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Comportamento agronômico e avaliação tecnológica dos cultivares de trigo IAC 120 (Curumi), IAC 286 (Takaoka) e IAC 289 (Marruá) para o estado de São Paulo

Felicio,João Carlos; Camargo,Carlos Eduardo de Oliveira; Vitti,Policarpo; Campagnolli,Doralice Maria Falcirolli
Fonte: Instituto Agronômico de Campinas Publicador: Instituto Agronômico de Campinas
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/1994 Português
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Avaliaram-se os cultivares de trigo IAC 120 (Curumi), IAC 286 (Takaoka) e IAC 289 (Marruá) quanto à produtividade, às reações aos agentes causais das ferrugens do colmo e da folha (em condição de campo e de casa de vegetação) e à helmintosporiose, em experimentos instalados em solos corrigidos e não corrigidos em relação à acidez, em condição de sequeiro ou de irrigação por aspersão, em diferentes regiões paulistas em 1988-92. Avaliaram-se também os cultivares por testes de tolerância a ferro, alumínio e manganês, empregando-se soluções nutritivas, em laboratório, além das qualidades físicas de panificação das farinhas obtidas dos seus grãos e o teste final de panificação. A produtividade de grãos do IAC 120 superou a do BH 1146 e do IAC 24 (controle) em 19 e 14% respectivamente, nas condições de sequeiro. O IAC 289, nas mesmas condições de cultivo, apresentou produção de grãos 26 e 19% maior em relação às testemunhas Anahuac e IAC 24 e, em condição de irrigação, foi superior 13 e 9% em relação aos mesmos controles. O IAC 286 produziu 12 e 15% a mais que o Anahuac e o IAC 24 em condições de irrigação. Para a ferrugem do colmo (Puccinia graminis tritici), em casa de vegetação...

Indirect evaluation of estrogenic activity post heterotopic ovarian autograft in rats

Damous,Luciana Lamarão; Silva,Sônia Maria da; Simões,Ricardo dos Santos; Sakano,Célia Regina de Souza Bezerra; Simões,Manuel de Jesus; Montero,Edna Frasson de Souza
Fonte: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia Publicador: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2008 Português
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PURPOSE: To morphologically evaluate the estrogenic effect on the uterus and vagina of rats submitted to ovarian autografts. METHODS: Twenty Wistar EPM-1 adult rats were bilaterally ovariectomized, followed by ovarian transplants in retroperitoneal regions. The animals were divided in four groups of five animals, according to the day of euthanasia: G4, G7, G14 and G21, corresponding to the 4th, 7th, 14th and 21st day after surgery, respectively. Vaginal smears were collected from the first day of surgery until euthanasia day. After that, the vagina and uterus were removed, fixed in 10% formaldehyde and submitted to histological analysis and stained with hematoxiline and eosine. RESULTS: All animals showed estrous cycle changes during the experiment. In 4th day, the uterus showed low action of estrogen with small number of mitosis and eosinophils as well as poor development. On the 7th day, the endometrium was atrophic without mitotic signals and presented a small number of eosinophils. On the 14th and 21th days the histological findings were similar, with the presence of mitosis in the endometrial glands and intense leucocyte infiltration with a large number of eosinophils. Morphometric results showed that the endometrial and myometrial thickness as well as the number of eosinophils presented the highest values during the 14th and 21th days of the evaluation. The 7th day group also presented the lowest eosinophil numbers. Vaginal epithelium features were: 4th and 7th day groups presented non-keratinized stratified epithelium with 5 and 2 cell layers...

Effects of angico extract (Anadenanthera colubrina var. cebil) in cutaneous wound healing in rats

Pessoa,Wagner Soares; Estevão,Lígia Reis de Moura; Simões,Ricardo Santos; Barros,Maria Edna Gomes de; Mendonça,Fábio de Souza; Baratella-Evêncio,Liriane; Evêncio-Neto,Joaquim
Fonte: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia Publicador: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/2012 Português
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PURPOSE: To study the effects of the angico extract (Anadenanthera colubrina var. cebil) on the healing of rat skin. METHODS: Twenty adult rats were divided into four groups of five animals each, the G4, G7, G14 and G21, which corresponds to the respective postoperative days. Each group received two incisions on skin and subcutaneous tissue in the right and left antimere of the thoracic region, separated by a distance of 2 cm. The right lesion was treated daily with saline and the left with the angico alcoholic extract (5%). At the end of each experimental period, animals were euthanized and fragments of the wound area, together with the edges were removed, fixed in 10% formaldehyde solution and processed for paraffin embedding. In the histological sections with 5 µm of thickness, were carried out immunohistochemical methods for detection of blood vessels (VEGF) and stained with hematoxylin and eosin for morphological analysis. Statistical analysis was done by ANOVA and Tukey test (p<0.05). RESULTS: Morphological analysis showed larger fibroblasts and a higher concentration of collagen fibers in days 7 and 14 in wounds treated with the angico extract. Morphometric analysis demonstrated a significant increase in the number of blood vessels in both the seventh and 14th days (p<0.01) in wounds treated with the angico extract. CONCLUSION: The angico alcoholic extract (Anadenanthera colubrina var. cebil) induces the acceleration of wound healing in skin wounds of rats.

Effects of aroeira (Schinus terebinthifoliu Raddi) oil on cutaneous wound healing in rats

Estevão,Lígia Reis Moura; Mendonça,Fábio de Souza; Baratella-Evêncio,Liriane; Simões,Ricardo Santos; Barros,Maria Edna Gomes de; Arantes,Rosa Maria Esteves; Rachid,Milene Alvarenga; Evêncio-Neto,Joaquim
Fonte: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia Publicador: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/03/2013 Português
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PURPOSE: To evaluate the effects of aroeira (Schinus terebinthifolius) ointment on skin wound healing in rats. METHODS: Adult male rats (n=20) were divided into four groups of five animals each, as follows: G4, G7, G14 and G21, which corresponds to 4th, 7th, 14th and 21th days postoperatively. Each animal were made two incisions on the skin, including the subcutaneous tissue, in the right and left sides of thoracic region, separated by a distance of two inches. The right lesion was treated with base ointment (vaseline, lanolin); the left one was treated with base ointment containing 5% of aroeira oil. At the end of each experimental period the lesions were evaluated for the contraction degree. Then held the collection of fragments that were fixed in 10% formalin and processed for paraffin embedding. In the histological sections (5μm) was evaluated the morphology and quantified the collagen and blood vessels. The data obtained were submitted to ANOVA test complemented by Tukey-Kramer test (p<0.05). RESULTS: The contraction of the lesions was higher in wounds treated with aroeira oil than in controls at 7th and 14th days (p<0.01), whereas in the 21st day all lesions were already completely healed. The morphology showed granulation tissue more developed...

Fibrogenesis and epithelial coating of skin wounds in rats treated with angico extract (Anadenanthera colubrina var. cebil)

Pessoa,Wagner Soares; Estevão,Lígia Reis de Moura; Simões,Ricardo Santos; Mendonça,Fábio de Souza; Evêncio-Luz,Luis; Baratella-Evêncio,Liriane; Florencio-Silva,Rinaldo; Sá,Fabrício Bezerra de; Evêncio-Neto,Joaquim
Fonte: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia Publicador: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/05/2015 Português
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PURPOSE: To evaluate the effects of angico bark extract (Anadenanthera colubrina var. cebil) in the healing process of the skin of rats. METHODS: Twenty adult male rats were divided into four groups of five animals each, according to the respective postoperative days, as follow: G4, G7, G14 and G21. Each group received two incisions on skin and subcutaneous tissue in the right and left antimere of the thoracic region, separated by a distance of 2 cm. The right lesion was treated daily with saline and the left with the angico alcoholic extract (5%). At the end of each experimental period, the animals were euthanized and fragments of the wound area with the edges were removed, fixed in 10% formaldehyde solution and processed for paraffin embedding. Histological sections (5 μm of thickness) were stained with hematoxylin and eosin (HE), Gomori trichromic and picrosisirus red for morphological and morphometric analyses. Statistical analysis was done by ANOVA and Tukey-Kramer test (p<0.05). RESULTS: Morphological analysis showed larger fibroblasts and a higher concentration of collagen fibers in skyn wounds treated with the angico extract. Morphometric analysis demonstrated a significant increase in the number of fibroblasts at 7th and collagen in 7th and 14th days (p<0.01) in wounds treated with the angico extract. CONCLUSION: The angico alcoholic extract (Anadenanthera colubrina var. cebil) induces the acceleration of wound healing in skin wounds of rats.

Diferentes frações inspiradas de oxigênio em coelhos hipovolêmicos anestesiados com propofol e submetidos à ventilação mecânica

Borges,Paula Araceli; Nunes,Newton; Camacho,Aparecido Antonio; Batista,Priscila Andrea Costa dos Santos; Gava,Fábio Nelson; Bürger,Camila Paes; Moro,Juliana Vitti; Lopes,Patrícia Cristina Ferro
Fonte: Universidade Federal de Santa Maria Publicador: Universidade Federal de Santa Maria
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/11/2011 Português
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Avaliaram-se os efeitos do fornecimento de diferentes frações inspiradas de oxigênio (FiO²) em coelhos hipovolêmicos, anestesiados com infusão contínua de propofol e mantidos em ventilação controlada sobre os parâmetros respiratórios, hemogasométricos e hemodinâmicos. Foram utilizados 50 coelhos (Nova Zelândia), pesando 3,5±0,3kg, distribuídos em 5 grupos: G100 (FiO²=1), G80 (FiO²=0,8), G60 (FiO²=0,6), G40 (FiO²=0,4) e G21 (FiO²=0,21), os quais receberam xilazina (1mg kg-1) e cetamina (15mg kg-1) pela via intramuscular. Transcorridos 20 minutos, foi administrado propofol (8mg kg-1 bolus e 0,5mg kg-1 min-1) e rocurônio (0,6mg kg-1 bolus e 0,6mg kg-1 h-1). Iniciou-se então, a ventilação mecânica no modo pressão controlada. Após 30 minutos, os animais foram submetidos à hipovolemia aguda, retirando-se sangue arterial (12mL kg-1). Os parâmetros foram mensurados 30 minutos após a indução anestésica (M0) e a cada dez minutos depois da exsanguinação (M1- M7). As variáveis foram submetidas à análise de variância seguida pelo teste de Tukey (P<0,05). Os valores de PaO², SaO², P A O², AaDO² diminuíram quanto mais baixas foram as FiO². Após a indução da hipovolemia, as variáveis DC, PAM...

A conserved genetic module that encodes the major virion components in both the coliphage T4 and the marine cyanophage S-PM2

Hambly, Emma; Tétart, Francoise; Desplats, Carine; Wilson, William H.; Krisch, Henry M.; Mann, Nicholas H.
Fonte: The National Academy of Sciences Publicador: The National Academy of Sciences
Tipo: Artigo de Revista Científica
Português
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Sequence analysis of a 10-kb region of the genome of the marine cyanomyovirus S-PM2 reveals a homology to coliphage T4 that extends as a contiguous block from gene (g)18 to g23. The order of the S-PM2 genes in this region is similar to that of T4, but there are insertions and deletions of small ORFs of unknown function. In T4, g18 codes for the tail sheath, g19, the tail tube, g20, the head portal protein, g21, the prohead core protein, g22, a scaffolding protein, and g23, the major capsid protein. Thus, the entire module that determines the structural components of the phage head and contractile tail is conserved between T4 and this cyanophage. The significant differences in the morphology of these phages must reflect the considerable divergence of the amino acid sequence of their homologous virion proteins, which uniformly exceeds 50%. We suggest that their enormous diversity in the sea could be a result of genetic shuffling between disparate phages mediated by such commonly shared modules. These conserved sequences could facilitate genetic exchange by providing partially homologous substrates for recombination between otherwise divergent phage genomes. Such a mechanism would thus expand the pool of phage genes accessible by recombination to all those phages that share common modules.

Role of the Helicobacter pylori virulence factors vacuolating cytotoxin, CagA, and urease in a mouse model of disease.

Ghiara, P; Marchetti, M; Blaser, M J; Tummuru, M K; Cover, T L; Segal, E D; Tompkins, L S; Rappuoli, R
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /10/1995 Português
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The pathogenic role of Helicobacter pylori virulence factors has been studied with a mouse model of gastric disease. BALB/c mice were treated orally with different amounts of sonic extracts of cytotoxic H. pylori strains (NCTC 11637, 60190, 84-183, and 87A300 [CagA+/Tox+]). The pathological effects on histological sections of gastric mucosae were assessed and were compared with the effects of treatments with extracts from noncytotoxic strains (G21 and G50 [CagA-/Tox-]) and from strains that express either CagA alone (D931 [CagA+/Tox-]) or the cytotoxin alone (G104 [CagA-/Tox+]). The treatment with extracts from cytotoxic strains induced various epithelial lesions (vacuolation, erosions, and ulcerations), recruitment of inflammatory cells in the lamina propria, and a marked reduction of the mucin layer. Extracts of noncytotoxic strains induced mucin depletion but no other significant pathology. Crude extracts of strain D931, expressing CagA alone, caused only mild infiltration of inflammatory cells, whereas extracts of strain G104, expressing cytotoxin alone, induced extensive epithelial damage but little inflammatory reaction. Loss of the mucin layer was not associated with a cytotoxic phenotype, since this loss was observed in mice treated with crude extracts of all strains. The pathogenic roles of CagA...

A Sac I RFLP is detected with the 5-HT1a serotonin receptor probe G21

Khan, M.A.R.; Isenberg, K.E.; Aschauer, H.; Devor, E.J.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em 11/02/1990 Português
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Regional assignment of the structural gene for human alpha-L-iduronidase.

Schuchman, E H; Astrin, K H; Aula, P; Desnick, R J
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /02/1984 Português
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The structural gene encoding human alpha-L-iduronidase has been assigned to chromosome 22 by using immunologic, electrophoretic, and somatic cell hybridization techniques. Polyclonal rabbit antibodies raised against purified human low-uptake alpha-L-iduronidase were used to discriminate the human and murine isozymes by a sensitive immuno-precipitation assay. The human chromosome constitution of each clone was determined by cytogenetic and enzyme marker electrophoretic techniques. In 65 human (fibroblast)-mouse (RAG) somatic cell hybrids (from four independent fusions), the expression of human alpha-L-iduronidase was 100% concordant with the presence of human chromosome 22; the assignment was confirmed by the demonstration of the human enzyme in tertiary somatic cell hybrids containing only chromosome 22. Further verification of the gene assignment was made by detection of the human enzyme in tertiary chromosome 22 positive hybrids by Ouchterlony immunodiffusion and rocket immunoelectrophoretic experiments with polyclonal anti-human alpha-L-iduronidase antibodies that were monospecific for the human enzyme. Expression of human enzymatic activity in chromosome 22 positive hybrid lines was markedly reduced; for example, a tertiary hybrid (R-G21-J-15)...

Essential nucleotide sequences and secondary structure elements of the hairpin ribozyme.

Berzal-Herranz, A; Joseph, S; Chowrira, B M; Butcher, S E; Burke, J M
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /06/1993 Português
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In vitro selection experiments have been used to isolate active variants of the 50 nt hairpin catalytic RNA motif following randomization of individual ribozyme domains and intensive mutagenesis of the ribozyme-substrate complex. Active and inactive variants were characterized by sequencing, analysis of RNA cleavage activity in cis and in trans, and by substrate binding studies. Results precisely define base-pairing requirements for ribozyme helices 3 and 4, and identify eight essential nucleotides (G8, A9, A10, G21, A22, A23, A24 and C25) within the catalytic core of the ribozyme. Activity and substrate binding assays show that point mutations at these eight sites eliminate cleavage activity but do not significantly decrease substrate binding, demonstrating that these bases contribute to catalytic function. The mutation U39C has been isolated from different selection experiments as a second-site suppressor of the down mutants G21U and A43G. Assays of the U39C mutation in the wild-type ribozyme and in a variety of mutant backgrounds show that this variant is a general up mutation. Results from selection experiments involving populations totaling more than 10(10) variants are summarized, and consensus sequences including 16 essential nucleotides and a secondary structure model of four short helices...

Regular G21-trisomy in 3 sibs from mother with trisomy 21 mosaicism.

Osuna, A; Moreno, A
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /08/1977 Português
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This paper describes a family with 3 affected sibs with regular trisomy 21 Down syndrome. The condition seems to be transmitted from a phenotypically normal mother in whom G-trisomy mosaicism was identified. Giemsa banding depicted trisomy 21 mosaicism in cells from the mother. Chromosomes from the children showed a trisomy 21 in all the cells analysed.

N.m.r. determination of the solution conformation and dynamics of the A.G mismatch in the d(CGCAAATTGGCG)2 dodecamer.

Lane, A N; Jenkins, T C; Brown, D J; Brown, T
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em 01/10/1991 Português
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A.G base-paired mismatches that occur during replication are among the most difficult to detect by repair enzymes. Such purine.purine mispairs can exist in two conformations, one of which is stabilized by protons [Gao & Patel (1988) J. Am. Chem. Soc. 110, 5178-5182]. We have undertaken a 1H-n.m.r. and 31P-n.m.r. study of the mismatched dodecamer d(CGCAAATTGGCG)2 as a function of both temperature and pH to determine the conformational features of the A.G mismatch. At pH greater than 7 the mispaired bases are each in the anti conformation and are stacked in the B-like helix. As the pH is decreased, a second conformation becomes populated (apparent pKa approx. 5.9) with concomitant changes in the chemical shifts of protons of the mispaired bases and their nearest neighbours. Data from two-dimensional nuclear-Overhauser-enhancement spectroscopy show unequivocally that, at low pH, the dominant conformation is one in which the mismatched G residues are in the syn conformation and are hydrogen-bonded to the A residues that remain in the anti conformation. Residues not adjacent to the A.G sites are almost unaffected by the transition or the mispairing, suggesting considerable local flexibility of the unconstrained duplexes. Despite the bulging of the mispaired bases...

Partitioning Average and Heterotic Components of Direct and Maternal Genetic Effects on Growth in Mice Using Crossfostering Techniques

Nagai, J.; Bakker, H.; Eisen, E. J.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /09/1976 Português
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Crossfostering was performed using lines selected for increased 6-week body weight (H6) and increased 3-to 6-week postweaning gain (M16) and their reciprocal F1 crosses as nurse dams in the selected crossfostering group, and base population controls (C2, ICR) and their reciprocal F1 crosses in the control group. The offspring suckled were H6, M16 and F2 crosses in the selected group, and C2, ICR and their F2 crosses in the control group. Measurements taken on the individual offspring were body weights at birth (WB) and at 12, 21, 31, 42, and 63 days (W12, W21, W31, W42 and W63, respectively) and weight gains between adjacent ages (GB-12, G12–21, G21–31, G31–42 and G42–63, respectively). Least squares constants fitted to populations of genetic and nurse dams were used to calculate specific linear contrasts. Correlated responses to selection in average direct genetic effects were significant and positive for all traits examined in both H6 and M16, while the correlated responses in average maternal genetic effects were negative in M16 and negligible in H6. Selection response was primarily due to average direct genetic effects while the contribution of average maternal genetic effects was of secondary importance. The response in average direct genetic effects was smaller in M16 than in H6 through weaning (WB...

Genetic and structural analysis of base substitutions in the central pseudoknot of Thermus thermophilus 16S ribosomal RNA

Gregory, Steven T.; Dahlberg, Albert E.
Fonte: Cold Spring Harbor Laboratory Press Publicador: Cold Spring Harbor Laboratory Press
Tipo: Artigo de Revista Científica
Publicado em /02/2009 Português
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Characterization of base substitutions in rRNAs has provided important insights into the mechanism of protein synthesis. Knowledge of the structural effects of such alterations is limited, and could be greatly expanded with the development of a genetic system based on an organism amenable to both genetics and structural biology. Here, we describe the genetic analysis of base substitutions in 16S ribosomal RNA of the extreme thermophile Thermus thermophilus, and an analysis of the conformational effects of these substitutions by structure probing with base-specific modifying agents. Gene replacement methods were used to construct a derivative of strain HB8 carrying a single 16S rRNA gene, allowing the isolation of spontaneous streptomycin-resistant mutants and subsequent genetic mapping of mutations by recombination. The residues altered to give streptomycin resistance reside within the central pseudoknot structure of 16S rRNA comprised of helices 1 and 27, and participate in the U13–U20–A915 base triple, the G21–A914 type II sheared G–A base pair, or the G885–C912 Watson–Crick base pair closing helix 27. Substitutions at any of the three residues engaged in the base triple were found to confer resistance. Results from structure probing of the pseudoknot are consistent with perturbation of RNA conformation by these substitutions...

Simultaneous down-regulation of tumor suppressor genes RBSP3/CTDSPL, NPRL2/G21 and RASSF1A in primary non-small cell lung cancer

Senchenko, Vera N; Anedchenko, Ekaterina A; Kondratieva, Tatiana T; Krasnov, George S; Dmitriev, Alexei A; Zabarovska, Veronika I; Pavlova, Tatiana V; Kashuba, Vladimir I; Lerman, Michael I; Zabarovsky, Eugene R
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
Publicado em 01/03/2010 Português
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Combining Next Generation Sequencing with Bulked Segregant Analysis to Fine Map a Stem Moisture Locus in Sorghum (Sorghum bicolor L. Moench)

Han, Yucui; Lv, Peng; Hou, Shenglin; Li, Suying; Ji, Guisu; Ma, Xue; Du, Ruiheng; Liu, Guoqing
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 18/05/2015 Português
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Sorghum is one of the most promising bioenergy crops. Stem juice yield, together with stem sugar concentration, determines sugar yield in sweet sorghum. Bulked segregant analysis (BSA) is a gene mapping technique for identifying genomic regions containing genetic loci affecting a trait of interest that when combined with deep sequencing could effectively accelerate the gene mapping process. In this study, a dry stem sorghum landrace was characterized and the stem water controlling locus, qSW6, was fine mapped using QTL analysis and the combined BSA and deep sequencing technologies. Results showed that: (i) In sorghum variety Jiliang 2, stem water content was around 80% before flowering stage. It dropped to 75% during grain filling with little difference between different internodes. In landrace G21, stem water content keeps dropping after the flag leaf stage. The drop from 71% at flowering time progressed to 60% at grain filling time. Large differences exist between different internodes with the lowest (51%) at the 7th and 8th internodes at dough stage. (ii) A quantitative trait locus (QTL) controlling stem water content mapped on chromosome 6 between SSR markers Ch6-2 and gpsb069 explained about 34.7-56.9% of the phenotypic variation for the 5th to 10th internodes...

Quantitative analysis of mRNA expression levels and DNA methylation profiles of three neighboring genes: FUS1, NPRL2/G21 and RASSF1A in non-small cell lung cancer patients

Pastuszak-Lewandoska, Dorota; Kordiak, Jacek; Migdalska-Sęk, Monika; Czarnecka, Karolina H.; Antczak, Adam; Górski, Paweł; Nawrot, Ewa; Kiszałkiewicz, Justyna M.; Domańska, Daria; Brzeziańska-Lasota, Ewa
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
Português
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Adaptabilidade e estabilidade produtiva de linhagens de soja na Macrorregião sojícola 3, Brasil.

CARDOSO JÚNIOR, L. A.; MELLO FILHO, O. L.; DUARTE, J. B.; ZITO, R. K.; VAZ BISNETA, M.; CÂMARA, A. R.; NUNES JUNIOR, J.
Fonte: In: CONGRESSO BRASILEIRO DE SOJA, 6., 2012, Cuiabá. Soja: integração nacional e desenvolvimento sustentável: anais. Brasília, DF: Embrapa, 2012. Publicador: In: CONGRESSO BRASILEIRO DE SOJA, 6., 2012, Cuiabá. Soja: integração nacional e desenvolvimento sustentável: anais. Brasília, DF: Embrapa, 2012.
Tipo: Artigo em anais de congresso (ALICE) Formato: 1 CD-ROM.; 4 p.
Português
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O objetivo deste trabalho foi avaliar a adaptabilidade e estabilidade de 25 genótipos de soja (21 linhagens experimentais e 4 cultivares testemunhas), de ciclo precoce, avaliados em oito locais dentro da Macrorregião sojícola 3 (301, 302, 303 e 304), na safra 2010/2011. Para isso, utilizou-se a análise AMMI (modelo de efeitos principais aditivos e interação multiplicativa), aplicada a dados de rendimento de grãos de ensaios delineados em blocos casualizados, com quatro repetições. Todos os sete eixos principais da análise (IPCAs) estiveram relacionados ao padrão da interação de genótipos com ambientes (GxA), segundo a significância das respectivas somas de quadrados. Com isso, não houve descarte de ruído adicional, além daquele associado ao erro experimental médio, no ajuste das médias de tratamentos (genótipos) e das estimativas de interação GxA. As linhagens G20, G8, G21 e as testemunha G23 e G24 foram as mais estáveis e com boas médias de produtividade (adaptabilidade geral). O ambiente A2 (Rio Verde) foi o mais favorável à manifestação da produtividade dos genótipos, e o ambiente A6 (Itumbiara), aquele com as piores produtividades.; 2012

Contrasting fecundity size at maturity and reproductive potential of southern rock lobster Jasus edwardsii in two South Australian fishing regions

Linnane, A.; Penny, S.; Ward, T.
Fonte: Cambridge Univ Press Publicador: Cambridge Univ Press
Tipo: Artigo de Revista Científica
Publicado em //2008 Português
Relevância na Pesquisa
16.53%
The annual commercial catch from the Southern Zone of the South Australian rock lobster (Jasus edwardsii) fishery is 1900 tonnes, representing 50% of total landings from south-east Australia. A single minimum legal size (MLS) of 98.5 mm carapace length (CL) exists across the entire zone. Fecundity (F), size at onset of maturity (SOM) and relative reproductive potential (RRP) of female rock lobsters were investigated in two major fishing regions, i.e. the North Southern Zone (NSZ) and South Southern Zone (SSZ) with a view to providing a basis for future fine-scale spatial management of the resource. F ranged from 45,292 to 466,800 eggs per female and increased proportionally with CL according to the relationship: F ¼ 0.0584 CL3.1642. F was significantly higher in the NSZ compared to the SSZ but was attributed to differences in lobster size between regions. There was no significant difference in the number of eggs . g21 of egg mass between areas. SOM, estimated as the size at which 50% of females reached sexual maturity (L50) was higher in the NSZ (104.1 mm CL) compared to SSZ (92.3 mm CL). Approximately 20% of lobsters above the MLS in the commercial catch in the NSZ were under the L50 estimate. RRP, as a measure of egg production...