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| Registros recuperados: 121 | |
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| Piotto,Fernando Angelo; Batagin-Piotto,Katherine Derlene; Almeida,Marcílio de; Oliveira,Giancarlo Conde Xavier. |
| Xenia, the transmission of traits from the pollinizer to the female's tissues, is a phenomenon hitherto unknown in tomatoes. Here, we describe xenia effects on the seeds and fruits of Solanum lycopersicum, the tomato, elicited by S. galapagense. The wild tomatoes, such as S. galapagense, have highly pilose fruit surface and minute seeds, unlike the domesticated species. Crossings between S. galapagense (pollinizer) and two large-seeded, glabrous cultivars of S. lycopersicum (females) tested the former's ability to raise the trichome density and trichome-to-1000-cell ratio and to reduce the seed weight in the latter's fruits. Selfed fruits of the two cultivars, Micro-Tom and Pusa Ruby, were compared to the crossed fruits. The pollen of S. galapagense was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hormones; Pollination; Microscopy; Wild relative. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000200007 |
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| LIRA JÚNIOR,JOSÉ SEVERINO DE; BRUCKNER,CLÁUDIO HORST; CARNEIRO,PEDRO CRESCÊNCIO SOUZA. |
| ABSTRACT The methodology of self-pollination of passion fruit flowers at anthesis after stigma excision was proposed. This method was compared with self-pollination procedures at anthesis and at the stage of flower bud. Two genotypes (M7 and N9), propagated by cuttings were studied. Self-pollinations were performed at 1 pm, 1 pm and 5 pm or 5 pm. Fruit set (%), fruit mass (g), pulp mass (g), pulp/fruit ratio and seed number per fruit were evaluated and compared to fruits derived from M7 x N9 and N9 x M7 crosses. No fruit set was obtained from self-pollination at anthesis, which confirms the self-incompatibility of both genotypes. Self-pollination after stigma excision was the best procedure, reaching average fruit set of 73.61 % (13 hours) and 81.94 %... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis; Pollination; Selfing; Endogamous progenies. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000400804 |
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| Ackermann,Markus; Weigend,Maximilian. |
| This is the first revision for the representatives of the genus Caiophora (Loasaceae) in Chile. The genus is widely distributed in the Andes from Argentina/Chile in the South to Central Ecuador in the North, and comprises approximately 60 species. In Chile only five species are present, Caiophora chuquitensis, C. cirsiifolia, C. coronata, C. deserticola sp. nov. and C. rosulata. Caiophora rosulata is here subdivided into two subspecies: western Andean C. rosulata subsp. rosulata (present in northern Chile and southern Peru), and eastern Andean C. rosulata subsp. taraxacoides, stat. and comb. nov. Furthermore C. superba syn. nov. and C. macrocarpa syn. nov. are placed into synonymy under C. chuquitensis, and C. rahmeri syn. nov. is synonymized to C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caiophora; Chile; Chromosome number; High Andean flora; Loasaceae; Morphology; Pollination; Taxonomy. |
| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932007000100005 |
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| Nihei,Silvio Shigueo; Schwarz,Elizabeth de Araujo. |
| On the first tachinid fly (Diptera, Tachinidae) carrying Asclepiadoideae pollinaria in the Neotropical Region. This paper reports the first Neotropical Tachinidae species possibly associated to pollination of Asclepiadoideae: a female of Euacaulona sumichrasti Townsend, 1908 (Diptera, Tachinidae, Phasiinae, Trichopodini) carrying pollinaria of Gonolobus parviflorus Decne., 1844 (Apocynaceae, Asclepiadoideae, Asclepiadeae: Gonolobinae) attached to its proboscis. The fly specimen was collected in Paraguay, Departamento Canindeyú. The pollinarium is illustrated and described herein. This represents the first anthophilous record to G. parviflorus and to the genus. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthophily; Apocynaceae-Asclepiadoideae; Euacaulona; Gonolobus; Pollination; Trichopodini. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000300021 |
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| Fronza,Diniz; Hamann,Jonas Janner; Both,Vanderlei; Anese,Rogério de Oliveira; Meyer,Evandro Alcir. |
| ABSTRACT: Given the increasing investment in the pecan production in southern Brazil, it becomes necessary researches, assisting in solve problems and proposition of technical and methodology to enhance this production chain. Thus, the present review aimed to survey the existing information about the culture, both on the world and the Brazilian scene. Issues related to botany, climate and soil requirements, alignment and planting density, cultivars, pests and diseases, among other technical aspects of this culture will be addressed. Pecan nut presents nutraceutical properties that are beneficial to human health, which has increased its demand from consumers. However, there are few research results with pecan nut in Brazil and there are many gaps in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carya illinoinensis (Wangenh.) K. Koch; Management; Pollination; Cultivars.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200201 |
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| González R,Cristián; Lemus S,Gamalier; Reginato,Gabino. |
| Pistillate flower abscission (PFA) severely affects walnut (Juglans regia L.) production, mainly of the cultivar Serr. A study on symptoms of flower abortion in walnut Serr, induced by excess or lack of pollen, was carried out following the evolution of flowers and peduncles. Hand pollinated flowers, with different pollen concentrations: 0, 1, 5, 25, 50 and 100% pollen diluted (w/w) in talcum powder, showed external and internal abortion symptoms. External symptoms were recorded directly from the tree, while for internal symptoms, flower excisions stained with blue Toluidin-O at 0.05%, were analyzed under an optical microscope. Excess pollen abortion produced flowers with rapid damage. The growth rate was very low, involucre brightness was lost and the... |
| Tipo: Journal article |
Palavras-chave: Lack of pollen; Excess of pollen; Pollination. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000200008 |
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| Toledo,Vagner de Alencar Arnaut de; Fritzen,Adriano Ernesto de Toledo; Neves,Carolina Antunes; Ruvolo-Takasusuki,Maria Claudia Colla; Sofia,Silvia Helena; Terada,Yoko. |
| The present study was carried out to survey the bees as visitors to melliferous flora in the region of Maringá, state of Paraná, Brazil. A total of 331 insects were captured, and the fauna comprised 39.88% Trigona spinipes, 38.37% Apis mellifera, 8.16% Tetragonisca angustula, 3.93% Halictidae, 1.21% Megachilidae, 2.42% Anthophoridae, and 3.32% other Hymenoptera. Eleven plant species from nine families were observed. The four families most frequently visited by A. mellifera were Pontederiaceae (93.53%), Sterculiaceae and Polygoniaceae (47.22%), Apocynaceae and Apiaceae (42.86%). The families most visited by T. spinipes were Lamiaceae (64.70%), Apocynaceae (57.14%), Sterculiaceae (51.85%) and Anacardiaceae (48.39%), and the families most visited by T.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bees; Pollination; Melliferous flora. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400025 |
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| Hoffmann,Magali; Pereira,Telma N. S.; Mercadante,Maria Beatriz; Gomes,André Raeli. |
| The yellow passion Passiflora edulis f. flavicarpa Deg. is allogamous, self incompatible, and it depends of insects pollinators to disseminate the pollen grains. The field work was conducted at Campos dos Goytacazes, Rio de Janeiro, Brazil, from October 17 to November 9 and December 12 to 21, 1995. It was analyzed 1565 flower buds, from which 423 showed well developed ovaries, five days after opening, this represents 27% of fruit set by natural pollination. It was observed 76,86 % of completely curved flowers, 21,22 % of partially curved flowers, and 1,92 % flowers without curvature. Five species of bees where observed on the flowers, from which two were the effective pollinator of yellow passion flower: Xylocopa (Megaxylocopa) frontalis (Olivier, 1789)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xylocopa; Passiflora; Pollination; Eastern Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212000000200002 |
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| Chiari, Wainer César; UEM; Toledo, Vagner de Alencar Arnaut de; Departamento de Zootecnia, Universidade Estadual de Maringá; Hoffmann-Campo, Clara Beatriz; Empresa Brasileira de Pesquisa Agropecuaria - Londrina; Rúvolo-Takasusuki, Maria Claudia Colla; UEM; Toledo, Tiago Cleyton Simões de Oliveira Arnaut de; UEM; Lopes, Tais de Sousa; UEM. |
| O objetivo deste estudo foi verificar a influência de Apis mellifera na produção de grãos e qualidade de sementes da soja transgênica Glycine max (L.) Merrill Roundup Ready™ e convencional. A soja transgênica foi plantada intercalada com a convencional, em 18 parcelas, em três tratamentos: gaiolas com abelhas A. mellifera, gaiolas sem abelhas e áreas descobertas, com livre visitação de insetos. Na soja transgênica, em três parcelas de cada tratamento, foi aplicado glifosato, 30 dias após a emergência. Os parâmetros analisados foram: produção de grãos; número de vagens por planta; peso de 100 sementes e porcentagem de germinação das sementes. Não houve diferença entre as cultivares, entretanto a produção de 2.757,40 kg há-1 obtida na área coberta... |
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Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal soja transgênica; Polinização; Apis mellifera; Glycine max; Roundup Ready™ 5.01.03.05-9 Melhoramento Vegetal Transgenic soybean; Pollination; Apis mellifera; Glycine max; Roundup Ready. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1787 |
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| Registros recuperados: 121 | |
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