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| Registros recuperados: 15 | |
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| Souza,Isys Mascarenhas; Funch,Ligia Silveira; Queiroz,Luciano Paganucci de. |
| ABSTRACT Peltogyne chrysopis is an arboreal legume endemic to the Atlantic Forest and known only from the state of Bahia, Brazil. Focal observations were made of anthesis, pollen availability, stigma receptivity, nectar production, and the presence of osmophores and UV-reflective pigments for the species. Floral visitors were also observed and classified based on the timing and frequency of their visits and their foraging behavior. The breeding system was inferred from the pollen-ovule ratio and pollen tube growth after pollination treatments. Peltogyne chrysopis was found to be melittophilous, with anthesis occurring from 02h00min to 05h00min, and protogynous and xenogamous, with flower scent emission and pollen release before sunrise. Xenochlora... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthesis; Compatibility system; Floral rewards; Leguminosae; Melittophily; Pollinator efficiency; Xenochlora nigrofemorata. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300493 |
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| Ortega B,Rodrigo; Aresti E,Macarena; Pereira R,Iris. |
| Geographical and climatic factors limit the production of temperate rice (Oryza sativa L.) in Chile. Large thermal fluctuations of air and water temperatures affect the viability of pollen, causing high levels of spikelet sterility (blanking), resulting in reduced yields per hectare. Counting viable pollen grains, at the time of anthesis, may allow determining, ahead, whether there will be yield losses by spikelet sterility; besides, knowing the potential pollen viability serves as a powerful tool for material selection in breeding programs, and for determining which management factors may influence blanking. If performed manually, counting total and viable pollen grains can be extremely tedious, producing highly variable results. The present work had... |
| Tipo: Journal article |
Palavras-chave: Rice crop; Pollen counting; Image analysis; Anthesis; Spikelet sterility. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100002 |
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| GARCIA,Lismaíra Gonçalves Caixeta; SILVA,Flávio Alves da; ASQUIERI,Eduardo Ramirez; BOAS,Eduardo Valério de Barros VILAS; OGANDO,Felipe Iwagaki Braga; AGUIAR,Claudio Lima de; DAMIANI,Clarissa. |
| Abstract The objective of this study was to characterize jabuticaba fruits for their proximate composition, minerals profile, and predominant sugars during fruit physiological development. The fruits were harvested ten days after anthesis (DAA) until maturity, at intervals of four days between collections. The period between anthesis and maturity was 34 days. An increase in moisture was observed, as for protein and lipids up to 18 DAA, with subsequent reduction until ripening, while an opposite behavior was observed for ash and carbohydrates levels. In general, minerals decreased throughout the fruit development. Regarding the carbohydrates profile, fructose showed the highest concentration, followed by glucose and sucrose, respectively, with an increase... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthesis; Fructose; Glucose; Myrciaria sp. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500016 |
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| GARCIA,Lismaíra Gonçalves Caixeta; SILVA,Flávio Alves da; ASQUIERI,Eduardo Ramirez; BOAS,Eduardo Valério de Barros Vilas; DAMIANI,Clarissa. |
| ABSTRACT The bioactive compounds and in vitro antioxidant activity of jabuticaba fruits var. Pingo de mel were evaluated during their physiological development. The fruits were harvested ten days after anthesis until maturity, at intervals of four days between collections. The period between anthesis and maturity was 34 days. Higher phenolics levels, hydrolysed tannins, and antioxidant activity were observed in 10 days after anthesis, while vitamin C contents were higher throughout the ripening process. At the end of development (34 days), higher levels of vitamin C and lower hydrolysed tannin were observed. It is known that the lower the hydrolysed tannins, the better the sensory characteristics of the fruit, and considering the benefits of vitamin C, it... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthesis; Myrciaria sp.; Vitamin C; Hydrolysed tannins. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600556 |
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| Martins,Emanoel Sanches; Davide,Livia Maria Chamma; Miranda,Gian José; Barizon,Jefferson de Oliveira; Souza Junior,Francisco de Assis; Carvalho,Rafael Pelloso de; Gonçalves,Manoel Carlos. |
| ABSTRACT: In the present study, we aimed to assess the in vitro viability of pollen grains from maize cultivars collected at different times and days in the field. Four cultivars (Sol da Manhã, XB 6012, XB 8010, and BRS 2020) were evaluated from the second to fifth day of anthesis in three times. Pollen samples were evaluated for their in vitro viability through standard germination test in liquid and solid media and tetrazolium staining. The experimental design was completely randomized, in 4x4x3 split-split plots with four replicates. Data were subjected to analysis of variance followed by a means clustering test and linear regression analysis. The average percentage of viable pollen varied according to the day, collection time, and cultivar. In general,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthesis; Maize pollinization; Zea mays. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200201 |
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| KIILL,LÚCIA HELENA PIEDADE; FEITOZA,EDSÂNGELA DE ARAÚJO; SIQUEIRA,KÁTIA MARIA MEDEIROS DE; RIBEIRO,MÁRCIA DE FÁTIMA; SILVA,EVA MÔNICA SARMENTO DA. |
| ABSTRACT Floral morphology and biology are important characteristics for plant-pollinator interactions and may influence the behavior of these agents. This study aimed to determine which floral attributes of different melon hybrids influence this interaction and, consequently, their attractiveness in simultaneous crops. The study was conducted in the region of Petrolina, State of Pernambuco (PE)/Juazeiro, State of Bahia (BA) and Mossoró, State of Rio Grande do Norte (RN), in areas with the following melon hybrids: Yellow type, Piel de Sapo, Cantaloupe and Galia. For studies on floral morphology and biology, hermaphrodites and male flowers of each hybrid were analyzed for their size and nectar chamber size, pollen and nectar production, anthesis time and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthesis; Cucurbitaceae; Nectar; Pollen; Floral resources. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200604 |
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| Diniz,Fábio Oliveira; Novembre,Ana Dionisia da Luz Coelho. |
| ABSTRACT It is important to understand the seed maturation process to determine the time point at which the seeds achieve optimum quality and the ideal time for harvest. This study aimed to study the maturation of Physalis peruviana L. seeds, based on flowering time and age of the fruit. This study was conducted from March to October of 2016 and 2017, in the city of Piracicaba, São Paulo. The plants were cultivated in four blocks using four stems, with spacing of 1.0 m between the plants and of 2.5 m between the rows. As experimental treatments, two flowering time points were defined: 55 and 105 days after transplanting (DAT); in each period, the flowers were marked at the anthesis and the respective fruits and seeds were evaluated at 45, 60, 75, and 90... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cape gooseberry; Physiological maturity; Germination; Anthesis; Harvest. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300447 |
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| Santiago,Willen Ramos; Gama,Juliana Simões Nobre; Torres,Salvador Barros; Bacchetta,Gianluigi. |
| ABSTRACT Determination of seed physiological maturity allows predicting the most appropriate time for harvest, aiming to obtain seeds with high physiological potential. Physalis angulata (Solanaceae) has pharmacological and agro-industrial potential, but there is little information on its reproductive phenology. Thus, this study aimed to evaluate the physiological maturity of P. angulata seeds according to fruit age. Fruits were harvested at 7, 14, 21, 28 and 35 days after anthesis (DAA) and the following evaluations were conducted: fruit weight and diameter, seed moisture content, 100-seed dry weight, 1000-seed weight, electrical conductivity, germination, germination first count, emergence, and seedling dry weight and length. The experimental design was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanaceae; Anthesis; Harvest; Germination; Physiological potential. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300431 |
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| Registros recuperados: 15 | |
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