Daniel Silva

Universidade Estadual do Oeste do Paraná | UNIOESTE · Centro de Ciências Agrárias

Micropropagation is an in vitro propagation technique, established in the nursery field sector for numerous species, which offers several advantages compared to traditional agamic propagation techniques. In the case of the olive tree, however, despite the advances made through research, it is still little used, due to the recalcitrance to in vitro...

The physical characteristics of the fruits are of great importance for the identification and selection of superior genetic materials, appropriate for commercialization or industrial use. Given the above, the objective was to physically characterize the araticum fruit and to verify the influence of accessions and fruit region under seed germination...

Hemerocallis is a floriferous species, which presents numerous genotypes that are constantly crossed, generating new cultivars. The germination and viability of pollen are influenced both by factors that are intrinsic and extrinsic to the pollen. In view of the above, the purpose of this study was to establish a growth medium for the germination of...

Olive tree is propagated vegetatively, which requires good adventitious rooting. The objective of this study was to analyze the influence of the presence of anatomical structures and of phenolic compound deposition on the rooting of stem cuttings of olive. Semihardwood cuttings from olive cultivars Maria da Fé, Santa Catalina, Ascolano 315 and Grap...

It is well known that the products of encapsulation (multifunctional beads and synthetic seeds) can be used as innovative technological tools to integrate micropropagation both for plant germplasm conservation and to simplify the management of propagation materials in nurseries. Nevertheless, the usual concept of encapsulation concerns the use of i...

The hybridization of the species belonging to the Physalis L. genus has been seldom to date, preventing the combination of distinct characteristics. Thus, assessments concerning basic reproductive biology and inter-specific compatibility of crosses are required for breeding. The present study aimed to evaluate pollen viability, stigmatic receptivit...

Given the above, the objective of this study was to evaluate the bromatological, mineral and bioactive compounds of blackberry grown in a subtropical region. Blackberries fruits (Rubus sp.), Grown in an orchard of Unioeste, Campus Marechal Cândido Rondon (Paraná, Brazil), were used. Immediately after harvest, the fruits were taken to the Food Techn...

Physalis L. é um dos gêneros mais importantes da família Solanaceae, contendo 120 espécies botanicamente identificadas. As espécies de Physalis possuem uma grande variedade genética, devido ao elevado número de espécies botanicamente identificadas, que garante características peculiares de interesse econômico. Apesar do conhecimento dessas caracter...

ABSTRACT The objective of this study was to evaluate the potential of rooting of podocarpos cuttings in function of the number of leaves, concentrations of IBA and phytorregulators, application methods and cutting season. Two experiments were carried out under weaning conditions, in a factorial scheme containing 3 replicates of 15 cuttings, the fir...

ABSTRACT The objective of this work was to evaluate asepsis protocols, composition and concentration of culture media in the in vitro establishment of three physalis species. In experiment I, seeds of 3 species were used x 3 asepsis protocols. In experiment II, 3 culture media and explants 3 species were used. In experiment III, explants of 2 speci...

The most widely used method of olive propagation is cutting, although for some cultivars the technique is still limited. The objective of this work was to evaluate the use of plant growth promoter bacteria and arbuscular mycorrhizal fungi in the rooting of olive cuttings. Two experiments were conducted from October 2017 to January 2018 with cutting...

Acerola fruit is one of the richest natural sources of ascorbic acid. As a consequence, acerola fruit and its products are in demand worldwide for the production of health supplements and for the development of functional products. Acerola phenotypes (103) were screened in Western Paraná State, in the Southern region of Brazil, and evaluated to obt...

Due to the fact that the western region of Paraná is considered subtropical, with high temperatures in the summer, the hybrids of Encyclia are commercialized by the beauty of its flowers and durability. However, there are no studies involving potted plants, substrate types and fertilizers, as well as hybrids, for the genus Encyclia. Thus, the objec...

The germination process of the Annona sylvatica A.St.-Hil becomes difficult because the seeds have physical and physiological numbness. Although, the objective was to evaluate the effect the gibberellic acid can have in overcoming this physiological process. So that, aimed to evaluate the effect of the gibberellic acid in the overcoming dormancy of...

This study evaluated two alcoholic sources in the preparation, chemical characterization, and acceptability of homemade Kei apple liqueurs. Kei apple fruits were harvested from 4-year-old plants and immediately transported to the laboratory. The liqueur prepared with vodka + fruits without the epicarp was named L1;the liqueur prepared with sugarcan...

The asexual propagation of conifers, such as Podocarpus macrophyllus (Thunb.) Sweet, faces difficulties. Among the factors that can improve the efficiency of asexual propagation are the types of cuttings used and lesions performed at the base of the cuttings, and the use of plant regulators, such as indolebutyric acid (IBA). This study determined t...

Acerola fruit is one of the richest natural sources of ascorbic acid ever known. As a consequence, acerola fruit and its products are demanded worldwide for the production of health supplements and for the development of functional products. Acerola phenotypes (103) were selected from Western Paraná State and evaluated to obtain information on frui...

The objective of this study is to evaluate the composition, nutritional aspects and sensory analysis of the dovyalis jam. Dovyalis fruits were harvested from 4-year-old plants in the orchard of the Unioeste Experimental Farm. They were collected in the morning in polyethylene boxes, when they were ripe and with a purple coloration from the epicarp,...

O presente trabalho teve como objetivo avaliar o efeito das telas de 50% de sombreamento coloridas sobre a emergência e o desenvolvimento de mudas de três espécies de fisális. O delineamento experimental foi blocos ao acaso, em esquema de parcelas subdivididas com quatro repetições. As telas utilizadas apresentaram 50% de sombreamento e quatro colo...

This study aimed to estimate plastochron, leaf area, and yield of Physalis peruviana seedlings grown in different environments and transplanted on different dates. The experiment was carried out in a completely randomized design, arranged in a 2 x 3 factorial scheme, namely: two cultivation environments (protected and field) and three transplanting...

In the western region of Paraná, the subtropical climate prevails, with little accumulation of hours of cold in the winter, making the fruit species not go into complete dormancy. Given the above, the objective of this study was to evaluate the effect of chemical defoliant on blackberry varieties, aiming at their complete defoliation and induction...

The objective of this work was to verify the fixation and development in the field and later production of Physalis seedlings species produced in different levels of shading. The treatments were composed by Physalis seedlings formed in different environment with shading and four species. The conduction system adopted was “V”. The seedlings survival...

The purpose of this study was to evaluate the agronomic behavior of the Niagara Rosada variety cultivated under plastic cover, using defoliation intensities, and its influence on the Plasmopara viticola. The experiment was conducted in Francisco Beltrão, PR, Brazil, in a vineyard of Niagara Rosada variety in a trellised system during the 2016/2017...

The cambucizeiro (Campomanesia phaea), belonging to the Myrtaceae family, is a native plant of the Brazilian Atlantic Forest. The description of the characteristics of the cambucizeiro fruits is important to support new genetic improvement works and its commercial exploitation, especially regarding the processing of the fruit. The present work aime...

The purpose of this study was to evaluate the phenological behavior and agronomic potential of blackberry varieties and hybrids in a subtropical region. Blackberry seedlings of four varieties and two hybrids were purchased in April 2015 in the form of stem cuttings and transplanting in July 2015. Winter pruning was carried out on August 18, 2016 an...

Olive (Olea europaea L.) is one of the species more representative of Mediterranean basin where it is strictly connected to the history and culture of the local populations. In the last 20 years, the olive tree diffusion has increased out of traditional growing area, due to the appreciated value of olive oil and its properties. So, a greater amount...

As plantas são diretamente afetadas por fatores ambientais tais como, estresse hídrico, temperatura, radiação, dentre outros. Estes fatores afetam não só os órgãos vegetativos, mas também estruturas reprodutivas, podendo acarretar danos à plantas agronomicamente exploradas. Physalis peruviana L. é uma espécie de interesse comercial pertencente à fa...

The main propagation mode of dovyalis is by seeds, what makes important to determine the ideal moment of fruit harvest. This study aimed to evaluate the physiological seed quality and harvest time of dovyalis fruits. To determine the fruit physical attributes, they were visually classified into five classes, according to the maturity stages, based...

The commercial propagation of rose bushes is carried out asexually by the cutting method. The genetic material and the substrate are factors that interfere in the rhizogenic process of the cuttings. Thus, the aim of this work was to evaluate the effect of the substrate on the rooting of cuttings of two hybrid rose bushes. Floriferous branches of ma...

Nowadays the semihardwood cuttings of olive is the most used method to produce seedlings of this specie; however, it is necessary to improve the efficiency of this method to enable the intensive exploitation of this fruit crop and reduce the seedling production costs. Thus, two experiments were conducted concurrently in sand bed, under a canvased s...

The objective of this study was to evaluate the growth of Physalis peruviana and Physalis pubescens in containers and substrates, as well as the growth of transplanted P. pubescens seedlings into different containers and substrates. It was used for transplanting experiment (E1) plastic bags, disposable plastic glasses and plastic tubes containing f...

A utilização de substratos e ambientes é importante fator a ser analisado na determinação da qualidade de germinação e crescimento de mudas de espécies de fisális. Diante do exposto, objetivou-se com o presente trabalho, avaliar a germinação e o crescimento inicial de duas espécies não convencionais de fisális, submetidas a diferentes ambientes e s...

The genus Physalis L. has great importance in the framework of Brazilian biodiversity especially in the Amazon region. The use of colored shading nets allow manipulating the light spectrum, and thus supplying the appropriate quantity and quality of light for each species and maximizing production. The purpose of this study was to evaluate the effec...

Shoots of the olive cultivar Moraiolo were previously cultured in aseptic conditions on Olive Medium (OM), with the addition of 4 mg•L⁻¹ of zeatin, 30 g•L⁻¹ of sucrose, and 7 g•L⁻¹ of agar. Then, 1-cm long uninodal explants with two leaves and two axillary buds were excised from the proliferated masses and placed on the same proliferation medium en...

The framboseira-negra has a potential for cultivation in Brazil, due to the fact that this fruit produces high quantities of fruits, which confer a high quality jelly. However, their propagation is an obstacle to the establishment of commercial plantations. Production and expansion of a fruit is directly linked to the propagation method and the qua...

The objective of this work was to evaluate the bioactive compounds, antioxidant activity, and physicochemical characteristics of dovyalis fruit to obtain technological knowledge about this fruit when grown under the conditions found in the municipality of Marechal Cândido Rondon, Paraná State, Brazil. Dovyalis fruits from the State University of We...

The objective of this work was to evaluate the bioactive compounds, antioxidant activity, and physicochemical characteristics of dovyalis fruit to obtain technological knowledge about this fruit when grown under the conditions found in the municipality of Marechal Cândido Rondon, Paraná State, Brazil. Dovyalis fruits from the State University of We...

Il lavoro è inerente la possibilità di incrementare le conoscenze in merito alla rizogenesi in vitro, per ottenere in laboratorio plantule fornite di un apparato radicale già funzionale e tale da ridurre i tempi di acclimatazione e l’entità delle fallanze, che notoriamente incidono molto sul costo finale. Si ritiene, infatti, che la semplificazione...

Girdling consists of elimination of a small part of the cortex around a pre-selected branch, this technique being successfully applied in fruit trees. The aim of this study was to assess the effect of girdling period and types on branches of olive cultivars on their vegetative development and fructification. The study was conducted at the Epamig Ex...

The sensory analysis of olive oil constitutes a fundamental tool in determining the commercial grade of oil. To obtain this certification, the oil must pass through the analysis of a group with 8 to 12 people, trained and qualified by regulatory bodies, called ‘panel test’, which will feature the organoleptic properties of the oil, setting its comm...

Fifty-eight cambuci fruit accessions were collected and propagated by seeds. Forty fruits of each accession were collected and evaluated for longitudinal and transverse diameter, fruit weight, number of seeds, seeds weight, total soluble solids, % citric acid, ratio, pH, firmness, vitamin C, and color. The phenotypic correlation between the charact...

Plant cutting is a widely used propagation method for olive trees. Its viability depends on the capacity for the adventitious root formation of each species. Nevertheless, it is necessary to study the different characteristics of this process. The purpose of this study was to evaluate the influence of substrates on the rooting of semi hardwood stem...

The aim of this study was to develop a culture medium for the evaluation of pollen viability and to determine the number of pollen grains per anther and per flower in species of Physalis. The study was developed sequentially, where pollen grains of Physalis (P. angulata, P. ixocarpa, P. minima, P. peruviana and P. pubescens) underwent germination i...

Faced with the need for greater knowledge of the different physalis species, the aim of this study was to characterize different Native American physalis species (Physalis peruviana L., Physalis pubescens L., Physalis angulata L., Physalis mínimos L. and Physalis ixocarpa Brot) as to their physicochemical characteristics, bioactive compounds and an...

The objective of this study was to evaluate the asexual propagation of Dovyalis, through the use of substrates and cuttings. Three experiments were conducted in Marechal Cândido Rondon, Paraná State, Brazil, and the first experiment consisted of three removal positions of the cuttings (apical, middle and basal) x 4 Indole butyric acid (IBA) concent...

Injuries in the internal structures of the seeds limit their viability and can reduce their vigor, producing weak seedlings susceptible to adverse conditions. Thus, the determination of the quality of seeds of Physalis peruviana L. by X-ray test is valid, in order to reduce the time separation of seeds and a good initial establishment of the cultur...

ABSTRACT The aim of this study was to analyze the effect of colored-shade nets on the physicochemical characteristics of physalis in subtropical area. The experimental design was the randomized blocks with a 4 × 5 factorial, being four species of physalis (Physalis peruviana, P. pubescens, P. minima and P. ixocarpa) and four net colors (white, blue...

The waste obtained from olive oil extraction process are by products generated in different ways and composition, according to the used extraction equipment, the olive variety and the fruit maturity. In the olives pressing traditional process, using continuous three-phase process, the waste produced comprise the liquid portion (vegetation water) +...

To support breeding programs of pear tree, on the selection of cultivars to subtropical area in Brazil, the objective of this research was to adjust the growth medium basic to pollen grain germination. The pollen grains of 'D'Água' cultivar were spread on the surface of Petri dishes containing 20 ml of culture medium in accordance with the followin...

The objective of this study was to evaluate the production of seedlings of Physalis L. species under different-colored shade nets. Four shade nets individually stained white, blue, red and black, all with 50% shading, were used in this study, and an additional treatment (control) was used in which seedlings were grown in full sun. The study examine...

O objetivo do trabalho foi estabelecer meio de cultura e avaliar a germinação de grãos de pólen in vitro e após a aplicação de boro na panícula em cultivares de nespereira. Foi determinado o meio de cultura ideal para germinação dos grãos de pólen e avaliada a porcentagem de germinação utilizando pólen da cultivar Mizauto. Também avaliou-se o melho...

O cambucizeiro (Campomanesia phaea), pertencente à família Myrtaceae, é uma planta nativa da Mata Atlântica brasileira. A descrição das características dos frutos de cambucizeiro é importante para subsidiar novos trabalhos de melhoramento genético e sua exploração comercial, principalmente no que tange ao processamento dos frutos. O presente trabal...

O Physalis sp., popularmente conhecido como fisális, é um gênero com mais de 100 espécies, pertencente à família Solanaceae, caracterizado pelo cálice concrescido, que envolve e protege o fruto contra herbívoros e intempéries. Os frutos, de sabor agridoce, são muito utilizados na culinária, podendo também ser processados em geleias, doces e licores...