ABSTRACT The purpose this study was to evaluate the vegetative development, yield and quality of strawberry cultivars of short and neutral days as a function of soil cover. Two experiments were carried out in a protected environment. The experimental design used in both experiments consisted of randomized blocks, with subdivided plots. Harvests were carried out every two days, when the berries presented 75% of the red coloration of the epidermis, with evaluation of yield, number of fruits/plant, and fresh biomass of the fruits. For fruit quality, the pH, SS, titratable acidity, SS/TA ratio and fruit staining were evaluated. The contents of chlorophyll a and b, chlorophyll a + b and the chlorophyll a/b ratio in the leaves were also measured. At the end of the productive cycle, destructive evaluations of leaf number, leaf area and dry biomass of shoot were carried out. Cultivation on white plastic soil coverage presented plants with lower vegetative development, higher yield, and fruit size. Among the cultivars of short days, Camino Real presented bigger and more attractive fruits regarding the appearance of color of epidermis. For neutral day cultivars, Aromas obtained higher yield.

Temperaturas e precipitações elevadas favorecem a incidência da ferrugem (Cerotelium fici(Cast.)) e da broca-dos-ramos (Azochis gripusalis (Walker, 1859) (Lepidoptera: Pyralidae)), limitando a produção comercial de figos. O objetivo deste trabalho foi comparar a eficiência de fungicidas e inseticidas alternativos em relação à de produtos convencionais registrados para a cultura. Foram realizados dois experimentos, no delineamento de blocos inteiramente casualizados, com quatro repetições, no setor de fruticultura da Universidade Tecnológica Federal do Paraná, Campus Dois Vizinhos. Para controle da ferrugem, foram utilizados, em 100 L de água, azoxistrobin (10 g), calda bordalesa (1.500 g de cal virgem + 1.500 g de sulfato de cobre) e testemunha (água). No controle da broca-dos-ramos utilizaram-se, em 100 L de água, azadiractina (1.000 mL P.C.), alho (Allium sativum L.) (100 mL P.C.), cinza (20.000 g), extrato de fumo (nicotina) (10.000 mL do preparado), deltametrina (50 mL P.C.), Bacillus thuringiensis Berliner (100 g P.C.), rotenona (1.000 mL P.C.), sabão de coco (1.000 g) e testemunha (água). A calda bordalesa foi o tratamento mais efetivo no controle da ferrugem, promovendo aumento da produtividade e da qualidade dos frutos. A deltametrina promoveu o melhor controle da broca-dos-ramos da figueira. Entre os produtos alternativos testados, o alho foi o mais efetivo no controle dessa praga.

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 UniversidadeTecnológica Federal do Paraná (Federal Technological University of Paraná), DoisVizinhos, Paraná 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.

O bom calibre e a coloração adequada dos frutos cítricos para consumo in natura são importantes fatores de qualidade que elevam o seu consumo e melhoram os preços do produto. Este trabalho teve como objetivo avaliar o efeito de diferentes intensidades de raleio manual dos frutos e da poda sobre a produção e qualidade dos frutos da tangerina Montenegrina. O experimento foi realizado em pomar comercial no município de Dois Vizinhos, no Sudoeste do Paraná. O experimento bifatorial (raleio x poda) constituiu-se dos seguintes tratamentos. 1) sem raleio e sem poda (testemunha); 2) sem raleio, com poda; 3) 33% de raleio, sem poda; 4) 33% de raleio, com poda; 5) 66% de raleio, sem poda; e 6) 66% de raleio, com poda. O delineamento experimental foi de blocos completamente casualizados, com quatro repetições, sendo cada unidade experimental constituída por uma planta. Nas condições em que o experimento foi realizado, concluiu-se que o raleio nas intensidades de 33 e 66% promove aumento da massa fresca, melhora a cor da epiderme, aumenta o diâmetro e melhora a classificação comercial dos frutos da tangerina Montenegrina. A poda leve, de abertura e levantamento da base da copa, não contribui para a melhoria da qualidade dos frutos.

The good size and adequate color of fresh citrus are important factors of quality that increase their consumption and improve the prices received by farmers. This work aimed to study the effect of different intensities of thinning and pruning of fruit on production and fruit quality of mandarin 'Montenegrina'. The experiment was conducted in a commercial orchard in the city of Dois Vizinhos, in Southwestern Paraná, Brazil. The factorial experiment consisted of the following treatments. 1) Without thinning and without pruning (control), 2) Without thinning, with pruning; 3) 33 % thinning, without pruning; 4) 33 % thinning, with pruning; 5) 66,% thinning, without pruning; 6) 66 % thinning, with pruning. The experimental design was completely randomized block with four replications and each experimental unit consists of one plant. Under conditions in which the experiment was conducted, it appears that the thinning intensities of 33 % and 66 % promote an increase in the fresh weight, improve the skin color, increase the diameter and improve the commercial classification of fruis of 'Montenegrina' mandarin. Light pruning does not contribute to improving the quality of the fruits.