Pollen Wettability as a Factor in Washout by Raindrops

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Science  13 Mar 1964:
Vol. 143, Issue 3611, pp. 1180-1181
DOI: 10.1126/science.143.3611.1180


Easily wettable pollen particles (contact angle θ < 90o) can be distinguished from poorly wettable particles (θ > 90o) by a simple laboratory test. Although some differences in degree of wettability were observed among the 15 pollens tested, all were wettable and most were strongly wettable. Grain wettability is not likely to suppress rain-scavenging efficiencies.