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ARS Home Office of Communications Images Photos Feb08





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Image Number D1015-10 Heat-tolerant cotton flower. (Compare to heat-sensitive/heat-sterile flower in D1016-2.) The heat-tolerant flower (shown here) exhibits long filaments and normal pollen development, producing fluffy-appearing pollen sacs. In contrast, the heat-sterile/heat-sensitive flower (shown in D1016-2) exhibits shortened filaments, flat pollen sacs, and no pollen grains.  Photo by Stephen Ausmus.  640 pixels wide: (d1015-10.jpg)   Please visit our Image Gallery


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