Examinando por Autor "Gonza Cusipuma, Víctor Antonio"

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Guia práctica : plagas y enfermedades del cultivo de kiwicha (Amaranthus caudatus)
(Instituto Nacional de Innovación Agraria - INIA, 2009) Estrada Zúniga, Rigoberto; Gonza Cusipuma, Víctor Antonio; Gutiérrez Galdós, Juan Luis
El documento es una guía práctica con el fin de que los productores de las zonas del Perú y especialmente los de la región Cusco y Apurímac puedan identificar y prevenir los daños que ocasionan las principales plagas y enfermedades en el cultivo de kiwicha.
Manejo integrado del cultivo de quinua en el Cusco
(Instituto Nacional de Innovación Agraria - INIA, 2018-10) Estrada Zúniga, Rigoberto; Gonza Cusipuma, Víctor Antonio; Anccasi Casquina, Huber; Gallegos Lecca, Ana María
Con el objetivo de mejorar la calidad y la producción para su uso en la alimentación familiar , el INIA a través del proyecto 013-PTT "Diseño de metodologías de capacitación participativa con productores de quinua en el departamento de Cusco" ejecutado en el ámbito de la estación experimental Agraria Andenes, pone a disposición de los productores el presente documento que sirva de guía en el manejo del cultivo de Quinua para incrementar la producción.
Multi-environment multi-QTL association mapping identifies disease resistance QTL in barley germplasm from Latin America
(Springer Nature, 2014-12-30) Gutiérrez, Lucia; Germán, Silvia; Pereyra, Silvia; Hayes, Patrick M.; Pérez, Carlos A.; Capettini, Flavio; Locatelli, Andres; Berberian, Natalia M.; Falconi, Esteban E.; Estrada Zúniga, Rigoberto; Fros, Dario; Gonza Cusipuma, Víctor Antonio; Altamirano Vasquez, Hernan; Huerta Espino, Julio; Neyra Valdez, Edgar; Orjeda, Gisella; Sandoval Islas, Sergio; Singh, Ravi; Turkington, Kelly; Castro, Ariel J.
Diseases represent a major constraint for barley (Hordeum vulgare L.) production in Latin America. Spot blotch (caused by Cochliobolus sativus), stripe rust (caused by Puccinia striiformis f.sp. hordei) and leaf rust (caused by Puccinia hordei) are three of the most important diseases that affect the crop in the region. Since fungicide application is not an economically or environmentally sound solution, the development of durably resistant varieties is a priority for breeding programs. Therefore, new resistance sources are needed. The objective of this work was to detect genomic regions associated with field level plant resistance to spot blotch, stripe rust, and leaf rust in Latin American germplasm. Disease severities measured in multi-environment trials across the Americas and 1,096 SNPs in a population of 360 genotypes were used to identify genomic regions associated with disease resistance. Optimized experimental design and spatial modeling were used in each trial to estimate genotypic means. Genome-Wide Association Mapping (GWAS) in each environment was used to detect Quantitative Trait Loci (QTL). All significant environment-specific QTL were subsequently included in a multi-environment-multi-QTL (MEMQ) model. Geographical origin and inflorescence type were the main determinants of population structure. Spot blotch severity was low to intermediate while leaf and stripe rust severity was high in all environments. Mega-environments were defined by locations for spot blotch and leaf rust. Significant marker-trait associations for spot blotch (9 QTL), leaf (6 QTL) and stripe rust (7 QTL) and both global and environment-specific QTL were detected that will be useful for future breeding efforts.
Participatory breeding in the Peruvian highlands: Opportunities and challenges for promoting conservation and sustainable use of underutilized crops
(Cambrigde University, 2014-05-13) Galluzi, Gea; Estrada Zúniga, Rigoberto; Apaza Mamani, Vidal; Gamarra, Mirihan; Altamirano Pérez, Ana María; Cáceres Sanizo, Gladys; Gonza Cusipuma, Víctor Antonio; Sevilla Panizo, Ricardo; López Noriega, Isabel; Jäger, Matthias
Underutilized crops tend to harbor high levels of genetic diversity, be maintained on-farm in small-scale farming systems and be relatively neglected by formal research and development strategies, including breeding programs. While high genetic variability allows these crops to adapt to marginal environments, inappropriate management practices and reductions in population sizes in individual farmers’ plots may lead to productivity loss and poor harvests. This situation further limits their cultivation and use, notwithstanding the potential these crops may hold for diversification of agricultural systems, food security and market development. Peru hosts a wealth of native agrobiodiversity, which includes many underutilized crops. To improve their performance and promote their continued conservation and use, a participatory breeding program was developed on five underutilized crops of the Peruvian highlands; the breeding approach, based on a combination of evolutionary and participatory methods, is designed to achieve a balance between yield improvement and maintenance of genetic diversity. Preliminary results in quinoa and amaranth are encouraging, fostering further engagement of farmers by increasing availability of quality seed for downstream uses. However, methodological, financial and institutional issues need to be addressed for the effort to be expanded and upscaled. This paper provides an overall description of the initiative as well as a discussion on early results obtained in quinoa and amaranth, highlighting those aspects that make this approach particularly relevant for minor crops and identifying the opportunities and challenges for the initiative to move forward.
Protocolos para la generación de variedades, mantenimiento e incremento de semilla de trigo y cebada
(Instituto Nacional de Innovación Agraria, 2020-07) Estrada Zúniga, Rigoberto; Gutiérrez Galdós, Juan Luis; Gonza Cusipuma, Víctor Antonio
El documento técnico ha sido generado producto de la ejecución del proyecto 216_PI “Implementación de la base genética y procesos de desarrollo tecnológico orientada a la generación de variedades del programa de mejoramiento genético del cultivo de trigo del INIA”, financiado por el Programa Nacional de Innovación Agraria (PNIA) en la Estación Experimental Agraria Andenes - Cusco. Presenta un contenido en temas importantes para la investigación en cereales, además de mostrar el proceso de validación, planificación y ejecución de ensayos para el desarrollo de tecnologías en trigo y cebada, con detalles en los diseños experimentales, dimensiones de parcelas, características cualitativas y cuantitativas; y por último plantea las consideraciones necesarias para el mantenimiento y multiplicación de semilla genética de trigo y cebada.