Results 201 to 210 of about 85,082 (257)
Flowering and Flower Maturation in Valley Oak <i>Quercus lobata</i>. [PDF]
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2019
The Nigerian Field, 56 (3-4), 163 ...
Adebisi SowuEmi, M, Awosina, Esther O
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The Nigerian Field, 56 (3-4), 163 ...
Adebisi SowuEmi, M, Awosina, Esther O
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Simulation and analysis of pollen coronas
Applied Optics, 1994By numerical simulation of light scattering by birch and pine pollen grains, we create color plates of coronas with vertical elliptical shapes and strong brightenings, respectively. The shape of the pollen is modeled by the union of n ellipsoids. The Fraunhofer integral is solved by the use of the fast Hartley transform. The sensitivity of the patterns
E, Tränkle, B, Mielke
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Culture of Pollen Tubes for Chromosomal Analysis at the Pollen Tube Division
Stain Technology, 1953It is possible to grow pollen tubes routinely for cytological analysis of nuclei at the pollen tube division. Pollen has been grown successfully after temperature, pressure, gas, moisture, and radiation treatments. The technic for growing Tradescantia pollen is described, but any method is satisfactory which ensures that: (a) the pollen is kept dry ...
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On the theory of pollen analysis
American Journal of Science, 1963A consideration of the theoretical relationship between vegetational percentages and the percentages of pollen in sediments makes it obvious that where species differ in the amounts of pollen they contribute to sediments, pollen diagrams cannot be interpreted quantitatively by means of traditional methods.
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Proceedings of the Prehistoric Society, 1982
Samples for pollen analysis were cut from freshly cleaned excavation sections. They were taken at one or two centimetre intervals through the buried soils and the reave bank. Towards the top of each section samples were taken at five centimetre intervals.The position of each of the sample columns taken is recorded on the drawn sections in the ...
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Samples for pollen analysis were cut from freshly cleaned excavation sections. They were taken at one or two centimetre intervals through the buried soils and the reave bank. Towards the top of each section samples were taken at five centimetre intervals.The position of each of the sample columns taken is recorded on the drawn sections in the ...
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Bee World, 2005
In the last issue of Bee World, Peter Martin, chairman of HIPA, reported on the importance of pollen analysis for beekeeping and trade.
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In the last issue of Bee World, Peter Martin, chairman of HIPA, reported on the importance of pollen analysis for beekeeping and trade.
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