel. Topics discussed include the history, dis...

The irrigation with saline waters is one of the principal forms of salinization of soils; upon increasing the concentration of salts in the soil, the soil absorption also increases, which reduces the vegetative growth and produces necrosis in sensitive plants like the avocado. The objective of this research was to study the response of growth and t...

The irrigation with saline waters is one of the principal forms of salinization of soils; upon increasing the concentration of salts in the soil, the soil absorption also increases, which reduces the vegetative growth and produces necrosis in sensitive plants like the avocado. The objective of this research was to study the response of growth and t...

Currently in the world, there are breeding programs in avocado, aiming to obtain new cultivars and rootstocks to increase productivity and stress-related problems on the soil. In the case of 'Lamb Hass'; characteristics in leaves have been found such as increased CO2 assimilation rate and persea mite resistance. These features can be directly relat...

Currently in the world, there are breeding programs in avocado, aiming to obtain new cultivars and rootstocks to increase productivity and stress-related problems on the soil. In the case of 'Lamb Hass'; characteristics in leaves have been found such as increased CO2 assimilation rate and persea mite resistance. These features can be directly relat...

Variation of the nuclear ribosomal region in Crataegus L. from central and southern Mexico. This study was conducted at the Universidad Autónoma de Chapingo and concluded in October 2008, to determine the genetic relationships among species of Crataegus from central and southern Mexico. The variation in the sequences of the nuclear ribosomal region...

Twenty nine cactus pear varieties and four xoconostle varieties were evaluated using 24 quantitative traits. Measurements of cladodes, flowers and fruits were performed according to the International Union for the Protection of New Varieties of Plants (UPOV) guidelines for tests of distinctness, uniformity and stability of cactus pear and xoconostl...

The aim of this study was to evaluate the enzymatic behavior related to the ripening of fruits of pitahaya using of two types of plastic films, low density (PBD) and multilayered film PD-960 of Cryovac, under two storage temperatures, room temperature (20 ±1 °C) during 15 days and storage at 5 °C during 8, 16, 24 and 32 days. The enzymes evaluated...

The objective of this work was to determine the suitable sample size, to detect statistical differences in the analysis of variance of xylem characters, in annual shoots of avocado trees. For this, xylem characters of three trees with contrasting height were registered for frequency, area, perimeter and diameter of xylem vessels. Starting from 50 o...

The influence of interstock in anatomical and physiological leaf characteristics were evaluated in 'Hass', 'Fuerte', 'Colín V–33' and 'Duke 7' used as interstocks and final grafts. Stomatal density, epidermal cell density, stomatic index and stomata polar diameter were assessed in leaf blade. In cross sections of the central vein and petiole of the...

The influence of interstock in anatomical and physiological leaf characteristics were evaluated in 'Hass', 'Fuerte', 'Colín V-33' and 'Duke 7' used as interstocks and final grafts. Stomatal density, epidermal cell density, stomatic index and stomata polar diameter were assessed in leaf blade. In cross sections of the central vein and petiole of the...

The tomato (Solanum lycopersicum L.) is one of the most widely consumed vegetables. However, phytopathogical problems have underlined the need to look for alternatives for its cultivation, such as grafting, using rootstock resistant to environmental factors and diseases. For this technique, compatibility between the graft and the rootstock must be...

The tomato (Solanum lycopersicum L.) is one of the most widely consumed vegetables. However, phytopathogical problems have underlined the need to look for alternatives for its cultivation, such as grafting, using rootstock resistant to environmental factors and diseases. For this technique, compatibility between the graft and the rootstock must be...

Manual gráfico para la descripción varietal de aguacate Manual gráfico para la descripción varietal de aguacate aguacate avocado

Tejocote (Crataegus spp.) is a genus of fruit-bearing trees distributed widely throughout Mexico; 13 species are reported for the north and central zones and two or more species may be present in southern Mexico. Accessions of this genus are safeguarded in the Germplasm Bank of Tejocote at the Autonomous University of Chapingo, mainly from three re...

The avocado is one of the most important cultivations in Mexico for the entrance of foreign currencies that generates due to the export of the fruit; although this activity is affected particularly by problems like the presence of physiologic disorders when it is stored to low temperatures, and the deficiency of calcium has been related with the ap...

The Crataegus L. genus in Mexico is constituted by 13 species for the centre and north, and probably two for the south, which 9 to 10 species are endemic. The possible distribution of this genus in Mexico is unknown, but species of this genus have been reported in 20 of the 32 Mexico states; however, species of this genus can be found in other enti...

Considering plant characterization as the set of characteristics for taxonomical differentiation, in the present research the selection of reliable and discriminating morphological variables was established as objective, using the analysis of variance, coefficient of variation, lineal correlation, stepwise selection analysis and mean component anal...

Introduction. Tejocote (Crataegus spp.) is an edible fruit species that some Mesoamerican cultures have cultivated since pre-Hispanic times in Mexico; however, this fruit crop has not undergone formal breeding. It is unknown whether morphological markers associated with fruit size exist to be used for indirect selection; this could be important, be...

The genus Crataegus L. in Mexico is constituted by 13 species for the centre and north, and probably two for the south, out of these 9 to 10 species are endemic. The possible distribution of this genus in Mexico is unknown, but species of this genus have been reported in 20 of the 32 states of Mexico; however, species of this genus can be found in...

Considering that the characterization in plants like a set of characteristics to differentiation they taxonomicment, in the present research was established as objective the selection of reliable and discriminant morphological variables, by means of the analysis of variance, coefficient of variation, lineal correlation, stepwise selection analysis...

Mexican montane rainforests and adjacent disturbed areas were studied for disturbance-related spatio-temporal changes to the arbuscular mycorrhizal fungal (AMF) community and soil glomalin concentration. The AMF community functions to both improve plant growth and soil conditions and is thus an important component to the restoration of this forest...

Today, in a world globalized by economic and commercial relations. genetic resources constitute an element that generates power in agricultural markets and represents an important instrument in international political relations. For Mexico. These considerations acquire greater relevance due to the origin of a large number of agricultural species, c...

La Sierra Purépecha en Michoacán, México, es considerada la región productora de aguacate más importante del mundo, donde existen factores restrictivos de la producción que no han sido apropiadamente identificados y que requieren ser investigados para proponer mejores alternativas de manejo del cultivo que conduzcan a altos rendimientos y óptima ca...

Con la finalidad de estudiar el efecto del Ca(NO3)2, se realizaron aspersiones foliares precosecha en árboles de aguacate cv. Hass con concentraciones de 0, 0.3 y 0.5 %, cada quince días a partir de la segunda quincena de septiembre del 2003 hasta principios de enero del 2004, con un total de 11 aplicaciones. Se evaluó la concentración nutrimental...

In Mexico, there is a tradition in the cultivation and use of young cactus cladodes as a vegetable named "nopalitos". However, the presentation form for its commercialization (minimally processed) is one of the main problems that this product has. Enzymatic browning caused by the enzyme polyphenoloxidase (PPO) becomes one of the problems during pro...

To use precise methods for characterization and to differentiate plants in the germplasm banks saves time in the selection of elite genotypes. In occasions this work is not easy, because depending on the species, the morphological descriptors can be insufficient to separate related accessions or species, like in the case of some commercial varietie...