Results 131 to 140 of about 28,966 (260)
On the number of tubes touching a sphere or a tube
, 2006 A problem is formulated about how many unit-radius tubes can toucha ball of given radius from the outside and from the inside. Upper bounds for themaximum numbers of contacts are obtained for both interior and exterior contacts.It is also shown that the ...
Starostin, EL +2 more
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Entomologia Experimentalis et Applicata, EarlyView.Orius laevigatus engages in unidirectional intraguild predation on Transeius montdorensis. Despite this, both predators coexisted and suppressed the shared thrips prey. Aphids, a non‐shared prey, were effectively controlled by O. laevigatus even when its population was limited due to intraguild predation. T.
Angelos Mouratidis +3 more
wiley +1 more source
Geophysical Monograph Series, Page 263-304., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside +3 more
wiley +1 more source
Arabidopsis pollen TIPs involved in pollen tube elongation.
, 2009 Reproduction in flowering plants includes processes, like pollen germination and pollen tube elongation, where water and/ or solutes movements must be finely regulated. These regulations suggest the participation of aquaporins mediating water and solutes
Mazzella, Agustina +6 more
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An Improvised Medium for In vitro Pollen Germination and Pollen Tube Growth of Chickpea [PDF]
, 1997 Using pollen from a cold tolerant accession ICC8923, best results for pollen germination and pollen tube growth were obtained in medium containing 2.5% sucrose + 10% PEG + 100 mg boric acid + 300 mg calcium nitrate + 200 mg magnesium sulfate + 100 mg ...
Seetharama, N +2 more
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Entomologia Experimentalis et Applicata, EarlyView.Using DNA metabarcoding, this study investigates pollen transported by syrphids (Syrphidae) in the Dolomiti Bellunesi National Park and agricultural sites in Northern Italy. The analysis reveals a high diversity of visited plant taxa, including previously undocumented plant–pollinator interactions.
Serena Magagnoli +6 more
wiley +1 more source
Entomologia Experimentalis et Applicata, EarlyView.We studied predatory soil mites that control the thrips Frankliniella occidentalis. Thrips densities were significantly reduced by the predator Cosmolaelaps sabelisi. It presumably feeds on prepupae and pupae in the soil and on larvae aboveground.
Karen Muñoz‐Cárdenas +4 more
wiley +1 more source
EFFECT OF DIFFERENT FACTORS ON GERMINATION AND TUBE GROWTH OF Solanum sisymbrifolium LAM. POLLEN
Annals of Tropical Research, 1988 Both germination and tube growth of Solanum sisymbrifolium Lam. pollen require an optimum temperature of 25°C and a growth medium containing 100 ppm boric acid, 10% sucrose and 0.6% Bacto-agar. Pollen germination was stimulated by 5 and 10 ppm GA3, 1-10
K.M. Kuruvilla +3 more
doaj
Fast pollen tube growth in Conospermum species
, 2004 Background and Aims: An unusual form of pollen tube growth was observed for several Conospermum species (family Proteaceae). The rate of pollen tube growth, the number of tubes to emerge and the ultrastructure of these tubes are given here.
Kuo, J. +3 more
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BumbleBEEP: A Sensor System for Bumblebee Colony Monitoring
Entomologia Experimentalis et Applicata, EarlyView.We present a bumblebee colony monitoring system, BumbleBEEP. The system is fitted with thermometers and a custom weight sensor. These record data up to every 15 min, recording bumblebee brood nest temperature, environmental ambient temperature, and colony growth.
Nynke Blömer +5 more
wiley +1 more source