|
|
|
| Registros recuperados: 96 | |
|
|
| Liuth,Heitor Scarpati; Talora,Daniela Custódio; Amorim,André Márcio. |
| In tropical forests with low seasonality, climatic variables generally exert a weak influence on the phenology of species. The seasonality of phenophases in closely related taxa can be controlled by phylogenetic constraints in such environments. In this study, our aim was to describe the phenology of Rubiaceae in the understory of the Atlantic Forest in the southern part of Bahia, Brazil, as well as to evaluate the seasonality and phenological synchrony of this family. For two years, we observed 90 individuals belonging to 13 species, in an area of 0.2 ha. Leaf flushing and leaf fall did not demonstrate any seasonality, were continuous for most species and correlated with few of the climatic variables. Flowering was seasonal and correlated positively with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf flushing; Phenology; Flowering; Fruiting; Psychotria. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100019 |
| |
|
|
| Lacerda,Dinnie Michelle Assunção; Rossatto,Davi Rodrigo; Ribeiro-Novaes,Éville Karina Maciel Delgado; Almeida Jr.,Eduardo Bezerra de. |
| ABSTRACT Evergreen (EG) and deciduous (DEC) species exhibit distinct strategies to overcome dry periods and achieve adequate water status for reproduction and growth. Such particularities may result in distinct reproductive strategies between these groups. Thus, we evaluated the phenology of EG and DEC groups, comparing and differentiating their reproductive phenophases in an area of Brazilian savanna (cerrado sensu stricto), located in Mirador State Park, Maranhão State, by associating these patterns with leaf fall and flushing. Leaf fall, leaf flushing, flowering and fruiting data were monitored between April 2014 and March 2016 for 12 EG and 13 DEC species. To assess differences in flowering and fruiting patterns between EG and DEC, we compared... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Flowering; Fruiting; Leaf fall; Leaf flushing; Leaf habit. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300367 |
| |
|
|
| Sánchez-Gutiérrez,Adriana; Ovando-Medina,Isidro; Adriano-Anaya,Lourdes; Vázquez-Ovando,Alfredo; Salvador-Figueroa,Miguel. |
| ABSTRACT Jatropha curcas is a plant that accumulates high-quality oil in its seeds, which is capable of being transformed into liquid biofuel. However, several aspects of its flowering are still unknown, which is a key step in the production of fruits, seeds, and oil. Flowering is a complex process that is regulated by various factors at the molecular level, including microRNAs (miRNAs). There is evidence suggesting that the miRNAs of the miR156 and miR172 families play a key role in the flowering transition of plants. For this reason, the dynamics of miR156 and miR172 were studied during a production cycle of J. curcas. Our results reveal that J. curcas has a mechanism for the expression of these miRNAs that differs from that reported for the vast... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flowering; Jatropha curcas; MiR156; MiR172; MiRNAs. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100099 |
| |
|
| |
|
|
| Barbosa, Cristina Maria Pacheco; Agência Paulista de Tecnologia dos Agronegócios; Carvalho, Paulo César de Faccio; APTA Pólo Regional do Noroeste Paulista; Cauduro, Guilherme Fernandes; APTA Pólo Regional do Noroeste Paulista; Devincenzi, Thais; APTA Pólo Regional do Noroeste Paulista; Nabinger, Carlos; APTA Pólo Regional do Noroeste Paulista; Jacques, Aino Victor Ávila; APTA Pólo Regional do Noroeste Paulista. |
| Este trabalho foi conduzido na E.E.A da UFRGS/RS (30°05’S e 51°39’W) com o objetivo de avaliar o efeito de métodos e intensidades de pastejo na dinâmica populacional de azevém (Lolium multiflorum Lam.) em ressemeadura natural. Conduziu-se a pastagem em dois métodos de pastejo (lotação contínua e rotacionada) e duas intensidades de pastejo (moderada e baixa), em um delineamento em blocos casualizados, em esquema fatorial com três repetições (2x2x3). No ano seguinte, após um ciclo de lavoura de soja no verão, foi contado o número de perfilhos de azevém estabelecidos via ressemeadura natural. Os resultados demonstraram não ter havido interação (p > 0,05) entre os métodos e as intensidades de pastejo, e seus efeitos foram analisados de forma independente.... |
|
Palavras-chave: 5.04.04.00-8 Pastagem e Forragicultura integração lavoura-pecuária; Inflorescências; Oferta de forragem; Sistemas mistos. integrated crop-livestock systems; Flowering; Forage allowance; Mixed systems.. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6463 |
| |
|
|
| Milosevic,Tomo; Milosevic,Nebojsa. |
| In situ selection of vineyard peach (Prunus pérsica spp. vulgaris Mill.) genotypes was conducted in 2006 and 2007 in the region of Kfusevac (Central Serbia). Identification, observation and recording of the phenological and pomological properties of the highest-quality genotypes were carried out. Twenty-eight genotypes of the highest quality were selected out of 2093 genotypes, based on biological and pomological properties, and compared to those of cv. Redhaven (control). The onset of flowering varied (April 7-21), being early in two genotypes and late in one genotype, as compared to Redhaven, while 25 genotypes showed an intermediate flowering date, as Redhaven did. Campanula flowers were found in six genotypes, as in Redhaven, and the rosaceous type in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding; Flowering; Fruit and stone; Genetic diversity; Genotype. |
| Ano: 2010 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000300005 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Antunes,Andréa Maria; Ono,Elizabeth Orika; Sampaio,Aloísio Costa; Rodrigues,João Domingos. |
| The aim of this work was to assess the effect of an inhibitor acting in the floral differentiation on the physico-chemical characteristics of pineapple fruits and on the effect in the harvest time. Paclobutrazol was used at concentrations of 100, 150, and 200 mg L-1, applied 2, 3 or 4 times in Smooth Cayenne pineapple plants. The treatment did not influence the chemical characteristics of the fruits, and even having some physical alterations, they were within the quality standard for the commercialization. The harvest time was amplified in all the treatments comparing to the control. However, 150 mg L-1 applied twice promoted the best result when analyzing together the harvest time and the fruit fresh matter. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ananas comosus; Plant growth inhibitor; Physico-chemical characteristics; Flowering. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100003 |
| |
|
| |
|
|
| Iglesias,Domingo J.; Cercós,Manuel; Colmenero-Flores,José M.; Naranjo,Miguel A.; Ríos,Gabino; Carrera,Esther; Ruiz-Rivero,Omar; Lliso,Ignacio; Morillon,Raphael; Tadeo,Francisco R.; Talon,Manuel. |
| Citrus is the main fruit tree crop in the world and therefore has a tremendous economical, social and cultural impact in our society. In recent years, our knowledge on plant reproductive biology has increased considerably mostly because of the work developed in model plants. However, the information generated in these species cannot always be applied to citrus, predominantly because citrus is a perennial tree crop that exhibits a very peculiar and unusual reproductive biology. Regulation of fruit growth and development in citrus is an intricate phenomenon depending upon many internal and external factors that may operate both sequentially and simultaneously. The elements and mechanisms whereby endogenous and environmental stimuli affect fruit growth are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abiotic stresses; Abscission; Color break; Flowering; Fruit set; Ripening. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400006 |
| |
|
|
| Almeida,Alex-Alan F. de; Valle,Raúl R.. |
| Cacao, one of the world's most important perennial crops, is almost exclusively explored for chocolate manufacturing. Most cacao varieties belong to three groups: Criollo, Forastero and Trinitario that vary according to morphology, genetic and geographical origins. It is cropped under the shade of forest trees or as a monocrop without shade. Seedlings initially show an orthotropic growth with leaf emission relatively independent of climate. The maturity phase begins with the emission of plagiotropic branches that form the tree crown. At this stage environmental factors exert a large influence on plant development. Growth and development of cacao are highly dependent on temperature, which mainly affects vegetative growth, flowering and fruit development.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root growth; Flowering; Pod set; Flushing; Mineral nutrition. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400011 |
| |
|
| |
|
|
| Gurgel,Fábio de Lima; Laviola,Bruno Galvêas; Silva,Daniel Medeiros da; Kobayashi,Adilson Kenji; Rosado,Tatiana Barbosa. |
| Phenological studies on three morphologically distinct accessions of physic nut (Jatropha curcas L.) were conducted in the Brazilian Savannah biome. Plant growth rate, flowering, fruit formation and development were measured in order to establish appropriate management practices for increasing productivity. The accessions CNPAE-102 (toxic and susceptible to powdery mildew), CNPAE-169 (non-toxic and susceptible to powdery mildew) and CNPAE-259 (toxic and resistant to powdery mildew) were studied. Accessions with undetectable levels of phorbol ester in the grains were considered as non-toxic. The agronomic variables (plant height, number of inflorescences, number of green and ripe fruits per plant) from each accession were measured biweekly during one year... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rate; Flowering; Fruiting; Temperature. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600012 |
| |
|
|
| Vidal,Alexis K; Han,Dong-Sheng; Nakano,Masaru; Niimi,Yoshiji. |
| Experiments were performed to establish a method to reduce the time from seed to flowering in Zephyra elegans. Seedlings took at least four years to produce a flowering corm. Although germination was highest in a water-agar medium, plant necrosis occurred when plants were later transferred; therefore, MS (Murashige and Skoog) medium was selected as the medium for germination. An increase in the light intensity to 9500 lux and in the pH to 6.7, significantly increased the germination rate. Eight weeks after seed germination, seedlings were transferred to MS media with sucrose concentrations of 45, 60, 75, 90 or 105 g L-1 and a pH 5.7 or 6.7, with the aim of achieving the greatest corm weight gain. After 16 weeks, the best weight gain was obtained in the MS... |
| Tipo: Journal article |
Palavras-chave: Chilean geophyte; Corm weight gain; Flowering; Seed propagation; Zephyra elegans. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300017 |
| |
| Registros recuperados: 96 | |
|
|
|
