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Guttation\u00a0is NOT dew. Dew (condensation from vapour) would give no hint that the growing season had begun; guttation does.<\/p>\n
I have often marked the beginning of spring with a picture of guttation—to me the best indication that plants have begun to metabolize. It is a sign that the plant—in this case grass—is pumping xylem fluid from the roots to the leaves. During the day, such fluid is transpired. However, on a cold night, the stomata have closed and the fluid is extruded through the tip of the blade (at a hydathode) to give guttation.\u00a0<\/p>\n
On earlier occasions, I would often lie on the grass and take a macro image of the guttation drops<\/a>, each hanging from the tip of the grass blade. On this occasion, the striking nature of this backlit image was more compelling.\u00a0<\/p>\n Guttation: spring is underway. Guttation\u00a0is NOT dew. Dew (condensation from vapour) would give no hint that the growing season had begun; guttation does. I have often marked the beginning of spring with a picture of guttation—to me the best indication that plants have … Continue reading ![\"\"](\"https:\/\/blog.kootenay-lake.ca\/wp-content\/uploads\/2015\/04\/guttation150402s.jpg\")
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