Anderson Santin

Crescimento, produção e qualidade de frutos de pimenta ( Capsicum annuum) em diferentes espaçamentos

Planting density and cultivars suitable to climatic conditions of southwestern Parana State are of great importance in crop production and fruit quality of pepper. The objective of this study was to evaluate growth, production and fruit quality of pepper cultivars in different spacing and harvest seasons carried out in field in the southwestern Parana. The experiments were carried out in the experimental area of the Universidade Tecnologica Federal do Parana, Campus Dois Vizinhos, from September 2009 to July 2012. The experimental design was randomized blocks with four replications in a 2x3 factorial design, comprising two pepper varieties (BRS Mari and Paprika) and three planting densities: 1.50x1.00 m, 1.00x1.25 m, 1.50x1.25 m between rows and between plants, respectively. The number, fresh mass and production of fruits, length, fruit diameter, leaf area index, soluble solids, capsaicin and dihydrocapsaicin content in fresh fruits Were analyzed. BRS Mari resulted in greater number of fruits (199.33), production per area (5.87 t/ha), fresh fruit production (768.67 g/plant) and capsaicin (549.92 mg/kg) and dihydrocapsaicin (251.93 mg/kg) content. The spacing of 1.00x1.25 m resulted in higher yield per area (22.88 t/ha), capsaicin (362.25 mg/kg) and dihydrocapsaicin (165.02 mg/kg) content. Density can be a strategy for productivity of pepper cultivars evaluated.

Produção e aceitabilidade de cenoura sob cultivo orgânico no inverno e no verão

For the carrot cultivation it is important to understand the adaptation of cultivars according to the local weather conditions and consumer preference. The objective was to evaluate the performance and acceptance, thereby detecting the consumers preference for different carrot cultivars in organic cropping system. The performance of the cultivars Nantes, Shin Kuroda and Danvers Flaker was evaluated in the winter season and cultivars Shin Kuroda, Kuronan, Brasilia, Esplanada and Carandai for cultivation of summer in Dois Vizinhos, Parana state, Brazil. The experimental design was randomized blocks with five replications and four treatments for the winter season and five treatments for the summer season. We analyzed the resistance to leaf blight (Alternaria dauci), incidence of green shoulder, total soluble solids, yield and acceptability through sensory analysis of fresh carrots and canned pickles type. On the winter crop, cultivar Nantes resulted in higher yield (29.02 t ha-1) and on the summer crop cultivar Esplanada productivity was higher (32.0 t ha-1) without statistical difference. The cv. Esplanada was more resistant to leaf blight and presented the lowest percentage (5.6%) of green shoulder. For sensory analysis, the cvs presented good acceptability from the participating consumers.

Teores de clorofila nas plantas e produtividade de frutos de morangueiros cultivados sobre mulching

This study aimed to evaluate productive characteristics and levels of photosynthetic pigments in two strawberry cultivars on different types of mulching, in an open cultivation system. The experiment was a 2 x 4 factorial completely randomized block design, with 2 varieties (Camarosa and Camino Real) and 4 ground covers (black low-density polyethylene, silver low-density polyethylene, non-woven and no mulching), with three replications. The cultivars were analyzed for chlorophyll a and b content, total chlorophyll, and chlorophyll a/b ratio, number of fruits per plant, yield (ton ha-1), weight fruit mass, soluble solids (oBrix), total acidity, pH and soluble solids/total acidity ratio. The Camarosa showed higher yield than cv. Camino Real. The silver low-density polyethylene and non-woven mulching treatment exhibited negative results, and are not recommended for the cultivation of Camarosa and Camino Real strawberries. The black low-density polyethylene mulching was the most recommended for growing such cultivars. Among the types of mulchings evaluated, the black low-density polyethylene achieved the best results and it is recommended for the Camarosa and Camino Real strawberry cultivars.

Desenvolvimento inicial de espécies de fisális submetidas a ambientes de cultivo

The environment can be a limiting factor for development of Physalis species seedlings. Thus, the aim of this present study was to evaluate the initial development of Physalis species when subjected to cultivation environments. The experimental design was a randomized block design, factorial 3 x 3 (three Physalis species being Physalis peruviana, P. angulata and P. pubescens x three environments, greenhouse - GRE, plastic cover with 150 micron; shading - PLS, with 75% permeability and light - SHD, full sun, in a fully open - FOP), with four repetitions, conducted between February and May/2012, at the Station of Horticulture and Biological Control “Mario Cesar Lopes”, University of Parana State, Brazil. During the experiment, the emergence speed rate of seedlings was monitored in the initial 30 days. At 76 days after the sowing, leaf area, dry biomass of leaves, stems and roots, as well as the number leaves, plant height and stem diameter were evaluated. The SHD environment provides higher percentage of emergence of Physalis species seedlings studied. GRE and SHD environments were similar to the early Physalis development and can be used in the production of these species seedlings. Is not advisable in the initial development of Physalis seedlings.

Controle da ferrugem e da broca-dos-ramos da figueira com diferentes fungicidas e inseticidas

High temperature and rainfall stimulate the attack of rust (Cerotelium fici(Cast.)) and fig tree borer (Azochis gripusalis(Walker, 1859) (Lepidoptera: Pyralidae)), limiting the commercial production of figs. The objective of this work was to compare the efficiency of alternative fungicides and insecticides with conventional products widely used in agriculture for controlling these pests. Two experiments were carried out in a completely randomized block design with four replications in the UniversidadeTecnologica Federal do Parana (Federal Technological University of Parana), DoisVizinhos, Parana State, Brazil. For the rust control, azoxystrobin (10g), bordeaux mixture (1,500 g limestone + 1,500 g copper sulphate) was used in 100 L of water and control (water). For the fig tree borer control, azadirachtin (1,000g mL p.c.), garlic (Allium sativum L.; 100 mL p.c.), ashes (20,000g), nicotine (10,000mL of the preparation), deltamethrin (50mL p.c.), Bacillus thuringiensis Bertiner (100 mL p.c.), rotenone (1,000mL p.c.), coconut soap (1,000g) were used in 100 L of water and water (control). The Bordeaux mixture was the most effective treatment in controlling rust, increasing the productivity and fruit quality. Deltamethrin provided the best controlling for borer branches of the fig tree. Among the evaluated alternative products, garlic was the most effective in controlling such pest.