scholarly journals Effect of COVID-19 on the phytosanitary condition and commercialization of avocado in Jalisco

Author(s):  
Cecilio Castañeda-Cabrera ◽  
Catarino Perales-Segovia ◽  
Mario A. Miranda-Salcedo ◽  
Ernesto González Gaona

<p>Avocado crop (<em>Persea americana</em>) in Ciudad Guzmán, Jalisco, Mexico, is affected by pests and diseases that have worsened with the COVID-19 (SARS-CoV-2) pandemic. Damage to fruits has increased due to the reduction of the workforce by more than half, which restricts crop sampling and the timely control of pests. Furthermore, the closure of businesses and the consequent lack of agricultural inputs have affected the management and profitability of avocado crop. The restricted access to markets such as Monterrey, Mexico City and Guadalajara has also affected avocado availability.</p>

2020 ◽  
Author(s):  
Eneas Aguirre-von-Wobeser ◽  
Alexandro Alonso-Sánchez ◽  
Alfonso Méndez-Bravo ◽  
Luis Alberto Villanueva Espino ◽  
Frédérique Reverchon

AbstractBark is a permanent surface for microbial colonization at the interface of trees and the surrounding air. However, little is known about the microbial communities harbored on these tissues. Studies on bark microbial ecology show a dominance of bacteria from a few phyla. Bark microbial communities of avocado (Persea americana) could have implications for tree health, as a first barrier for defense against certain pests and diseases in this economically important species. We used shotgun metagenomic sequencing to analyze the bark microbial communities of avocado trees from two orchards, and compared one of them to rhizospheric soil. Our results show that the microbial communities of avocado bark have a well-defined taxonomic structure, with consistent patterns of abundance of bacteria, fungi and archaea, even in trees from two different locations. Bacteria in avocado bark were dominated by Proteobacteria (particularly Alphaproteobacteria), Actinobacteria and Bacteroidetes, consistently with bark communities in other trees. Fungal members were dominated by Ascomycota and Basidiomycota, while most Archaea in bark were Euryarchaeota. We can conclude that avocado bark is a well-defined environment, providing niches for specific taxonomic groups. The present in-depth characterization of bark microbial communities can form a basis for their future manipulation for agronomical purposes.


Planta Medica ◽  
2012 ◽  
Vol 78 (05) ◽  
Author(s):  
HRW Dharmaratne ◽  
BL Tekwani ◽  
MR Jacob ◽  
NPD Nanayakkara
Keyword(s):  

Phyton ◽  
2016 ◽  
Vol 85 (1) ◽  
pp. 218-224 ◽  
Author(s):  
Cardoso PF ◽  
JA Scarpassa ◽  
LG Pretto-Giordano ◽  
ES Otaguiri ◽  
SF Yamada-Ogatta ◽  
...  

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Musdar Musdar ◽  
Lukmanul Hakim ◽  
Juliani Juliani ◽  
Jailani Jailani

White sweet potato starch (Ipomea batatas L.) and avocado seed starch (Parsea americana Mill) derived from local plants have the potential to be developed as agricultural products. Starch is a hydrocolloid compound as a potential local resource to be utilized. Glycerol function as an anti-freezing which is hygroscopic. This study aims to determine the ratio of white sweet potato starch with avocado seed starch and the concentration of glycerol for making edible film. This study was an experiment using a completely randimized factorial design with 2 (two) main factor consisting of a comparison of white sweet potato starch and avocado seed with 3 levels: P1 = 35%:65%., P2=50%:50%., P3=65%:35% and glycerol concentration with 3 levels: G1=1%., G2=2%., G3=3%. The best result reasearch were content of 23.03% (tratment P1G1), solubility of 55.57% (treatment P3G2)., swelling test of 9.83% (treatment P2g3)., elongation of 8.18% (treatment P3G2)


2020 ◽  
Vol 17 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Antonio Alejo

There is a pressing need to extend our thinking about diplomacy beyond state-centric perspectives, as in the name of sovereignty and national interests, people on move are confronting virtual, symbolic and/or material walls and frames of policies inhibiting their free movement. My point of departure is to explore migrant activism and global politics through the transformation of diplomacy in a globalised world. Developing an interdisciplinary dialogue between new diplomacy and sociology, I evidence the emergence of global sociopolitical formations created through civic bi-nationality organisations. Focusing on the agent in interaction with structures, I present a theoretical framework and strategy for analysing the practices of migrant diplomacies as an expression of contemporary politics. A case study from North America regarding returned families in Mexico City provides evidence of how these alternative diplomacies are operating.


Somatechnics ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 198-215
Author(s):  
Robert McRuer

Theorists of neoliberalism have placed dispossession and displacement at the centre of their analyses of the workings of contemporary global capitalism. Disability, however, has not figured centrally into these analyses. This essay attends to what might be comprehended as the crip echoes generated by dispossession, displacement, and a global austerity politics. Centring on British-Mexican relations during a moment of austerity in the UK and gentrification in Mexico City, the essay identifies both the voices of disability that are recognized by and made useful for neoliberalism as well as those shut down or displaced by this dominant economic and cultural system. The spatial politics of austerity in the UK have generated a range of punishing, anti-disabled policies such as the so-called ‘Bedroom Tax.’ The essay critiques such policies (and spatial politics) by particularly focusing on two events from 2013: a British embassy good will event exporting British access to Mexico City and an installation of photographs by Livia Radwanski. Radwanski's photos of the redevelopment of a Mexico City neighbourhood (and the displacement of poor people living in the neighbourhood) are examined in order to attend to the ways in which disability might productively haunt an age of austerity, dispossession, and displacement.


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