Silvia Nietsche

Silvia Nietsche
Federal University of Minas Gerais | UFMG · Instituto de Ciências Agrárias (ICA)

PhD

About

211
Publications
44,658
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Introduction
Silvia Nietsche currently works at the Instituto de Ciências Agrárias (ICA) , Federal University of Minas Gerais. Silvia does research in Agricultural Plant Science and Agronomy. Their current project is ' Microbiolization of banana plantlets and use of microscopy techniques and molecular biology for confirmation of endophytic bacteria in vivo and in vitro systems'. Also she works with fruit and ornamental plant breeding.
Additional affiliations
February 2017 - present
Federal University of Minas Gerais
Position
  • Professor (Full)
Description
  • Tropical Fruit Breeding, Ornamental Breeding and Plant Growth Promoting Bacteria
February 2017 - present
Federal University of Minas Gerais
Position
  • Professor (Full)
Description
  • Cell and Molecular Biology, Plant Breeding
February 2011 - February 2012
University of Florida
Position
  • Researcher
Education
August 1997 - March 2000
Universidade Federal de Viçosa (UFV)
Field of study
  • Plant Breedind and Molecular Biology
March 1995 - August 1997
Universidade Federal de Viçosa (UFV)
Field of study
  • Plant Breeding and molecular biology
March 1990 - December 1994

Publications

Publications (211)
Article
There are limited number of studies on the genetic improvement of sugar apple (Annona squamosa L.), in addition to this there are few studies available on the in situ and ex situ characterization and conservation of its germplasm, this has restricted the advancement of the cultivation of its fruit in Brazil. The present study aims to estimate the g...
Article
Adenium obesum (Forssk.) Roem. & Schult. is an important plant for the foriculture sector. Detailed information on foral structures is scarce and important for breeding programs, especially considering the great phenotypic variability. The objective of this study was to describe the foral events, morphology and anatomy of three A. obesum (Forssk.)...
Article
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Passion fruit (Passiflora edulis) has aroused interest from producers, leading to an intense demand for technical information, especially for obtaining quality seedlings. The objective of this study was to evaluate passion fruit seedlings according to age and morphological characteristics. The experiment was carried out at the seedling nursery of t...
Article
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Adenium obesum (Forssk.) Roem. & Schult., popularly known as desert rose, has become a valuable ornamental plant. In floriculture, the production of hybrids is prioritized. Hence, knowledge on floral biology and sexual reproduction of the target species is fundamental. The objectives of this study were: (1) to test sucrose concentrations and temper...
Book
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“Cultivo e Manejo da Rosa-do-Deserto” é uma obra produzida por professores, pesquisadores e profissionais de diversas instituições públicas e privadas que atuam em estudos com plantas ornamentais e floricultura. A reunião destes profissionais ocorreu em função do grande potencial da espécie, bem como em virtude da escassa disponibilidade de materia...
Article
Full-text available
The inheritance of the seedless fruit characteristic of Annona squamosa has not yet been explained. Molecular techniques may aid breeding programs, mainly in the assisted selection of the target gene. The INO gene may be related to seed development in these fruits. The objective of the present paper was to investigate the inheritance of seedlessnes...
Article
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The objective of this work was to evaluate the fruit quality of Tahiti acid lime and Sicilian lemon trees grown on different rootstocks and planting spacings in the semi-arid region of the state of Minas Gerais, Brazil. Two experiments were conducted, using Tahiti acid lime tree scions (Citrus latifolia Tanaka) (1) and Sicilian lemon trees scions [...
Article
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Increased planting density, different types of thinning management, and the use of beneficial microorganisms have been adopted as strategic tools in the effort to increase crop yields in a sustainable manner. This investigation evaluated the growth and production of 'Prata Anã Gorutuba' banana (Musa spp., AAB) under different plant densities during...
Poster
Full-text available
Seleção em famílias de meios-irmãos de Annona squamosa assistida por caracteres agronômicos
Chapter
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O capítulo trata dos principais aspectos que envolvem o cultivo e manejo das três espécias pertencentes a família Anonaceae (botãnica, cultivares, plantio, poda, adubação, controle de pragas e doenças etc.)
Article
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The exogenous application of GA3 to atemoya tree flowers induces parthenocarpy, and in association with artificial pollination, it increases the fruit size. Morphological, anatomical, ultrastructural, and chemical aspects were evaluated during development of (1) fruit produced by artificial pollination (AP), (2) fruit from AP followed by the applic...
Article
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The banana tree is associated with different species of endophytic bacteria that can stimulate plant growth. However, further studies are needed to better understand the relationships between this group of bacteria and the host plant. The objective of this study was to investigate the localization of the EB-40 (Bacillus sp.) through anatomical and...
Article
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Phenology and thermal requirements of the atemoya tree (Annona cherimola Mill. X Annona squamosa L.) The present study had as the main objective the documentation and characterization of the different phenological stages, as well as the definition of the thermal requirements, of the atemoya tree for two agronomic seasons. From shoot development to...
Article
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The present research aimed to evaluate the effect of applying gibberellic acid (GA3) with hand (HP) or natural pollination (NP) on fruit set and the fruit quality of ‘Red’ and ‘Lessard Thai’ sugar apple and ‘Gefner’ atemoya fruits.This study was performed in an experimental orchard located in Homestead, Florida, USA. The experimental design include...
Article
The aim of this study was to evaluate the genetic diversity between and within of six full-sib families of Jatropha through ISSR molecular markers. Six genitors were selected based on oil and seed potentiality. A set of 20 ISSR markers was used. The genetic distances were estimated based on Jaccard similarity coefficient and the descriptive statist...
Article
Full-text available
O presente estudo foi realizado com objetivo de avaliar o efeito da polinização artificial e do ácido giberélico (GA3) em diferentes doses e épocas de aplicação no pegamento, frutificação efetiva e na qualidade de frutos de atemoieira 'Gefner'. O delineamento experimental foi em blocos casualizados, com treze tratamentos, quatro repetições e cinco...
Article
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The objective of this study was to characterize banana tree endophytic bacteria at genus and species level and to determine the metabolic reactions associated with the nitrogen transformations. The identification at genus and species levels was performed using the partial sequencing of the rDNA 16S region. The assimbyotic nitrogen fixation, the red...
Article
Artificial pollination is key in the commercial production of the sugar apple (Annona squamosa). The influence of the marked climatic seasonality typical of the semi-arid regions, characterized by two seasons (dry and rainy) where this crop is grown on pollen grain development and performance and, consequently, productivity is unclear. To assess wh...
Article
Full-text available
Forty isolates of endophytic bacteria isolated from banana tree roots were assessed as to their capacity to solubilize phosphate in a solid culture medium supplemented with different inorganic and one organic source of phosphorus. The amount of phosphorus (P) in each liquid medium was quantified, and an indirect assessment of acid phosphatase activ...
Article
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The phenological growth stages of various species of monocotyledonous and dicotyledonous plants can be uniformly coded using the Biologische Bundesanstalt, Bundessortenamt, und Chemische Industrie (BBCH) scale. The aim of the present study was to determine the duration of different phenological stages and the temperature requirements of the sugar-a...
Article
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The forage palm is cultivated in several arid and semi-arid regions of the world, characterized by water scarcity. In Brazil, the plant is a good option for forage production, meeting the food demand of animals, because it is a voluminous food, abundancy in water and nutrients. The use of in vitro micropropagation techniques, is an alternative to i...
Article
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This study aimed to evaluate the capacity for in vitro indole compound synthesis by endophytic bacteria and to compare the Salkowski colorimetric and high-performance liquid chromatography (HPLC) quantification methods. Initial screenings were performed using 10% tryptic soy agar (TSA) medium with and without L-tryptophan via the Salkowski colorime...
Article
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The use of bio-fertilizers and microbial inoculants that promote plant growth and increased yield has been accepted as an alternative to reduce the use of chemical fertilizers. The objective of the present study was to evaluate the effect of plant growth promoting bacteria inoculation on growth and quality of micropropagated banana seedlings ‘Prata...
Article
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The objective of this study was to evaluate the effects of different doses of uniconazole (UCZ) on 'Palmer' mango vegetative and reproductive response and on fruit physical, chemical, and productive characteristics during the off-season in northern Minas Gerais, Brazil. The experiment followed a randomized block design. UCZ was tested at the follow...
Article
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Jatropha curcas L. has been identified for biofuel production but it presents limited commercial yields due to limited branching and a lack of yield uniformity. The objective of this study was to evaluate the effects of single application of ethephon or a combination of 6-benzyladenine (BA) with gibberellic acid isomers A4 and A7 (GA4+7) on branch...
Article
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The sugar apple is highly dependent on the pollination and fruit tree pollen performance is crucial for successful fertilization and fruit set. The objective of this study was to determine the cardinal temperatures for in vitro pollen grains germination and evaluate the effect of temperature on pollen tube growth of sugar apple. The experimental de...
Article
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The biological function of fruiting is to produce and disseminate seeds. However, seedless fruits have some advantages, including the ease of consumption and the increased added value of the final product and fruit quality. The present study aimed to evaluate the combined use of gibberellic acid (GA3) and hand pollination with Annona squamosa polle...
Article
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RESUMO: O objetivo deste trabalho foi avaliar o efeito da aplicação de CaCl2 em pré-colheita, em diferentes doses e épocas no controle do despencamento natural de frutos da bananeira 'FHIA-18'. O delineamento experimental foi o de blocos casualizados, em esquema fatorial 3x3+1 testemunha, sendo testadas as doses de 2, 4 e 6% de CaCl2 aos 60, 90 e 1...
Conference Paper
Full-text available
Rhizobacteria and endophytic bacteria are recognized for their abilities in promoting growth, solubilization of nutrients, nitrogen fixation and control of pests and diseases in banana and other plant species. Current studies developed by researchers at Montes Claros State University indicate that the banana lives symbiotically with a wide diversit...
Article
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Silicon use on plants has been expanded because it may reduce overall pest attacks, increase production and improve product quality. The aim of the present study was to evaluate the influence of different silicon quantities applied to the soil on 'Palmer' mango tree cultivation under irrigated conditions. The experiment was performed at a commercia...
Article
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Paclobutrazol (PBZ), a synthetic plant growth regulator, was applied to mango trees to control vegetative growth and induce flowering. The objective of this study was to evaluate the effect of PBZ and tip pruning on flowering, yield and fruit quality of mango trees, cultivar 'Palmer', in irrigated conditions in a semi-arid region of Brazil. Uniform...
Article
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Stenospermy was identified in naturally occurring sugar-apple (Annona squamosa) mutants with great potential for use in genetic improvement programs. However, to date, there have been no detailed studies of the development of aspermic fruit in this species. The aim of the present study was to characterize the anatomy of developing fruit in the 'Bra...
Article
Full-text available
O objetivo deste trabalho foi avaliar os efeitos de reguladores de crescimento vegetal sobre a frutificação efetiva e a qualidade de frutos partenocárpicos de atemoia 'Gefner'. O experimento foi realizado em pomar de atemoia 'Gefner', em Homestead, Flórida, EUA. Utilizou-se um delineamento experimental de blocos ao acaso, com quatro tratamentos, ci...
Article
Full-text available
The objective of present work was to evaluate the effect of different substrates and recipients on development of banana seedlings. The experimental was performed in a design randomized complete block, using three banana cultivars (Prata Anã, Tropical and Grand Naine), two banana clones (Prata Gorutuba and Prata Catarina); three kinds of substrates...
Data
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II Diversidade genética de isolados de Mycosphaerella musicola obtidos de bananais do norte de Minas Gerais, Brasil por meio de marcadores RAPD Genetic diversity of Mycosphaerella musicola isolates obtained from bananas of north of Minas Gerais, Brazil by using RAPD markers Recebido para publicação 30.04.12 Aprovado em 15.08.12 Devolvido pelo autor...
Article
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The objective of present study was to evaluate the effect of gibberellic acid (GA(3)) on the fruit set and fruit quality in atemoya 'Gefner' under irrigated conditions in the North of Minas Gerais. The experiment was performed in a commercial farm of atemoya 'Gefner'. The experimental design was completely randomized blocks with four replicates and...
Article
Full-text available
A total of 40 endophytic bacterial isolates obtained from banana tree roots were characterized for their biotechnological potential for promoting banana tree growth. All isolates had at least one positive feature. Twenty isolates were likely diazotrophs and formed pellicles in nitrogen-free culture medium, and 67% of these isolates belonged to the...
Article
Full-text available
Este trabalho teve como objetivo avaliar o efeito da aplicação de ácido giberélico (GA3) no pegamento, frutificação efetiva e qualidade de frutos de atemoieira 'Gefner', nas condições irrigadas do norte de Minas Gerais. O experimento foi conduzido em pomar comercial de atemoieira 'Gefner', em Matias Cardoso. O delineamento experimental foi o de blo...
Article
Variability in floral, fruit, and seed characteristics, and oil content of 15 accession of Jatropha curcas during early development were assessed during two flowering periods in south Florida subtropical climate. The two flowering periods had leaf flushing in March. Field evaluation using 18 quantitative traits showed significant variation among ac...
Article
Full-text available
Improvements in yield and fruit quality in atemoya, mainly during the period of out of season are priorities for growers. The purpose of this study was to evaluate the growth and yield of atemoya 'Gefner' under different pruning intensities. The experimental design was randomized blocks, with five treatments, four replications and one plant per blo...
Article
Full-text available
Genetic diversity of 20 'Prata Anã Gorutuba' banana clones, four 'Prata Rio' clones, four 'Prata Catarina' clones and the cultivars Caipira, Thap Maeo, Tropical, Maçã and Prata Anã was evaluated by using Single Sequence Repeats markers. Of a total of 19 SSR's primers used 57.8% amplified polymorphic and distinct bands, 26.3% did not amplified speci...
Article
Full-text available
Endophytic bacteria isolated from shoot tip cultures of banana 'Tropical' and 'Galil 18' were identified at the genera and species levels by means of the profile of fatty acids test through gas chromatography and the potential of plant growth promotion of micropropagated 'Prata Anã' banana plantlets was evaluated. A completely randomized experiment...
Conference Paper
The phenotypic diversity of 15 accessions of jatropha (Jatropha curcas L.) during the first and second flowering periods under the warm subtropical south Florida climate was assessed by using multivariate analysis. Plants were established in field plots at the Tropical Research and Education Center (TREC), University of Florida, in Homestead, FL. P...
Conference Paper
Full-text available
Fruit set of commercial Annonaceae by natural pollinators is generally insufficient to produce commercially acceptable yields. In addition, several investigations have reported the pollen source and age of the pollen affects the potential percentage of fruit set of sugar apple and atemoya. The objectives of present investigation were to determine t...
Article
Full-text available
The genetic diversity of endophytic bacteria in banana 'Prata Anã' roots was characterized. Two hundred and one endophytic bacteria were isolated, 151 of which were classified as Gram-positive and 50 as Gram-negative. No hypersensitivity response was observed in any of the isolates. The rep-PCR technique generated different molecular profiles for e...
Article
Full-text available
Genetic diversity in a collection of 64 sugar apple accessions collected from different municipalities in northern Minas Gerais was assessed by RAPD analysis. Using 20 selected RAPD primers 167 fragments were generated, of which 48 were polymorphic (28.7%) producing an average of 2.4 polymorphic fragments per primer. Low percentage of polymorphism...
Article
Full-text available
Endophytic bacteria isolated from shoot tip cultures of banana ‘Tropical’ and ‘Galil 18’ were identified at the genera and species levels by means of the profile of fatty acids test through gas chromatography and the potential of plant growth promotion of micropropagated ‘Prata Anã’ banana plantlets was evaluated. A completely randomized experiment...
Article
Full-text available
The genetic diversity among 46 accessions of physic nut was estimated with Nei and Li's similarity coefficient based on a collection of 69 random amplified polymorphic DNA (RAPD) sequences and 37 inter-simple sequence repeat (ISSR) polymorphic loci. The genetic distance between accessions ranged from 0.13 to 0.76, with an average genetic distance o...
Article
Jatropha curcas L. (jatropha) is a species identified for biofuel production because of the high quality of the oil produced by its seeds. However, jatropha is undomesticated and little information is available about its reproductive characteristics. Breeding and genetic improvement programs are much needed for the jatropha development as a bioener...
Article
Full-text available
Eleven primers RAPD were used to estimate the genetic variability between 31 isolates of M. musicola collected from 'PrataAnã' and Nanica bananas that were cultivated in northern Minas Gerais, Brazil. A total o 83 fragments were amplified, of which 73 were polymorphic, corresponding to an average of 6.6 polymorphic fragments per primer. The genetic...
Article
Full-text available
The purpose of this study was to evaluate fruit set and pollen grain germination of 'Brazilian seedless' sugar apple. Two experiments were performed: 1) one in a completely randomized design with three treatments (natural and artificial pollination and self-fertilization), with three replications of 10 flowers per plot, 2) and the other in a comple...
Article
Full-text available
This study aimed to to evaluate the effect of plant growth regulators on the fruit set of atemoya 'Gefner'. Three experiments were carried out in the municipality of Matias Cardoso, North of Minas Gerais. In the first experiment four types of auxins, indol-butyric acid (IBA), indol-acetic acid (IAA), naphthaleneacetic acid (NAA) and dichlorophenoxy...
Conference Paper
Jatropha (Jatropha curcas L.) is a species in the Euphorbiaceae that has been identified as a potential bioenergy crop. The seeds contain oil of high quality already proven suitable for biodiesel and jet fuel use. However, jatropha is still non-domesticated. Breeding and genetic programs are limited. Key to any successful breeding program is the id...
Conference Paper
Biofuels and bioenergy encompass a wide range of alternative sources of energy of biological origin. Jatropha (Jatropha curcas L.) has become a species of interest worldwide because its seeds produce oil of high quality for biodiesel and jet fuel. However, the species agronomical characteristics and the potential seed production is still uncertain,...
Conference Paper
Full-text available
Jatropha (Jatropha curcas L.) is a species that has been identified for biodiesel and jet fuel production, as seeds produce oil of high quality. However, because jatropha is non-domesticated, poor branching and high male to female flower ratio are limitations to achieving high yields at the commercial level. Plant growth regulators (PGRs) have been...