Survival

Atrazine-Induced Impairment of Fecundity and Fertilization in Exposed Adult Clarias gariepinus: Consequences for Hatchability and Larval Survival

This research investigates the impact of atrazine, a widely used herbicide, on the reproductive capabilities of adult Clarias gariepinus, a freshwater catfish of ecological and economic significance. Twelve months old specimens of C. gariepinus comprising of twenty (20) males and twenty (20) females with mean average weight of 1024 ± 88.4g and 1100 ± 97.4g respectively and mean total length of 52.8 ± 2.3cm and 52.7 ± 1.1cm respectively, were exposed to exposed to four different sub-lethal concentrations of atrazine (40µg/L, 60µg/L, 80µg/L, and 100µg/L) in a semi-static renewal assay.
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Preliminary Study on the Effect of Different Concentrations of EMS on Two Pigeon Pea (Cajanus cajan L. Millsp.) Accessions

In the present study, seeds of Pigeon pea (Cajanus cajan L. Millspaugh) accessions (Brown and Cream colours) were treated with different concentrations of Ethyl methane sulphonate (0.0 %, 0.01 %, 0.02 %, 0.03 %, 0.04 %, 0.05 %, 0.06 % and 0.07 %). The seeds were sown and monitored for 30 days. Data obtained showed a trendy effect. Data obtained showed that germination percentage was decreased with an increase in the mutagen concentration when compared with the control.

Preliminary Study on the Effect of Different Concentrations of EMS on Two Pigeon Pea (Cajanus cajan L. Millsp.) Accessions

In the present study, seeds of Pigeon pea (Cajanus cajan L. Millspaugh) accessions (Brown and Cream colours) were treated with different concentrations of Ethyl methane sulphonate (0.0 %, 0.01 %, 0.02 %, 0.03 %, 0.04 %, 0.05 %, 0.06 % and 0.07 %). The seeds were sown and monitored for 30 days. Data obtained showed a trendy effect. Data obtained showed that germination percentage was decreased with an increase in the mutagen concentration when compared with the control.