Publications by authors named "Vilma Ferreira"

5 Publications

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Production and performance of sugarcane seeds (caryopses) from different hybridizations involving RB92579.

An Acad Bras Cienc 2018 Oct-Dec;90(4):3243-3248. Epub 2018 Jul 19.

Universidade Federal de Alagoas, Centro de Ciências Agrárias, BR 104 Norte, Km 85, 57100-000 Rio Largo, AL, Brazil.

A major challenge in sugarcane breeding program is the obtaining of enough number of seeds (caryopses) for the development of new improved cultivars. Genotypes differ in their function as pollen recipient and pollen donor, which also affect the seed performance. Thus, the aim of this study was to verify the production and performance of sugarcane seeds from different hybridizations involving RB92579 as pollen recipient and pollen donor. Twelve bi-parental crossings were carried out involving RB92579 and other different genotypes randomly chosen. Seed production potential was evaluated by percentage of fertile spikelets and caryopsis fresh weight. The seed physiological potential was determined by evaluating germination and vigor (index of germination rate, number of normal seedlings per gram of fuzz, and seedling dry weight). The results showed better performance for RB92579 as pollen donor for all characteristics studied. Therefore, RB92579 sugarcane cultivar should be used as pollen donor during hybridizations, condition that permits a greater production and physiological performance of seeds for the sugarcane breeding programs.
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http://dx.doi.org/10.1590/0001-3765201820170271DOI Listing
February 2019

Interactive Video Gaming Improves Functional Balance in Poststroke Individuals: Meta-Analysis of Randomized Controlled Trials.

Eval Health Prof 2020 03 22;43(1):23-32. Epub 2018 Jul 22.

Department of Physical Therapy, University of Toronto, Toronto, Ontario, Canada.

The main objective of this study was to evaluate the effects of interactive video games on functional balance and mobility in poststroke individuals. The Health Science databases accessed included Medline via PubMed, LILACS, SciELO, and PEDro. The inclusion criteria were as follows: clinical studies evaluating the use of interactive video games as a treatment to improve functional balance and mobility in individuals poststroke and studies published in the Brazilian Portuguese, English, or Spanish language between 2005 and April 2016. PEDro Scale was used to analyze the methodological quality of the studies. The Berg Balance Scale and Timed Up and Go Test (TUGT) data were evaluated using a meta-analysis, the publication bias was assessed by funnel plots, and the heterogeneity of the studies by statistic. Eleven studies were included in the final analysis. Functional balance improved in individuals treated using interactive video games (mean difference = 2.24, 95% confidence interval [0.45, 4.04], = .01), but no improvement was observed in mobility as measured by TUGT. The studies presented low heterogeneity (24%). The mean score on the PEDro Scale was 6.2 ± 1.9. Interactive video games were effective in improving functional balance but did not influence the mobility of individuals poststroke.
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http://dx.doi.org/10.1177/0163278718784998DOI Listing
March 2020

Effects of Kinesio Taping on breast cancer-related lymphedema: A meta-analysis in clinical trials.

Physiother Theory Pract 2018 May 8;34(5):337-345. Epub 2018 Jan 8.

b Department of Physical Therapy , Ibirapuera University , São Paulo , Brazil.

Background: Lymphedema is known as a secondary complication of breast cancer treatment, caused by reduction on lymphatic flow and lymph accumulation on interstitial space. The Kinesio Taping (KT) has become an alternative treatment for lymphedema volume reduction. The objective of the study was to evaluate the literature through a systematic review on KT effects on lymphedema related to breast cancer.

Methods: Search strategies were performed by the following keywords: "Kinesio Taping," "Athletic Tape," "Cancer," "Neoplasm," "Lymphedema," and "Mastectomy" with derivations and different combinations. The following databases were accessed: SCIELO, LILACS, MEDLINE via PubMed, and PEDro, between 2009 and 2016. Studies published in English, Portuguese, and Spanish were considered for inclusion. The studies' methodological quality was assessed by the PEDro scale.

Results: Seven studies were identified by the search strategy and eligibility. All of them showed positive effect in reducing lymphedema (perimeter or volume) before versus after treatment. However, with no effects comparing the KT versus control group or others treatments (standardized mean difference = 0.04, confidence interval 95%: -0.24; 0.33), the average score of the PEDro scale was 4.71 points.

Conclusions: KT was effective on postmastectomy lymphedema related to breast cancer; however, it is not more efficient than other treatments.
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http://dx.doi.org/10.1080/09593985.2017.1419522DOI Listing
May 2018

Photosynthetic capacity and water use efficiency in Ricinus communis (L.) under drought stress in semi-humid and semi-arid areas.

An Acad Bras Cienc 2017 Oct-Dec;89(4):3015-3029. Epub 2017 Dec 7.

Laboratório de Fisiologia Vegetal, Centro de Ciências Agrárias, Universidade Federal de Alagoas, Campus Delza Gitaí, BR 104 Norte, Km 85, 57072-900 Rio Largo, AL, Brazil.

Castor bean is one of the crops with potential to provide raw material for production of oils for biodiesel. This species possess adaptive mechanisms for maintaining the water status when subjected to drought stress. A better understanding these mechanisms under field conditions can unravel the survival strategies used by this species. This study aimed to compare the physiological adaptations of Ricinus communis (L.) in two regions with different climates, the semi-arid and semi-humid subject to water stress. The plants showed greater vapor pressure deficit during the driest hours of the day, which contributed to higher values of the leaf temperature and leaf transpiration, however, the VPD(leaf-air) had the greatest effect on plants in the semi-arid region. In both regions, between 12:00 p.m. and 2:00 p.m., the plants presented reduction in the rates of photosynthesis and intracellular CO2 concentration in response to stomatal closure. During the dry season in the semi-arid region, photoinhibition occurred in the leaves of castor bean between 12:00 p.m. and 2:00 p.m. These results suggest that castor bean plants possess compensatory mechanisms for drought tolerance, such as: higher stomatal control and maintenance of photosynthetic capacity, allowing the plant to survive well in soil with low water availability.
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http://dx.doi.org/10.1590/0001-3765201720160729DOI Listing
March 2018

Sugars levels of four sugarcane genotypes in different stem portions during the maturation phase.

An Acad Bras Cienc 2017 Apr-Jun;89(2):1231-1242. Epub 2017 Apr 21.

Universidade Federal de Alagoas, Departamento de Agricultura, Rodovia BR 104, Km 85, s/n, 57100-000 Rio Largo, AL, Brazil.

Maturation is a characteristic of sugarcane plant (Saccharum spp.) and even when grown under the same soil and climate conditions the varieties differ on the maturation curve. Thus, studies that allow establishing maturation curves of different sugarcane genotypes in the local soil and climate may indicate the proper harvesting period to ensure better quality of the raw material. This study aimed to analyze the levels of soluble sugars during the maturation phase and assess the technological and productivity indexes of four irrigated sugarcane genotypes in the region of Rio Largo, Alagoas. The experiment was conducted in randomized blocks in a 4 x 2 x 5 factorial: four genotypes (RB92579, RB98710, RB99395 and RB961003), two stem portions (internodes 1-4 and internodes 5-8) and five seasons (82, 49, 25, 13 and 3 days before harvesting), each treatment with three replications. Internodes 1-4 showed the highest levels of reducing sugars, while the largest accumulation of sucrose and total soluble solids occurred in internodes 5-8. RB99395 genotype showed more stability in the sugar levels during sugarcane maturation, which can indicate early maturation and high agricultural yield.
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http://dx.doi.org/10.1590/0001-3765201720160594DOI Listing
March 2018