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2.
Rev. bras. plantas med ; 12(4): 506-509, out.-dez. 2010. graf
Article in Portuguese | LILACS | ID: lil-578993

ABSTRACT

Este trabalho teve por objetivo avaliar o efeito de diferentes diâmetros de estacas na propagação de Lippia alba. Foram testadas estacas de 25 cm de comprimento, com diâmetros de 0,3-0,5 cm; 0,6-0,9 cm e 1-1,2 cm. Aos 30 e 60 dias após o plantio das estacas foram determinadas as características biométricas, como porcentagem de enraizamento, número de brotos, comprimento dos brotos, massas secas de brotos, estacas, raízes e total. Todos os diâmetros de estacas apresentaram altas taxas de enraizamento aos 30 dias, comprovando que a L. alba é uma espécie de fácil propagação por estaquia. A produção de mudas de L. alba deve ser realizada com estacas entre 1-1,2 cm de diâmetro, que foi superior aos outros diâmetros testados na maioria das características biométricas determinadas.


The aim of this work was to study the effect of different diameters of cuttings on the propagation and growth of Lippia alba. Cuttings of 25 cm length, with three different diameters: 0.3-0.5 cm, 0.6-0.9 cm and 1-1.2 cm, were tested. At 30 and 60 days after the planting of cuttings, the following biometric parameters were determined rooting percentage; number of buds, length of buds; dry matter of buds, cuttings and roots; and total dry matter. All diameters of cuttings presented high rates of rooting after 30 days, confirming that L. alba is an easy-to-root species. L. alba seedling production should use cuttings between 1-1.2 cm diameter, which was better than the others diameters considering most of the tested parameters.


Subject(s)
Verbenaceae/growth & development , Agriculture/instrumentation , Agriculture/methods , Plants, Medicinal/growth & development , Plants/growth & development
3.
Gynecol Oncol ; 105(1): 172-5, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17188342

ABSTRACT

INTRODUCTION: Adenocarcinoma of the uterine cervix (AC) occurs in 15-20% of primary cervical neoplasias. Although some etiologic factors for squamous cell carcinoma are well defined, and its relationship with sexually transmitted disease as human papillomavirus (HPV) is established, we still do not know about the causative factors of most of AC besides HPV infection. OBJECTIVES: To determine the presence of herpes simplex virus type 2 (HSV-2) and Chlamydia trachomatis (CT) DNA in AC specimens, and its correlation with HPV infection. METHODS: 206 paraffin-embedded cases of AC were selected to DNA extraction. The specimens and the DNA were isolated. Samples were first screened for beta-globin DNA sequences, and 67 cases were considered adequate to further analysis. In a previous analysis, DNA of HPV was identified in 79.4% of specimens included in this series (51% HPV 18 and 34% HPV 16). The local ethical committee approved the study. RESULTS: All samples were negative for HSV-2 DNA and CT DNA. CONCLUSIONS: In our series HSV-2 DNA and CT DNA were not found to be integrated to the genome of adenocarcinoma of the uterine cervix and do not seem to be a co-factor for HPV on the etiology of this histologic subtype.


Subject(s)
Adenocarcinoma/epidemiology , Chlamydia Infections/epidemiology , Chlamydia trachomatis/isolation & purification , Herpes Genitalis/epidemiology , Herpesvirus 2, Human/isolation & purification , Uterine Cervical Neoplasms/epidemiology , Adenocarcinoma/microbiology , Adenocarcinoma/virology , Brazil/epidemiology , Chlamydia Infections/virology , Chlamydia trachomatis/genetics , DNA, Bacterial/analysis , DNA, Viral/analysis , Female , Herpes Genitalis/microbiology , Herpesvirus 2, Human/genetics , Humans , Prevalence , Uterine Cervical Neoplasms/microbiology , Uterine Cervical Neoplasms/virology
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