Centro Regional Salta - Jujuy: Envíos recientes
Mostrando ítems 201-220 de 254
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Molecular identification and pathogenicity of Rhizoctonia spp. from tobacco growing areas in northwestern Argentina
(2015-06)In Argentina, more than 60 % of the tobacco crops are grown in the northwestern part of the country and where Rhizoctonia solani leads to a reduction in crop yield and quality. In this study, 35 isolates of Rhizoctonia ... -
Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil
(Elsevier, 2017-11)The inclusion of tropical grass forage as a cover crop (CC) could be a useful tool to improve microbiological activity and, consequently, soil quality. The aim of this study was to evaluate the effect of Brachiaria brizantha ... -
Genetic characterization and pathogenicity of Rhizoctonia solani associated with common bean web blight in the main bean growing area of Argentina
(2016-12)Common bean web blight (WB), caused by the fungus Rhizoctonia solani (teleomorph Thanatephorus cucumeris), is among the endemic fungal diseases of major impact in north‐western Argentina (NWA). This study aimed to analyse ... -
Participatory, multi-criteria evaluation methods as a means to increase the legitimacy and sustainability of land use planning processes. The case of the Chaco Region in Salta, Argentina
(2017-02)Conflicts over land use and ownership are common in South America and generate frequent confrontations among indigenous peoples, small-scale farmers, and large-scale agricultural producers. We argue in this paper that an ... -
Molecular identification and pathogenicity of 'Rhizoctonia' spp. recovered from seed and soil samples of the main bean growing area of Argentina
(2017-08)The objective of this study was to perform the molecular and pathogenic characterization of Rhizoctonia solani in bean seed and soil samples from fields with root rot symptoms in northwestern Argentina. Fifty-two Rhizoctonia ... -
Relationship between microbial functions and community structure following agricultural intensification in South American Chaco
(Czech Academy of Agricultural Sciences, 2016-07)Intensification of agricultural systems through the use of intensive agriculture and the advance of deforestation have led to a decrease of soil biological quality. Soil functional and structural microbiota are sensitive ... -
Antagonistic effects of Bacillus subtilis subsp. subtilis and B.amyloliquefaciens against Macrophomina phaseolina: SEM study offungal changes and UV-MALDI-TOF MS analysis of their bioactivecompounds
(Elsevier, 2016-01)The antifungal effect of Bacillus subtilis subsp. subtilis PGPMori7 and Bacillus amyloliquefaciens PGPBacCA1 was evaluated against Macrophomina phaseolina (Tassi) Goid. Cell suspension (CS), cell-free supernatant (CFS) and ... -
Agricultural expansion in the Semiarid Chaco: poorly selectivecontagious advance
(Elsevier, 2016-09)Clearance for agriculture or cattle ranching was the dominant land-cover change during the last two decades in the South American Dry Chaco. The Argentinean portion has been particularly affected, presenting greater ... -
Physiological bases of genetic gains in sugarcane yield in Argentina
(Elsevier, 2015-04)Breeding and management efforts during the 20th century have increased sugar yield in almost all sugarcane areas worldwide. However, a close analysis of the trends during the last decades reveals that the rate of increase ... -
Genetics and mapping of a new anthracnose resistance locus in Andean common bean Paloma
(2017-04)Background: The Andean cultivar Paloma is resistant to Mesoamerican and Andean races of Colletotrichum lindemuthianum, the fungal pathogen that causes the destructive anthracnose disease in common bean. Remarkably, Paloma ... -
Biocontrol of Sclerotinia sclerotiorum (Lib.) de Bary on common bean by native lipopeptide-producer Bacillus strains
(2018-06)Bacillus sp. B19, Bacillus sp. P12 and B. amyloliquefaciens B14 were isolated from soils of Salta province, and PGPR properties on the common bean (Phaseolus vulgaris L.) cv. Alubia and antagonistic activity against ... -
Characterization of common bean wild populations for their in situ conservation in Northwestern Argentina
(2017-08)In situ conservation of wild species is a method of conservation that allows keeping populations in their natural environments, and set the strategies for maintaining the natural populations. The Active Bank of Northwestern ... -
The evolutionary history of Senna ser. Aphyllae (Leguminosae–Caesalpinioideae), an endemic clade of southern South America
(2017-12)In the legume genus Senna, series Aphyllae includes seven species of leafless shrubs and subshrubs from arid, semiarid and xerophilous areas of three different biogeographic subregions in southern South America. In this ... -
Characterization of Fusarium species associated with tobacco diseases in Northwestern Argentina
(2018-08)Tobacco (Nicotiana tabacum L.) production is centred in the northwestern region of Argentina (NWA), where the incidence of root rot and stem diseases has increased considerably in recent years. This study aimed to analyse ... -
Molecular, morphological and pathogenic diversity of Sclerotinia sclerotiorum isolates from common bean (Phaseolus vulgaris) fields in Argentina
(2018)White mould, caused by Sclerotinia sclerotiorum, is one of the most threatening fungal diseases occurring across major bean production regions worldwide. In Argentina, under favourable weather conditions, up to 100% seed ... -
Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
(2016-08)An oil‐based formulation of the EG95 vaccine to protect grazing animals against infection with Echinococcus granulosus was formulated in Argentina. The efficacy of the vaccine was monitored by serology in sheep and llama ... -
Effects of IFN-γ coding plasmid supplementation in the immune response and protection elicited by Trypanosoma cruzi attenuated parasites
(BioMed Central, 2017)Background: Previous studies showed that a naturally attenuated strain from Trypanosoma cruzi triggers an immune response mainly related to a Th2-type profile. Albeit this, a strong protection against virulent challenge ... -
Can't see the forest for the trees: can declining deforestation trends in the Argentinian Chaco Region be ascribed to efficient law enforcement?
(Elsevier, 2018)A national “Forest Law” passed in Argentina in 2007 mandated provincial governments to set up and implement land use planning processes in order to protect their native forests and regulate the expansion of large-scale ... -
Silvopastoral systems of the Chaco forests: effects of trees on grass growth
(Elsevier, 2018)The area devoted to Silvopastoral systems is increasing worldwide due to its complementary production of beef and wood. Understanding the competition between trees and grasses is critical to identify potential trade-offs ... -
Multi-environmental evaluation for grain yield and its physiological determinants of quinoa genotypes across Northwest Argentina
(2014)The quinoa growing region of Northwest Argentina (NWA) shows a strong environmental variability, both seasonal and spatial. In consequence, the site-year combinations in which yield trials are established can complicate ...