Examples of self-pollinating plants include wheat, barley, rice, tomatoes and potatoes ... for many of our crops. A pollen grain starts to grow if it lands on the stigma of a flower of the ...

As spring advances and temperatures turn warmer, trees blossom and release pollen — the fine, yellow powder that covers cars, patios and other outdoor surfaces.

You might think flowers don't have much choice about who they mate with, given they are rooted to the ground and can't move.

Pollen grains range in size, and smaller pollen tends to spread using wind, says Marisa Thompson, an urban horticulturist at New Mexico State University. Larger pollen, on the other hand ...

A rotarod collects pollen grains and mold spores for a full day and is then examined under a microscope by pollen lab technicians. They examine the numbers and types of pollen grains. RELATED ...

Pollen grains have a hard coat that protects the sperm cells during their movement to the female sex organs in order to effect fertilization. Growth-derived mechanical conflicts between tissues ...

It’s almost over. Grains of pollen trapped in the delicate parachute strands of dandelion seed head in Cary, N.C. Scott Sharpe [email protected] Dr. Robert Bardon, associate dean for ...

Atlanta shattered a record on Saturday, March 29, when it recorded nearly 15,000 pollens grains per cubic meter of air. The previous record of 9,368 was blown away with the 14,801 reading by ...

Unseasonable heat has been known to increase pollen levels, which then aggravate sinuses allergic to those grains. WHEN SPRING HAS SPRUNG: When is the first day of spring in Houston? We have a few ...