International Market of Fresh and Processed Guava: Challenges and Perspectives for the Mexican Case

Padilla-Ramírez, José Saúl; González-Gaona, Ernesto; Ambriz-Aguilar, J.

doi:10.17660/actahortic.2012.959.1

Cited by 11 publications

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“…However, fractional significant difference was found regarding pH values among different guava varieties at p < 0.05 (Table 1). Physico-chemical estimations are quite important for consumer acceptability and also found to be suitable for cultivar identification (Padilla-Ramirez et al, 2012). Physical dimensions of fruits also help to calculate the number of fruits to be engaged during possible value additions (Demir & Hakki Kalyoncu, 2003).…”

Section: Physico-chemical Analysismentioning

confidence: 99%

Physico-chemical and Nutraceutical Characterization of Selected Indigenous Guava (Psidium guajava L.) Cultivars

et al. 2021

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In order to ascertain physicochemical and nutraceutical attributes, indigenous guava (Psidium guajava L.) cultivars were comprehensively characterized. Eight cultivars namely Gola, Chota Gola, Surahi, Choti Surahi, Sufaida, Sdabahar, Lal Badshah and Karela were selected due to their climatic adaptability and commercial suitability. All the cultivars showed significant variations in terms of their studied quality attributes. Amongst physical characteristics, Gola exhibited highest (79.9 mm 3) GMD with lowest (50.3 mm 3) was estimated in Choti Surahi. Insignificant varietal differences were observed in most of the proximate parameters as well as in mineral contents. Nutraceutical estimations showed significant variation in ascorbic acid (222.26-289.43 mg/100 g), total phenolic contents (94.06-190.64 mg GAE/100 g), total flavonoid contents (81.30-154.19 mg QE/100 g) and radical scavenging activity (27.70-78.15%) in the selected cultivars. A highly significant correlation (R 2 = 0.9970 p < 0.05) was observed between ascorbic acid and radical scavenging activity. In sensory evaluation, Gola received over all maximum scores (8.8) amongst its counterparts. Processed data were then analyzed using Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA). The combination of PCA and HCA yielded in a sufficient discrimination of the examined guava cultivars. In PCA analysis, first two PCA components explained 65.98% of the total variation. Dendrogram successfully classified the tested cultivars into three major groups featuring dissimilarities amongst the cultivars. Research outcome will provide baseline for the farmers, researchers, exporters and other stalk holders to realize the ultimate potential of indigenous guava cultivars for their appropriate commercial utilization.

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Section: Physico-chemical Analysismentioning

confidence: 99%

Physico-chemical and Nutraceutical Characterization of Selected Indigenous Guava (Psidium guajava L.) Cultivars

et al. 2021

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“…Resultados similares han sido relatados por otros autores en trabajos desarrollados en México y otros países. En México se observó alta frecuencia en el germoplasma de accesiones con forma de fruto ovalada o redonda (95 %), color del mesocarpio beige o blanco (92 %) y color externo del fruto amarillo (87.5 %); mientras que en 53 accesiones de guayabo del Valle del Cauca, Colombia también se observó alta frecuencia de accesiones con fruto de forma ovalada (53 %) y alta frecuencia de color externo del fruto amarillo (> a 81 %), aunque el color de mesocarpio más frecuente en países como Colombia, Cuba o Brasil es el rosado y sus variantes (57-58 %) hasta el rojo, lo que coincide con las preferencias de los consumidores en cada país (SANABRIA et al, 2005;VALDÉS-INFAN-TE et al, 2010;RODRÍGUEZ et al, 2004;FERNAN-DES-SANTOS et al, 2010;PADILLA-RAMÍREZ et al, 2012;VALDÉS-INFANTE et al, 2012;PADILLA-RA-MÍREZ et al, 2014).…”

Section: Discussionunclassified

“…Este germoplasma ha sido empíricamente seleccionado por los productores de guayabo de la región, en mayor medida por atributos fenotípicos que por su productividad alta o la calidad del fruto, valorada con variables cuantitativas del fruto tales como el contenido de sólidos solubles totales, el grado de acidez, la jugosidad o el grado de blandura o suavidad del mesocarpio. También, la selección empírica ha favorecido la alta frecuencia de frutos de tamaño intermedio (50 a 100 g), mismos que son los preferidos en el mercado Mexicano, pues muestran características favorables tales como la alta relación entre el peso del mesocarpio y el peso de las semillas, así como bajo proporción de semillas por fruto (PADILLA-RAMÍREZ; GONZÁLEZ-GAONA, 2010; MONDRAGÓN-JACOBO et al, 2010;PADILLA-RAMÍREZ et al, 2012;.…”

Section: Discussionunclassified

“…Los rendimientos de fruta oscilan entre 15.0 -15.5 t.ha -1 , los cuales son mayores a la media nacional (14.45 t ha -1 ) (SIAP, 2015). Sin embargo, comparado con otros países los rendimientos son menores, debido a que la mayor parte de la superficie cultivada tiene suelos con baja fertilidad, reducida disponibilidad de agua para riego, cultivo en huertos de ladera con pendientes pronunciadas y suelos superficiales o poco profundos, así como a la incidencia de agentes bióticos (plagas y enfermedades) y abióticos (sequía y heladas) que afectan la producción (PADILLA-RAMÍREZ et al, 2012).…”

Section: Introductionunclassified

“…El germoplasma regional ha sido seleccionado empíricamente por los agricultores y se denomina genéricamente como "China" y "Media China" MONDRAGÓN et al, 2009;, Sin embargo, se ha detectado variabilidad morfológica y bioquímica en el germoplasma regional entre y dentro de huertos (MARTÍNEZ-DE LARA et al, 2004), dado que el guayabo se propaga comúnmente por semilla (HERNÁNDEZ-DELGADO et al, 2007). La variabilidad afecta el rendimiento y calidad de frutos, susceptibilidad a factores bióticos y/o abióticos y problemas en la comercialización (PADILLA-RAMÍREZ et al, 2012).…”

Section: Introductionunclassified

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Caracterización Morfológica De Germoplasma De Guayabos De México: Implicaciones en Su Conservación Y Mejoramiento Genético

Hernández-Delgado

Padilla-Ramírez

2018

Rev. Bras. Frutic.

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Resumen -El guayabo (Psidium guajava L.) que se cultiva en México muestra variación morfológica y productiva debido a que comúnmente se propaga sexualmente. La caracterización de la diversidad genética permitirá identificar progenitores potenciales para el mejoramiento genético de la especie o para la producción de nuevos materiales clonales. En este trabajo se caracterizaron, con base en 50 descriptores morfológicos, 88 accesiones de guayabo [87 pertenecientes a P. guajava y una a P. friedrichsthalianum (Berg.) Niedz] cultivadas en un banco de germoplasma localizado en Huanusco, Zacatecas, México. El 95% del germoplasma tiene frutos ovoides o redondos, 92% tiene frutos con mesocarpio crema o blanco y 87.5% frutos amarillos. Los frutos con dichas características se denominan regionalmente como 'China' o 'Media China' y son los preferidos para el consumo como fruta fresca o de mesa. Siete características cuantitativas describieron mejor la variabilidad morfológica del germoplasma: dos de árbol (grosor del tallo y longitud de hojas) y cinco del fruto (diámetro polar y ecuatorial; tamaño de sépalo; diámetro de la cavidad del cáliz y contenido de sólidos solubles totales). Tres accesiones (números 68, 52 y 49) sobresalieron por sus valores altos de crecimiento de árbol en campo aunque con frutos pequeños; mientras que otras cinco (números 79, 57, 60, 78 y 56) exhibieron menor crecimiento de árbol pero mayores tamaños de fruto, de sépalos y de la cavidad del cáliz, así como contenido de sólidos solubles totales. Palabras clave: Psidium guajava L., P. friedrichsthalianum (Berg.) Niedz, morphologic diversity, Mexican germplasm. Morphologic characterization of guava germplasm from México: implications about its conservation and breedingAbstract -Guavas (Psidium guajava L.) growing throughout Mexico show broad morphologic and productive variation due the crop is commonly sexual-propagated. The characterization of genetic diversity of Mexican guava germplasm will allow identify potential parents for genetic improvement as well as the production of new clonal cultivars. In this work 88 guava accessions [87 belong to P. guajava and one from P. friedrichsthalianum (Berg.) Niedz] growing in Huanusco, Zacatecas Mexico were characterized on the basis of 50 morphologic descriptors. The 95% of germplasm shows ovoid or round fruit shape; 92% fruits with beige or white mesocarp and 87.5% has yellow fruits. Fruits with these traits are locally named as 'China' or 'Media China' and they are preferred for fresh use. Seven quantitative traits were those that better described the morphologic variability of germplasm: two from trees (stem thickness and leaf length) and five from fruits (polar and equatorial diameter; sepal size; calyx cavity diameter; and total solid soluble content). Three accessions (numbers 68, 52, and 49) outstand due their high values of tree growth under field conditions although showing small fruit sizes while other five accessions (numbers 79, 57, 60, 78, and 56) exhibited small tree sizes but high values for fru...

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Development of single nucleotide polymorphism markers and genetic diversity in guava (Psidium guajava L.)

Diaz‐Garcia

Padilla-Ramírez

2022

Plants People Planet

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Societal impact statement There are many understudied fruits of great economic and productive importance for regional agricultural hubs. Guava is an American fruit species with attractive nutritional and adaptability characteristics. However, in many countries like Mexico, its cultivation is still limited to small‐to‐medium size plantings and home gardens and depends on poorly controlled germplasm that diminishes productivity and expansion. Our study provides valuable insight to better understand guava diversity and generate high‐yielding, high‐quality, and better adapted materials. Supporting the study and development of understudied crops will provide us with more resources for facing climate change adversities and for diversifying cropping systems. Summary Guava (Psidium guajava L.) is a fruit crop species native to tropical and subtropical regions of America with great productive and economic potential due to its extensive environmental adaptability, nutritional value, and medicinal properties. However, the lack of molecular resources for accelerated breeding, limited knowledge about its evolutionary and domestication history, and unfavorable policies have limited its genetic improvement and broader adoption as a commercial fruit crop. Here, we present the first diversity study in guava employing genome‐wide single nucleotide polymorphisms (SNPs). Forty‐eight accessions collected from Mexico and other continents were examined with more than 6000 high‐quality SNP markers, which represents a marker density increase of ~30x compared with previous studies. Relationships between genetic groupings and geographic origins were not apparent in this diverse guava collection using principal component and structure analyses. Extensive germplasm exchange among guava‐producing regions and limited varietal control at commercial plantations might have contributed to ambiguities when defining the true origin and identities of existing germplasm materials. However, an analysis of domestication syndrome traits (fruit size and sugar) by wild or improved germplasm revealed several putative genomic regions under selection. Knowledge about germplasm origins and genetic relatedness, in conjunction with reliable molecular resources and better agronomic practices, is necessary to support breeding efforts and facilitate broader adoption of orphan crops such as guava, which have increasingly important roles in light of climate change adversities and in diversifying diets and food systems.

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International Market of Fresh and Processed Guava: Challenges and Perspectives for the Mexican Case

Cited by 11 publications

References 0 publications

Physico-chemical and Nutraceutical Characterization of Selected Indigenous Guava (Psidium guajava L.) Cultivars

Physico-chemical and Nutraceutical Characterization of Selected Indigenous Guava (Psidium guajava L.) Cultivars

Caracterización Morfológica De Germoplasma De Guayabos De México: Implicaciones en Su Conservación Y Mejoramiento Genético

Development of single nucleotide polymorphism markers and genetic diversity in guava (Psidium guajava L.)

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