THE VARIABILITY IN SETTLING VELOCITIES OF SOME POLLEN AND SPORES

被引：92

作者：

DIGIOVANNI, F

KEVAN, PG

NASR, ME

机构：

[1] Climate Processes and Earth Observation Research Division, Climate Research Branch, Atmospheric Environment Service C.A.R.E, Guelph, ON, NIH 7G6

[2] Department of Environmental Biology, University of Guelph, Guelph, ON

来源：

GRANA | 1995年 / 34卷 / 01期

关键词：

D O I：

10.1080/00173139509429031

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The settling Velocity in still air of natural and dyed spores and pollen of several species was measured using the method of McCubbin and was found to be as follows (in cm s(-1)): black spruce (Picea mariana), 3.19; jack pine (Finns banksiana), 2.53; Lycopodium, 2.31; dyed Lycopodium, 2.15; oil palm (Elaeis guineensis), 3.00; dyed oil palm, 2.16 and corn(Zea Mays), 30.95. The percentage of clustered spores and pollen was taken into account but was not found to significantly affect settling velocity except in the case of dyed oil palm. Comparisons of the measured settling velocities of clustred grains were made with the model of Ferrandino and Aylor. This was found to be accurate in general, but tended to over-estimate the settling velocity of clumped spores of Lycopodium and of dyed pollen of oil palm.

引用

页码：39 / 44

页数：6