TY - JOUR
T1 - Influence of Heavy Metals on Seed Germination and Seedling Growth of Wheat, Pea, and Tomato
AU - Baruah, Nijara
AU - Mondal, Subham C.
AU - Farooq, Muhammad
AU - Gogoi, Nirmali
N1 - Funding Information:
We are gratified to the Department of Environmental Science and Sophisticated Analytical Instrument Centre (SAIC), Tezpur University, Assam, India, for providing the required instrumentation facilities for this study.
Publisher Copyright:
© 2019, Springer Nature Switzerland AG.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Experiments were conducted under lead (Pb), cadmium (Cd), and copper (Cu) exposure to observe germination and seedling growth of wheat (Triticum aestivum L), pea (Pisum sativum), and tomato (Solanum lycopersicum L.). Metals were applied in five concentrations (20, 65, 110, 175, and 220 ppm) and Hoagland solution was used to feed the seedlings. Irrespective of the tested crop seeds, copper revealed maximum effect (51.2%) on germination followed by lead (47.5%) and cadmium (35.3%). Tomato seeds were most sensitive in germination stage followed by pea and wheat. In seedling stage, tomato also showed highest sensitivity to both Cd and Cu. However, pea seedlings showed higher tolerance to Pb and wheat seedlings had the highest tolerance to both Cu and Cd. Toxicity and tolerance of metals was found to vary with crops and growth stages. Higher transfer of metals (Pb, Cd, and Cu) in wheat seedling indicates higher risk of food chain contamination when grown in polluted soil. Higher mobility and uptake of Cd in tomato and wheat seedlings even under lower concentration of exposure needs further study.
AB - Experiments were conducted under lead (Pb), cadmium (Cd), and copper (Cu) exposure to observe germination and seedling growth of wheat (Triticum aestivum L), pea (Pisum sativum), and tomato (Solanum lycopersicum L.). Metals were applied in five concentrations (20, 65, 110, 175, and 220 ppm) and Hoagland solution was used to feed the seedlings. Irrespective of the tested crop seeds, copper revealed maximum effect (51.2%) on germination followed by lead (47.5%) and cadmium (35.3%). Tomato seeds were most sensitive in germination stage followed by pea and wheat. In seedling stage, tomato also showed highest sensitivity to both Cd and Cu. However, pea seedlings showed higher tolerance to Pb and wheat seedlings had the highest tolerance to both Cu and Cd. Toxicity and tolerance of metals was found to vary with crops and growth stages. Higher transfer of metals (Pb, Cd, and Cu) in wheat seedling indicates higher risk of food chain contamination when grown in polluted soil. Higher mobility and uptake of Cd in tomato and wheat seedlings even under lower concentration of exposure needs further study.
KW - Bioaccumulation
KW - Germination
KW - Metal stress
KW - Pea
KW - Tomato
KW - Wheat
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U2 - 10.1007/s11270-019-4329-0
DO - 10.1007/s11270-019-4329-0
M3 - Article
AN - SCOPUS:85075156906
SN - 0049-6979
VL - 230
JO - Water, Air, and Soil Pollution
JF - Water, Air, and Soil Pollution
IS - 12
M1 - 273
ER -