Abstract            Volume:14  Issue-3  Year-2026         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

The present study was conducted to assess the toxicological effects of lead nitrate on morphological traits of Pisum sativum L. using varieties IPF-99-25 (Adarsh) and IPFD-1-10 (Prakash) in M₁ and M₂ generations. The healthy seeds of both varieties of Pisum sativum were treated with 0.1%, 0.2%, 0.3%, 0.4% and 0.5% concentration of Lead nitrate before sowing in the experimental field. The obtained plants were considered as M₁ generation. The seeds obtained from M₁ generation were further treated with corresponding concentration of Lead nitrate and sown in experimental plot to obtain M₂ generation. Seeds were treated with 0.1 to 0.5% concentrations of lead nitrate prior to sowing. Observations revealed that seed germination, seedling survival, plant height and number of branches declined progressively with increasing concentrations. Delay in flowering and slight extension in harvesting period are also recorded at higher doses. Effects were mild at lower concentrations (0.1–0.2%) but became markedly adverse above 0.2% indicating a threshold for toxicity. At 0.5% treatment concentration, the reduction in seedling survival, height of the plants declined upto 36%. while no. of branches declined upto 51%. These findings clearly reflect the toxic impact of lead nitrate on germination and vegetative growth features of Pisum sativum.

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