Aluminum toxicity symptoms in peach seedlings

Journal Article · Mon Mar 01 04:00:00 EST 1976 · J. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:6353530

Edwards, J H; Horton, B D; Kirkpatrick, H C

Elberta (Prunus persica (L.) Batsch) peach seedlings were grown in nutrient solutions for 27 days with aluminum concentrations of 0, 222, 666 and 2000 ..mu..m concentration induced Al toxicity symptoms in leaves and severely restricted root growth. The early stage of Al toxicity was characterized by marginal chlorosis that later developed into necrotic areas that extended along the veins toward the midrib. Advanced stages of toxicity were characterized by collapse of the midrib, terminal dieback and defoliation of the seedlings which are typical symptoms of calcium deficiency in peaches. At high Al concentrations roots died back and new roots developed as irregularly shaped cylinders with constrictions and enlargements at the root apex.

• Research Organization: Dept. of Agriculture, Byron, GA
• OSTI ID: 6353530
• Journal Information: J. Am. Soc. Hortic. Sci.; (United States), Journal Name: J. Am. Soc. Hortic. Sci.; (United States) Vol. 101:2; ISSN JOSHB
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALINE EARTH METALS
ALUMINIUM
CALCIUM
DISTRIBUTION
ECOLOGICAL CONCENTRATION
ELEMENTS
FOOD
FRUITS
GROWTH
INHIBITION
INJURIES
LEAVES
METALS
NECROSIS
NUTRITIONAL DEFICIENCY
PATHOLOGICAL CHANGES
PEACHES
RESPONSE MODIFYING FACTORS
ROOTS
SEEDLINGS
TISSUE DISTRIBUTION
TOXICITY