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Thursday, March 30, 2017

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Lead harms seed germination & growth of Albizia lebbeck (L.) Benth. and Prosopis juliflora (SW.) DC.

Khurshid Anwar, Aqsa Nadeem, Yamin Bibi, Farwa Iftikhar, Noshin Ilyas, Ghulam Yaseen and Muhammad Kabir


Lead produced significant (p<0.05) effects on various growth parameters of A. lebbekand P. juliflora i.e., root, shoot, seedling length, number of leaves, leaf area and seedling biomass. The seeds of A. lebbeck exhibited germination at 0ppm, 10pm, 20ppm and 30ppm in lab. Lead treatments at control to 10, 20, and 30ppm reduced the percentage of seed germination from 92% to 77% respectively in P. juliflora. Number of leaves, leaf area and biomass of both seedlings exhibited significant (p<0.05) decrease when treatments of lead were increased from 20 ppm to 30 ppm. Lead treatments of 25, 50 and 75 ppm were also carried out in pot experiment. Lead treatments at 75 ppm demonstrated much reduction in growth as compared with control. The rise in absorption of lead directly effects shoot growth and root length is also reduced. But at 25 ppm shoot growth of A. lebbeck was better than control but shoot growth of P. juliflora was reduced. The shoot length was much reduced by increase in concentration of lead. The seedlings grown in control soils have better growth as compared with lead treated soils. The increase in concentration of lead decreases the seedling size. The seedlings which were treated with the 25ppm and 50 ppm were almost of same size but 75 ppm caused much reduction in both seedlings growth. Increased concentration of lead reduced the dry weight. General fallouts of different limits showed that lead is much toxic element, which caused much reduction in seed germination and growth of both A. lebbeck and P. juliflora.

To Cite this article: Anwar, K., A. Nadeem, Y. Bibi, F. Iftikhar, N. Ilyas, G. Yaseen and M. Kabir. 2022. Lead harms seed germination & growth of Albizia lebbeck (L.) Benth. and Prosopis juliflora (SW.) DC. Pak. J. Bot., 54(1): DOI:

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