scholarly journals Origin and evolution of tomato production Lycopersicon esculentum in México

2017 ◽  
Vol 47 (3) ◽  
Author(s):  
Tarsicio Medina Saavedra ◽  
Gabriela Arroyo Figueroa ◽  
Jorge Gustavo Dzul Cauih

ABSTRACT: Lycopersicon esculentum known as tomato, although has an Andean origin is a contribution of Mexico to the world is, being the first agricultural product to be exported. This research aimed to review the literature in relation to the origin and evolution of the production of tomato in Mexico within the historical development of the country. In ancient times, the tomato was cultivated in milpas (open field) and chinampas (artificial islands for riparian agriculture) using sustainable methods. Spanish colonizers showed the tomato to the rest of the world and diversified its uses. In independent Mexico, haciendas and railroads integrated the different farming regions. Production decreased during the Mexican revolution, and with land reform, the milpa returned. During the Green Revolution (1970), Sinaloa stood out, with the separation of two systems, subsistence, and modern with technology programs. Biotechnological development (1990) emerged parallel to organic production. So actually with this system, we could return to more sustainable pre-Hispanic ecological principles with less environmental impact.

Plant Disease ◽  
2002 ◽  
Vol 86 (2) ◽  
pp. 156-161 ◽  
Author(s):  
P. A. Abbasi ◽  
J. Al-Dahmani ◽  
F. Sahin ◽  
H. A. J. Hoitink ◽  
S. A. Miller

Field trials were conducted over 2 years to assess the effects of compost amendments on disease development in organic and conventional processing tomato (Lycopersicon esculentum L.) production systems. The incidence of anthracnose fruit rot was reduced in organic tomato plots amended with a high rate of composted cannery wastes compared with the incidence in nonamended control plots in 1998 when disease incidence was high. Marketable yield was increased by 33% in compost-amended organic plots. Plots amended with a high compost rate had more ripe fruit than the nonamended control. The incidence of anthracnose and of total disease on fruit was less on the cultivar OH 8245 than on Peto 696. Total fruit yield of OH 8245 but not Peto 696 in organic plots was increased by amendment with composted cannery wastes. In conventional tomato production, composted yard wastes increased disease severity on foliage both years but reduced bacterial spot incidence on fruit in 1997, when disease pressure was high. The incidence of anthracnose was not affected by composted yard wastes. Marketable and total fruit yields of Peto 696 were not increased in compost-amended conventional plots. The plant activator Actigard reduced foliar disease severity and the incidence of bacterial spot and anthracnose on fruit, while increasing yield of marketable fruit.


2002 ◽  
Vol 82 (4) ◽  
pp. 771-780 ◽  
Author(s):  
X. Hao ◽  
A. P. Papadopoulos

Two full spring season tomato crops (Lycopersicon esculentum Mill. “Trust”) were grown in an open rockwool system with standard rockwool feeding formulae (O-R; conventional method), and in closed rockwool systems with standard rockwool (C-R) or Nutrient Film Technique (C-NFT) feeding formulae (modified in 1997) in 1996 and 1997 to examine the feasibility of a fully closed rockwool production system with appropriate feeding formulae. The closed rockwool system with optimized feeding formulae achieved high marketable yield, similar to that of the open rockwool system. There were no differences in early plant growth, plant biomass or biomass partitioning, and in total fruit yield, size and grades except for the closed rockwool system with the standard rockwool feeding formulae (C-R), which had lower yield than C-NFT in the last month of harvest in 1996. The photosynthesis of old foliage was higher and the root systems at the end of the experiments were rated healthier in plants grown in the closed (C-R and C-NFT) systems than in plants grown in the open (O-R) system. Over 30% of water and fertilizer was saved with the closed systems in comparison to the conventional open system. These results demonstrated that closed rockwool systems with optimized nutrient feedings are economically and environmentally sound alternative methods for greenhouse tomato production in Ontario. Key words: Lycopersicon esculentum, tomato, yield, recycling, rockwool, greenhouse


Plant Disease ◽  
2019 ◽  
Vol 103 (11) ◽  
pp. 2764-2770 ◽  
Author(s):  
Jialin Yu ◽  
Gary E. Vallad ◽  
Nathan S. Boyd

Fusarium wilt (Fusarium oxysporum f. sp. lycopersici), root-knot nematodes (Meloidogyne spp.), and purple nutsedge (Cyperus rotundus L.) are among the most damaging soilborne pests for tomato (Lycopersicon esculentum Mill.) production in the southeastern United States. Allyl isothiocyanate (allyl ITC) was evaluated as a potential fumigant alternative for control of soilborne pathogens, nematodes, and weeds. Shank- or drip-injected allyl ITC at rates ranging from 221 to 367 kg ha−1 exhibited excellent performance, reducing the recovery of total F. oxysporum from treated soils. Shank- or drip-injected allyl ITC at 367 kg ha−1 provided equivalent control of C. rotundus compared with 1,3-dichloropropene + chloropicrin and metam potassium, respectively. Totally impermeable film (TIF) did not further reduce the recovery of F. oxysporum and various nematodes from soil treated with allyl ITC compared with virtually impermeable film (VIF). However, TIF mulch significantly improved C. rotundus control versus shank- or drip-injected allyl ITC treatments under VIF mulch. Overall, allyl ITC is an effective methyl bromide alternative against F. oxysporum, C. rotundus, and plant-parasitic nematodes Criconemella spp. and Hoplolaimus spp. in plasticulture tomato production.


2011 ◽  
Vol 18 (3) ◽  
pp. 893-906
Author(s):  
John Mraz

Revolutionary wars have devastating and far-reaching effects on the health of the populations caught up in them. However, the deaths and injuries produced by weaponry are only part of the story, because diseases resulting from malnutrition and contaminated drinking water account for the majority of medical problems. This essay uses photographs and testimonies of participants to explore health issues during the Mexican Revolution (1910-1920), as well as incorporating secondary literature on this question. Furthermore, photographic images are not presented as simple (indexical) windows onto the world. Rather, the author attempts to identify the imagemakers and provide explanations that help in imagining the reasons behind the making of the photographs.


Gradus ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 26-31
Author(s):  
Endre Pölös ◽  
Csaba Szabó ◽  
András Palkovics ◽  
Fernanda Delgado

In our experiment, we used allelochemicals in vegetable production that can be incorporated in part or in whole into integrated pest management or in organic production. The plant extracts we used can be applied to the crop in the same way as conventional pesticides. Correlations can be found between the allelochemicals that we used in plant protection, the positive change in the average yield, the reduction of harmful organisms and the health status of the cultivated plants. Bioherbicide has been shown to be an effective weed control containing allelochemicals that inhibit photosynthesis.Extracts of extremely hot chili pepper (Capsicum annuum ssp.) varieties, aqueous solutions of essential oils of herbs and spices were used for plant protection in tomato plantations under open field conditions. The results show that chili pepper extract is a strong repellent, and lavender (Lavandula angustifolia) essential oil solution has a repellent, fungicidal and bactericidal effect at the same time.


Author(s):  
Olha KHAIETSKA

The article describes the current state of development of the world and domestic market of organic products, countries where there are the highest rates of development of certified production, countries with the highest consumption of organic products per capita and countries with the largest areas of organic agricultural land. The organic products market in Ukraine has been analyzed from the beginnings to the present state, indicating all stages of development and the problems that have arisen, as well as the basic laws on organic production, certified organic products, countries and companies operating on the domestic market. The area of land with organic status, the total number of certification bodies, the number of operators in this market in the regions of Ukraine is indicated. In the article a comparative analysis of Ukrainian organic production with world production is conducted, the countries-leaders for the areas occupied by organic production are specified. The list of certified in Ukraine types of organic products, which are consumed both on the domestic market and exported to different countries of the world, is determined. The article deals with the dynamics of the internal market of organic products for 2002-2017 years. The basic principles of organic agriculture, which focus on the preservation of the environment and natural resources, are presented and a mechanism for promoting organic production by agricultural enterprise. The benefits of this production are also described, including: health benefits, environmental, social and economic benefits. The urgent problems of the organic products market are determined, directions of state policy in the field of organic production are proposed, which will promote the development of organic production in Ukraine and the circulation of domestic organic products in the world.


Author(s):  
Abichal Poudel ◽  
Karuna Kafle

Tomato (Solanum lycopersicum L.) is a very important vegetable crop of the world. However, there is a huge loss in tomato production due to pest and disease incidence. Tomato leaf miner is a devastating pest of tomato and other Solanaceous crops in many vegetable crop growing areas around the world and it also attacks non-solanaceous crops. The larva is the most devastating stage of tomato leaf miner. After egg hatching, the larvae feed on tomato fruits, leaves, flower buds, and young shoots and create mines and galleries. Larval feeding may reduce tomato production by 80-100 % in an open field as well as in a plastic house if no control measures are carried out. Chemical control has been found ineffective due to a wide host range and has developed resistance to dozens of pesticides. Hence, Integrated Pest Management (IPM) practices involving mass trapping of the pest using pheromone trap, biological control by a predator, parasitoid, entomopathogenic microbes, including cultural practices should be implemented for the effective control of this pest.


2021 ◽  
Vol 12 ◽  
Author(s):  
Xin Li ◽  
Jia Chang ◽  
Shunmei Chen ◽  
Liangge Wang ◽  
Tung On Yau ◽  
...  

In December 2019, the world awoke to a new betacoronavirus strain named severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Betacoronavirus consists of A, B, C and D subgroups. Both SARS-CoV and SARS-CoV-2 belong to betacoronavirus subgroup B. In the present study, we divided betacoronavirus subgroup B into the SARS1 and SARS2 classes by six key insertions and deletions (InDels) in betacoronavirus genomes, and identified a recently detected betacoronavirus strains RmYN02 as a recombinant strain across the SARS1 and SARS2 classes, which has potential to generate a new strain with similar risk as SARS-CoV and SARS-CoV-2. By analyzing genomic features of betacoronavirus, we concluded: (1) the jumping transcription and recombination of CoVs share the same molecular mechanism, which inevitably causes CoV outbreaks; (2) recombination, receptor binding abilities, junction furin cleavage sites (FCSs), first hairpins and ORF8s are main factors contributing to extraordinary transmission, virulence and host adaptability of betacoronavirus; and (3) the strong recombination ability of CoVs integrated other main factors to generate multiple recombinant strains, two of which evolved into SARS-CoV and SARS-CoV-2, resulting in the SARS and COVID-19 pandemics. As the most important genomic features of SARS-CoV and SARS-CoV-2, an enhanced ORF8 and a novel junction FCS, respectively, are indispensable clues for future studies of their origin and evolution. The WIV1 strain without the enhanced ORF8 and the RaTG13 strain without the junction FCS “RRAR” may contribute to, but are not the immediate ancestors of SARS-CoV and SARS-CoV-2, respectively.


2018 ◽  
Vol 19 (1) ◽  
pp. 75-98
Author(s):  
Nurliana Kamaruddin

The study of East Asia has generally focused on its national development experience with emphasis given to industrial urban-based growth. However, the region has also been credited for impressive rural growth due to the Northeast Asian land reform and overall investment for a Green Revolution by states. Less emphasis has been given to a comparative exploration of different rural development programs that existed. Studies on rural development programs within the region have been diverse with case-specific perspectives, rather than in accordance with a unified conceptualization of what it means to have successful rural development. This article attempts to address that gap by evaluating two cases, the South Korean Saemaul Undong and the Malaysian Federal Land Development Authority (FELDA). It applies three different development perspectives; the neoliberal approach, the developmental state approach, and the humancentered approach, to determine the degree to which these programs can be considered successful. An East Asian conceptualization of successful rural development is identified based on an emphasis on government capacity, grassroots participation, a shared mentality for national development and a prioritization on building human capital.


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