http://hdl.handle.net/20.500.14067/1378 2026-04-09T11:41:35Z http://hdl.handle.net/20.500.14067/12916 Comparative study of the doses of cytokinin in the quality of caigua (Cyclanthera pedata L.) in Peru Castañeda Chirre, Elvira Teofila; Cruz Nieto, Dante Daniel; Castro Bartolomé, Héctor Jorge; Legua Cardenas, José Antonio; Nunja García, José Vicente; Vélez Chang, Yasmin Jesús; Luque Vilca, Olivia Magaly; Ito Díaz, Raul Reynaldo; Calizaya Llatasi, Fredy Grimaldo; León Gomez, Rodolfo; Maldonado Mamani, Ricardo Anibal Bioavailability of nutrients, the scarcity of synthetic fertilisers, and the rising cost of fuel have all contributed to an increase in production costs, which has in turn reduced crop productivity and led scientists to seek out new methods to ensure high-quality output. In this context, various cytokinins dosages were tested in Peru to see whether they affected the quality of caigua, in an effort to address these issues. To mitigate these problems, a pot experiment was carried out to check the effects of various doses of cytokinin in the quality of caigua in Peru. The experiment consisted of 5 treatments including (0, 50, 100, 150 and 200 mL of cytokinin) by using (Anthesis Plus per 200 L of water) as a source, each with three replicates and placed following a randomized complete block design (RCBD). Treatment with 100 mL of cytokinins foliar analysis resulted in a caigua length of 18.9 cm, an increase in diameter of 5.65 cm, and an improvement in pulp thickness of 7.60 millimeters. Physiological parameters of caigua plants taken after 45 days of sowing were considerably improved with the same treatment. Similarly, N, K and Zn concentration in leaf was higher in case of 100 mL of cytokinins foliar analysis. Therefore, policymakers must advise using the recommended quantity of cytokinins to bring about regime transition, and formers can gain by injecting 100 mL of cytokinins to boost production and the economy. It was concluded that the adequate dose of cytokinins is in treatment T3, which raised value of potassium concentration in leaves, this influenced optimal development, strengthening against environmental stress and therefore quality. For this reason, research was carried out on the comparative study of cytokinin doses in the quality of caigua in Peru; the objective was to determine the appropriate dose to obtain higher quality fruit. Likewise, it was underlined that the objective was to employ an ecological alternative of plant origin such as the usage of phytohormone that stimulates the growth of the plant and consequently the quality of the fruit. The obtained the results were served as a recommendation for farmers in the area 2025-12-30T00:00:00Z http://hdl.handle.net/20.500.14067/12913 Increase in anthocyanins and their relationship with nutrition, stomatal density, and yield of purple lettuce (Lactuca sativa L.) nourished with humus based on vegetable waste Castañeda Chirre, Elvira Teofila; Cruz Nieto, Dante Daniel; Castro Bartolomé, Héctor Jorge; Nunja García, José Vicente; Chirito Laurencio, Carlos Alejandro; Lomparte Ramos, Fanny del Pilar; Cruz Nieto, Abel Eduardo; Gástulo Chávez, Mará Elena; Hijar Guzman, Raymundo Javier; Gavedia Garcia De Hijar, Gladys Margot; Aguilar Anccota, Rene; Caira Mamani, Cirilo Mario; Morales Alberto, Manuel Nicolas; Chiclla Salazar, Armando Global food security faces challenges due to the geopolitical situation, climate change, unhealthy diets, and the post-pandemic period. In Peru, the effects of the socioeconomic crisis were also felt, especially in the increase in food prices. For this reason, research was conducted on the increase of anthocyanins and their relationship with nutrition, stomatal density, and the yield of purple lettuce nourished with humus based on vegetable waste (HBVW). The objective was to determine the increase in anthocyanins in relation to nutrition, stomatal density, and the yield of purple lettuce nourished with HBVW. The methodology is based on applied research with an experimental approach; for this, a completely randomized block design was used, consisting of 3 blocks and 5 treatments, which were T1 with 0, T2 with 6, T3 with 8, T4 with 10, and T5 with 12 t ha-1 of HBVW. The doses were applied 15 days after transplanting, and physical characteristics were evaluated (total plant length, weight of purple lettuce, diameter of purple lettuce, and commercial yield), nutrient concentration in leaves (nitrogen, potassium, phosphorus, calcium, magnesium, sulfur, molybdenum, iron, manganese, copper, zinc, boron, chlorides, and sodium), anthocyanin concentration, total nitrogen, and phosphorus consumption. Also the stomatal density and profitability. Results determined that T5 stood out in total plant length with 28.90 cm, lettuce weight with 96.33 g, diameter with 17.07 cm, and commercial yield with 19.387 t ha-1 . Total nitrogen consumption with 291.44 kg ha-1 and total phosphorus pentoxide consumption with 412.98 kg ha-1 and profitability with 88.4%. Nutrient concentration in T4 leaves with sulfur, molybdenum, manganese, copper, zinc, and boron. Anthocyanin concentration T2 with 364.62 mg/100 g and stomatal density T1 with 460 stomata/mm². He concluded that the appropriate dose (T4) significantly stood out in anthocyanin concentration and yield. This dose provided nutrients to the soil that improved availability for greater absorption by the plant, which influenced higher nutrient concentration and an adequate number of stomata in the leaves. These biochemical characteristics optimized the reactions of photosynthesis, carbohydrate formation, and translocation and increased anthocyanin synthesis. Resulting in a strengthening against nutritional and environmental stress, pests, and reactive oxygen species (ROS) 2025-07-21T00:00:00Z http://hdl.handle.net/20.500.14067/12401 ¿Qué temas se investigan en la economía circular? un análisis de co-palabras mediante agrupamiento jerárquico Ausejo Sanchez, Jose Luis; Ramos La Rosa, Patricia Elena; Medina Palma, Damaris Fabiola; Ching Campos, Gleny Amelia; Maguiña Poma, Yolanda Emperatriz Objective. We analyzed the most researched topics related to the circular economy. To this end, we used a bibliometric approach, generating thematic maps that group the most used terms in the scientific literature. Design/Methodology/Approach. The present study focused on hierarchical clustering analysis to identify and understand interrelated themes in circular economy research. Adopting Ward’s method, the analysis was performed without predetermining the number of groups. The data set was extracted from the Scopus database. Author keywords and keywords plus were used for the study. Results/Discussion. A hierarchical clustering analysis applied to the corpus of circular economy terms has revealed five main groups: (1) technological innovation and strategic planning, (2) adaptation and resilience in industrial processes, (3) reuse and advanced manufacturing, (4) safety and automation in the circular economy, and (5) material science and chemical sustainability. The interrelationship between the clusters identified in the analysis reflects an integrated thematic ecosystem within the circular economy, with each cluster complementing the others to address multifaceted challenges. Cluster 1, focused on the “circular economy” and “sustainable development,” is the strategic core connecting all clusters’ tech- nological and policy approaches. This cluster establishes direct links with cluster 3, where concepts such as “recycling” and “additive manufacturing” are essential to materialize the reuse strategies proposed. Cluster 2, focused on adaptation and resilience, establishes a critical connection with cluster 4 since auto- mation and safety require adaptive models to manage dynamic processes. In addition, cluster 5, focused on sustainable materials and chemical processes, complements the objectives of cluster 1 by providing innovative solutions to improve recyclability and manage waste such as plastic waste and carbon dioxide. Conclusions. The synergies between the clusters show that progress toward a circular model depends on integrating multiple dimensions, from policy and technology strategies to advances in materials and industrial processes 2024-12-18T00:00:00Z http://hdl.handle.net/20.500.14067/12272 Conciencia ambiental como factor de transfiguración del comportamiento sustentable del visitante de la reserva nacional de Lachay Ramos La Rosa, Patricia Elena; Rodriguez Cadillo, Ana Juliani; Grados Olivera, Maria del Rosario; Yovera Rodriguez, Pedro Javier; Ramos Y Yovera, Santiago Ernesto; Ausejo Sanchez, Jose Luis Objetivo: la investigación fue conocer y explicar la relación entre la conciencia ambiental como factor de transfiguración del comportamiento sustentable del visitante de la reserva nacional de Lachay. El tipo de investigación es aplicada, enfoque de investigación mixto y método de investigación descriptivo, mixto secuencial explicativo y diseño de investigación no experimental y transversal, alcance de la investigación correlacional, explicativo. La población estuvo compuesta por 19326 visitantes, la muestra de método cuantitativo estuvo conformada por 377 visitantes y en el método cualitativo el nivel de saturación se alcanzó en 15 entrevistas. Las técnicas aplicadas fueron; observación, análisis documental, entrevistas estructuradas y encuestas. La investigación tuvo como resultado en el análisis cuantitativo el rechazo de la hipótesis nula, se aprobó que la conciencia ambiental se vincula en la trasfiguración del comportamiento sustentable del visitante de la Reserva Nacional de Lachay, obteniéndose un coeficiente de correlación de Rho Spearman 0,584 siendo significativa y positiva moderada, además, el p valor fue de 0,000. En el análisis cualitativo, la conciencia ambiental transfigura al comportamiento sustentable a través los factores psicológicos como son: conocimiento ambiental-cognitiva, permitiendo identificar las preocupaciones ambientales y paisaje – afectiva, la interacción del factor cognitiva y afectiva permiten la generación de comportamientos y aptitudes proambientales - conativa 2025-01-16T00:00:00Z