Walter Apaza-Tapia- Doctor of Philosophy
- Professor at National Agrarian University La Molina
Walter Apaza-Tapia
- Doctor of Philosophy
- Professor at National Agrarian University La Molina
About
21
Publications
5,815
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
115
Citations
Introduction
Skills and Expertise
Current institution
Publications
Publications (21)
problemas fisiológicos que afectan la calidad del mango a la cosecha y postcosecha en el valle de Yaután, provincia de Casma, departamento de Áncash. Durante la campaña 2021-2022, se visitaron predios con cultivos de mango para observar problemas sanitarios, posteriormente a la cosecha se colectaron frutos de los sectores: Valdivia, Señor de los Mi...
Botrytis cinerea is a necrotrophic cosmopolitan fungus that causes gray mold. Itcan be found in nature as a saprophage and affects different plant species. Peru is thelargest supplier of blueberries in the world, and one of the problems during blueberries cultivation is caused by B. cinerea. The pathogen causes plant, flower, andfruit rotting. The...
Avocado root rot caused by Phytophthora cinnamomi is one of the main problems affecting avocado (Persea americana) cultivation in Peru, especially at the Chavimochic Irrigation Project. The objective of this study was to evaluate the effect of different Trichoderma strains on the control of Phytophthora cinnamomi in Zutano rootstock under greenhous...
Stem-end rot (SER) of avocado is caused by several fungal species, and it is presented worldwide. This plant disease currently affects several avocado producer regions in Peru, causing fruit rot, impacting the industry negatively. Research about SER distribution in the canopy of avocado trees is limited. Thus, the present study aimed to compare whi...
The flowers blight caused by Botrytis cinerea Pers. is among the most important citrus diseases, especially in cultivars whose flowering coincides with the humid seasons of the year. As a result of the pathogenic features of this fungus and the complex nature of its control, it is necessary to establish a correct plan for the usage of highly effici...
Las orquídeas son una de las flores más importantes que se cultivan en Sri Lanka para la exportación y el mercado local. Uno de los principales obstáculos para la expansión del cultivo de orquídeas es el limitado suministro de materiales de plantación de calidad. Las técnicas de micropropagación pueden aplicarse con éxito para la propagación masiva...
The flowers blight caused by Botrytis cinerea Pers. is among the most important citrus diseases, especially in cultivars whose flowering coincides with the humid seasons of the year. As a result of the pathogenic features of this fungus and the complex nature of its control, it is necessary to establish a correct plan for the usage of highly effici...
The Chavimochic irrigation project is one of the leading projects in Peru. In this project, irrigation water is derived from the Santa river to irrigate the valleys of Chao, Viru, and Moche, including desert zones between valleys. In this study, we aimed to characterise the Hass avocado and asparagus farms in desert areas of the Chavimochic irrigat...
Asparagus is one of the most important export crops for Peru. In the two main production zones: Ica and Libertad, asparagus fields produce over 12 years before yield declining is observed. The interaction between Fusarium oxysporum f.sp. asparagi (FOA) and Meloidogyne incognita (MI) is the most limiting factor for replanting asparagus fields in Per...
La producción de Arándanos en Perú ha tenido un rápido crecimiento en los últimos cinco años, pasando de no tener una superficie de más de 3050 hectáreas en la actualidad. Como resultado de este aumento, han aparecido muchos problemas patológicos de las plantas, entre ellos Phytophthora sp. provocando plantas con síntomas de marchitez, rojizo de ho...
Esta investigación tuvo como objetivo la identificación del agente causal del mildiú de la albahaca y la validación de un método de estimación de la severidad. El patógeno presenta morfométricamente zoosporangióforos monopodiales y ramificados dicotómicamente en ángulo agudo hasta 4,25 veces en la parte terminal, un largo de 320,1 µm; esterigmas co...
Gray mold, caused by Botrytis cinerea, is one of the most important plant diseases in Strawberry in Peru. Because of its high variability and its pathogenic characteristics, proper fungicides use is essential to control this disease. The aim of this study was to evaluate the effect of five chemical fungicides: Tryfloxistrobin (0.0625%), Pyrimethani...
Se evaluó la resistencia de cuatro patrones de Persea americana (porta injerto), dos variedades: ´Nabal´ y ´Zutano´; y dos razas: “Antillano” y “Mexicano” (material criollo) a la “pudrición radicular” causada por Phytophthora cinnamomi. El trabajó se realizó bajo condiciones de invernadero (UNALM) y se empleó el método de infección directa al suelo...
Phytophthora capsici is a soilborne pathogen that causes significant losses to pepper production in Peru. Our objective was to investigate the mechanisms by which P. capsici is able to survive and spread. During 2005 to 2007, 227 isolates of P. capsici were collected from four species of pepper (Capsicum annum, C. baccatum, C. chinense, and C. pube...
During 2006, spears, roots, and crowns of asparagus (Asparagus officinalis) exhibiting brown necrotic lesions with water soaking were collected from several sites across Peru (Ica, Lima, and Trujillo). Small infected tissue sections were washed thoroughly with tap and sterile distilled water and transferred to corn meal agar plates (CMA) amended wi...
