Effect of zinc management under elevated CO2 and temperature on growth and yield of rice (Oryza sativa L.)

Abstract

A pot culture experiment was carried out out in the phytotron facility at ICAR-Indian Agricultural Research Institute, Pusa, New Delhi, where the effect of environmental conditions and zinc management strategies (Treatments) on the growth and yield of zinc-efficient rice genotype under zinc-deficient condition wase evaluated. The experiment was laid out using factorial CRD design with three replications. Plant height, leaf greenness, shoot mass, root mass and grain yield were reported significantly higher under elevated CO2 and temperature condition than ambient CO2 and temperature condition. All the treatments showed significantly higher results over the control irrespective of the environmental conditions. Best results obtained in the treatment T8, T2 and T6 which were statistically at par majority of the cases and signifies integrated use of organic acid, zinc sulphate and FYM may effectively manage zinc deficiency in rice field under climate change scenario.