Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

This paper studies short stories from the collection La bondad de los extraños (2014) by Solange Rodríguez Pappe. It places the work of this Ecuadorian writer in the in-between spaces of traditional and subversive narrative models from where she operates to propose innovate ways of telling stories. This essay uses a theoretical framework based on science fiction cultural studies that allows highlighting the breadth and depth of the scope of Solange Rodriguez Pappe›s writing.

La batalla por el buen cine. Textos críticos 1961-1963, essays by Armando Robles Godoy

Barrocos. Mímesis, legado y orfandad, essays by Santiago Cevallos

Crónica para jaibas y cangrejos, novel by Dalton Osorno

Herederos de las sombras, short stories by Luis Antonio Aguilar Monsalve

Estancias, androgynous novel by Alicia Ortega Caicedo

Sendas de On. 100 Haikus, by Israel Muñoz

Coffee production is limited by pests, which reduce yields and lower quality. The objectives of this research were the identification of phytopathogenic bacteria, description of symptoms in the field and in vitro sensitivity to bactericides for agricultural use. Four coffee farms from the department of Jinotega and one from the department of Matagalpa, with a history of bacterial diseases, were selected; the tissue samples collected consisted of leaves, bandolas, fruits, and flowers. The identification of genera of phytopathogenic bacteria was carried out from the morphological characteristics of bacterial growth and the presence of fluorescent pigments in King B. The identification of bacteria species was carried out with an oxidase test and acid production tests from carbohydrates. The pathogenicity of the bacteria was evaluated by means of the hypersensitivity test in tobacco plants (Nicotiana tabacum L.) as a non-host plant. The sensitivity and inhibition of bacteria to bactericides was determined by the Bauer- Kirby method (agar diffusion method) and was evaluated in diameters (mm). The bactericides evaluated were oxytetracycline hydrochloride 5 WP, streptomycin plus oxytetracycline 16. 5 WP, oxolinic acid 20 WP and copper sulfate 24 SC. The species of bacteria identified were Pseudomonas syringae, Pseudomonas corrugata and Pseudomonas cichorii. In this investigation Pseudomonas cichorii was the most frequent in the different isolates, Pseudomonas syringae was isolated in all the coffee varieties sampled. The isolated bacterial species were positive to the hypersensitivity test, indicating that they are pathogenic for coffee cultivation. The symptoms on leaves, branchs and flowers caused by Pseudomonas spp are dark-brown spots, irregular in shape and size, generally surrounded by yellowish and translucent halos. The bactericide that showed the best effect by showing larger diameters in the bacterial inhibition halos was oxolinic acid.

Most of the coffee production in Nicaragua is grown under shade, which allows the capture of significant volumes of carbon from the atmosphere that, under the concept of payment for environmental services, would mean the generation of other income for the producer. The objective was to calculate the volumes of carbon stored by trees, coffee bushes, mulch and soil in the agroforestry system with coffee and estimate its economic value. The research was non-experimental under a methodological process of three phases: planning, execution and analysis and interpretation of results; The sample was selected based on criteria defined by the Union of Cooperatives, among them: leading producer in his community, altitudinal floor between 600 and 900 m, producer open to communication and who applied the training provided by the Cooperative, the sample It was composed of two agroforestry systems close to 900 masl and two close to 600 masl. A single sampling plot of 0.25 ha was used to whose sampled trees and shrubs allometric equations were applied, the mulch was subjected to moisture discount, dry matter was obtained from them and the carbon factor of 0.5 was applied. For the soil, apparent density (g cm-3) and organic carbon (%) were determined to be used in the formula of Andrade and Ibrahim, 2003. The soil component was the one that presented the highest average volume of stored carbon with 80.86 t C ha-1 followed by trees, mulch and coffee bushes with 15.58, 6.21 and 1.22 t C ha-1 respectively. The agroforestry systems with the highest and lowest volume of carbon stored were Los Chilamates and Las Quebradas with 119.22 and 89.01 t C ha-1. Based on the carbon stored, producers could receive other income from carbon capture from 874.36 to 652.80 US dollars per hectare. based on stored CO2. It is recommended to carry out the study with a greater number of producers and have relevant base information to manage the carbon storage payment project.

Citrus production in Nicaragua is of great economic importance since it generates foreign currency for the country and this industry also generates direct and indirect jobs. However, citrus areas are threatened by the disease known as huanglongbing (HLB), which is transmitted by the psyllid Diaphorina citri. Therefore, the main objective of this research was to generate information related to the detection of the causative agent of HLB (Candidatus Liberibacter asiaticus – CLas) and the population fluctuation of Diaphorina citri in four citrus nurseries in the department of Masaya, Nicaragua. For four months, the detection of the causative agent of huanglongbing was carried out through the PCR technique, the vector population fluctuation, and the effect of insecticide usage on the insect population fluctuation were determined. In the study of population fluctuation yellow traps were used, which were checked at 8-day intervals. The causal agent of huanglongbing was detected in the four nurseries. All three stages of the psyllid occurred during the study period. The highest population peaks of adults occurred in April, coinciding with high temperatures and low rainfall. The CLas variant is the one that was present in the four nurseries. The population fluctuation of Diaphorina citri by nursery was variable over time. The highest population peaks were observed in the month of April. Insecticide applications reduced the populations of Diaphorina citri in each of the nurseries