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S. Vijayakumar

Publications (4)

Ecological Assessment of Zooplankton Abundance and Distribution in Hanjagi Lake, Vijayapura, India

S. Vijayakumar, Abhishek Kenganal, Vijay S Atnur & Chandrakant Lingadhal · Journal of Advances in Biology & Biotechnology · 2026

The present study investigated the seasonal dynamics of zooplankton diversity, density, and biomass in Hanjagi Lake, Vijayapura District, Karnataka, over one year (June 2024–May 2025). Zooplankton samples were collected seasonally from five stations by filtering 100 L of surface...

Open access Research Article 10.9734/jabb/2026/v29i33756

Seasonal Dynamics and Ecological Assessment of Zooplankton Community Structure in Baratagi Lake, Vijayapura, Karnataka, India

S. Vijayakumar, Abhishek Kenganal, Chandrakant Lingadhal & Vijay S. Atnur · Journal of Advances in Biology & Biotechnology · 2026

Background: Zooplankton play a crucial role in freshwater ecosystems by linking primary producers to higher trophic levels and serving as sensitive bioindicators of environmental change. However, increasing anthropogenic pressures and eutrophication in lentic water bodies threate...

Open access Research Article 10.9734/jabb/2026/v29i33744

Response of Nutrient uptake of Chrysanthemum var. Marigold through Phenophase-based Irrigation and Fertigation

S. Vijayakumar, Sujatha Anil Nair, Kalaivanan, D & Theresa, K · Annual Research & Review in Biology · 2025

The study aims to investigate the response of nutrient uptake in chrysanthemum (Dendranthema x grandiflora Tzelev.) var. Marigold to phenophase-based irrigation and fertigation. The study was conducted at the Division of Flower and Medicinal Crops at ICAR-Indian Institute of Hort...

Open access Research Article 10.9734/arrb/2025/v40i42233

Assessment of Shelf life of Chrysanthemum (Dendranthema x grandiflora Tzelev.) var. Marigold Flowers as Influenced by Phenophase Based Irrigation and Nutrition Schedule

S. Vijayakumar, Sujatha A. Nair, Rajiv Kumar & T. Usha Bharathi · International Journal of Plant & Soil Science · 2023

The present investigation was conducted in the Division of Flower and Medicinal Crops at the ICAR-Indian Institute of Horticultural Research, Bengaluru, to evaluate the influence of phenophase based irrigation and fertigation schedules on shelf life of chrysanthemum (Dendranthema...

Open access Research Article 10.9734/ijpss/2023/v35i183463