Word: pollens
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Dates: during 1930-1939
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...reproduces by means of male sperm and female eggs. The sperm is produced and dispersed from the tassels at the top of the stalk; the eggs lurk at the base of the silk on each ear. In ordinary "open-pollinated" corn, fertilization occurs at random, the sperm-bearing pollen being carried to the silk by the wind. For inbreeding, the tassels and silk are protected by paper bags until maturity, and the plants are then self-pollinated by hand. These inbred strains become highly uniform. Finally, promising strains are crossed to combine advantages-long ears, full-kerneled ears, resistance...
...physicians know little more about hay fever than Dr. Holmes did, their attitude is more optimistic. To them the disease which annually sets 6,000,000 U. S. victims gasping is a common form of allergy: a bodily sensitivity to certain foreign substances such as eggs, milk, wheat, horsehair, pollen grains, banana oil. Once these substances get into the bloodstream of sensitive people, there ensue such violent reactions as hives, vomiting, blinding headaches, and what Henry Ward Beecher lovingly called "irrepressible sternutation" (sneezing...
Naphthalene acetic acid and naphthalene acetamide are two of the "growth substances" or hormone-like chemicals, which growers now use to stimulate root-sprouting, accelerate pollen production, etc. etc. Dr. Frank Easter Gardner and his co-workers at the U. S. Bureau of Plant Industry station in Beltsville, Md. decided to try these two naphthalene compounds as a spray to keep ripening apples from dropping. They sprayed ten varieties of apple trees just before crop maturity, were signally successful in preventing premature falls. In Science last week they reported that in tests on one troublesome variety ("Williams Early Red") only...
...Many plants are cross-fertilized, but by wind-borne or insect-borne pollen-the equivalent of sperm in men and animals...
Similar in effect to injections are the pollen pills first introduced by Detroit's Sherman Laboratories last spring. Ten days before he starts sneezing, the patient swallows a few pills, gradually increases the amount until his physician calls a halt. Medical opinion is now divided on the efficacy of the pills, some physicians holding that the pills cause serious upsets in the digestive system...