Quinoa crop (Chenopodim quinoa Willd.) is native to the Peruvian Andes, nutritious food and it has become very important for agroexport. In Piura, the downy mildew disease appeared causing economic losses, were set as objectives: detect the primary inoculum, describe the symptoms and evaluate the effect of defense inductors in the control of downy mildew. The direct detection methodology was used to observe oospores, the treatments were; Biosar, 3Tac, Agromos + Soil set, Action FP/Pare, Metalosate and control, Area Under the Disease Progress Curve (ABCPE) was evaluated, comparisons of means were made of the Tukey test (α = 0.05). Oospores were detected in all the quinoa samples, being with greater number the var. INIA-altiplano with 96 and with lower var. passankalla with 8 oospores/100 units of seed. As a symptom, yellowish spots were observed on the upper side and gray sporulation on ...

Pea (Pisum sativum L.) is an economically important crop and of great demand in the national and international market, due to the considerable number of families that depend on its cultivation, especially in the northern and central highlands of Peru. However, the anthracnose is one of the limiting factors for low productive and causes economic losses. The aim of this study was to describe the symptoms, culturally and morphometrically identify the causal agent and to evaluate under in vitro the efficacy of fungicides. Isolation was made from samples of leaves and pods with anthracnose symptoms collected in the crop field. Healthy pea was used in the pathogenicity test, and discs of PDA medium containing isolated fungi were inoculated into them. The poisoned food technique was used, and colony growths were measured to evaluate the effects of fungicides. The results based on the symptoms, ...

Quinoa crop (Chenopodim quinoa Willd.) is native to the Peruvian Andes, nutritious food and it has become very important for agroexport. In Piura, the downy mildew disease appeared causing economic losses, were set as objectives: detect the primary inoculum, describe the symptoms and evaluate the effect of defense inductors in the control of downy mildew. The direct detection methodology was used to observe oospores, the treatments were; Biosar, 3Tac, Agromos + Soil set, Action FP/Pare, Metalosate and control, Area Under the Disease Progress Curve (ABCPE) was evaluated, comparisons of means were made of the Tukey test (α = 0.05). Oospores were detected in all the quinoa samples, being with greater number the var. INIA-altiplano with 96 and with lower var. passankalla with 8 oospores/100 units of seed. As a symptom, yellowish spots were observed on the upper side and gray sporulation on ...

Pea (Pisum sativum L.) is an economically important crop and of great demand in the national and international market, due to the considerable number of families that depend on its cultivation, especially in the northern and central highlands of Peru. However, the anthracnose is one of the limiting factors for low productive and causes economic losses. The aim of this study was to describe the symptoms, culturally and morphometrically identify the causal agent and to evaluate under in vitro the efficacy of fungicides. Isolation was made from samples of leaves and pods with anthracnose symptoms collected in the crop field. Healthy pea was used in the pathogenicity test, and discs of PDA medium containing isolated fungi were inoculated into them. The poisoned food technique was used, and colony growths were measured to evaluate the effects of fungicides. The results based on the symptoms, ...

El objetivo principal de esta monografía es la estimación de los caudales máximos de avenida para diferentes periodos de retornos en la cuenca del río Chillón de interés a través de modelos probabilísticos.