Results 31 to 40 of about 3,809 (171)
Foram analisadas 42 amostras de pólen apÃcola desidratado, procedentes de sete diferentes estados brasileiros (Rio Grande do Sul, Santa Catarina, Paraná, São Paulo, Minas Gerais, Sergipe e Bahia) e do Distrito Federal, quanto à s propriedades fÃsico-quÃmicas, sujidades macro e microscópicas e microbiológicas, assim como a verificação da ...
LÃdia Maria Ruv Carelli Barreto +2 more
openaire +4 more sources
EVALUATION OF FLORAL CHARACTERISTICS OF MELON HYBRIDS (Cucumis melo L.) IN POLLINATOR ATTRACTIVENESS
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,
LÚCIA HELENA PIEDADE KIILL +4 more
doaj +1 more source
Foi estudada, na região de Botucatu, SP, 110 perÃodo de agosto a dezembro de 1996, a coleta de pólen por abelhas africanizadas e sua influência na produção de mel e própolis. A coleta de pólen, por colmeia, foi de 1,47± 0,88kg. As produções de mel nas colmeias sem e com coletor de pólen foram de 17,0±7,5 kg e de 12,3±3,4 kg ...
SÃlvia Regina Cunha Funari +4 more
openaire +5 more sources
Wir zeigen, dass hybridisierte dsDNA eine senkrechte Ausrichtung zu SWCNTs einnimmt, und präsentieren eine abstandsabhängige Übertragung der Energie von Fluoreszenzfarbstoffen auf SWCNTs. Der Energietransfer von Kohlenstoffnanoröhren (CNET) folgt einer d−5‐Abhängigkeit mit einem charakteristischen Abstand von 7,4 nm (± 0,7 nm) für 50 % Energietransfer.
Izabela Kamińska +7 more
wiley +1 more source
Lebah tanpa sengat pada umumnya menghasilkan produk madu, selain itu juga terdapat serbuk sari yang dapat dikaji pada ilmu melissopalinologi untuk mengidentifikasi morfologi polen, jenis serta geografis dari tumbuhan. Polen atau serbuk sari juga dapat
Ryan Triyadi +2 more
doaj +1 more source
<p align="justify"> A descoberta de que certos alimentos podem prevenir doenças iniciou uma revolução nas áreas de nutrição, farmácia, medicina e ciência de alimentos. Dentro deste contexto, o pólen apÃcola é considerado uma excelente fonte nutricional benéfi ca a saúde, principalmente pela presença de compostos fenólicos com ...
SOLANGE TERESINHA CARPES +4 more
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Die Arktis bei 2,7 Grad globaler Erwärmung: Schwindende Landschaften
Eine dicke Eisschicht auf dem Ozean, hunderte Meter tief gefrorener Boden und ein über 3 000 m hoher Eisschild – diese einzigartige Landschaft wird es vermutlich so in Zukunft nicht mehr geben. Eine globale Erwärmung von 2,7 °C, auf die wir aktuell zusteuern, würde die Arktis bis zur Unkenntlichkeit verändern.
Céline Giesse
wiley +1 more source
This study presents paleoenvironmental data based on pollen, elemental and isotopic compositions of organic matter (TOC, N, d13C and d15N) and 14C dating of 170 cm lake sediment record.
Luiz C.R. Pessenda +6 more
doaj +1 more source
Holoendoparasites are extremely rare plants that live entirely hidden inside their hosts, with only flowers and fruits visible. We studied Apodanthes caseariae, found in central and South America, parasitizing Casearia sylvestris. Little is known about its life cycle.
Jessica A. Ramírez‐Ramírez +4 more
wiley +1 more source
The effects of flower supplementation on pollinators and pollination along an urbanisation gradient
Enhancing urban greenspaces for pollinator communities by planting flower patches is increasingly common, but their efficacy for different groups of insects (bees, hoverflies and moths) is unclear. Our city‐scale experiment demonstrated that the effect of flower patches on pollinators is complex, and direct benefits to specific insects are difficult to
Emilie E. Ellis +2 more
wiley +1 more source

