premature abscission

premature abscission: преждевременное опадение листьев в результате загрязнений воздуха

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Abscission — (from Latin abscindere, from ab ‘off, away’ + scindere ‘to cut’) is the shedding of a body part. It most commonly refers to the process by which a plant intentionally drops one or more of its parts, such as a leaf, fruit, flower or seed, though… … Wikipedia
Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… … Wikipedia
Auxin — Auxins are a class of plant growth substance (often called phytohormone or plant hormone). Auxins play an essential role in coordination of many growth and behavioral processes in the plant life cycle.OverviewAuxins derive their name from the… … Wikipedia
Plant disease symptoms — ▪ Table Plant disease symptoms description and causes examples prenecrotic symptom expression that precedes the death of cells or the disintegration of tissues water soaking a water soaked, translucent condition of tissues caused by water moving… … Universalium
Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis … Wikipedia

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