L. Umamaheswari

A Comparative Economic Assessment of Certified Organic (Traditional and HYV) Rice and Inorganic Rice Cultivation in Pudukkottai District of Tamil Nadu, India

M. Vinoth, L. Umamaheswari, K. R. Karunakaran, A. Pouchepparadjou, N. Swaminathan, S. Parthasarathi & C. Aroutselvam · Journal of Experimental Agriculture International · 2026

Aim: Rice is a critical crop for a nation's food security. The study estimated the costs and returns, production function, resource-use efficiency, and constraints in certified organic traditional, certified organic HYV, and inorganic rice cultivation using primary data collected...

Open access Research Article 10.9734/jeai/2026/v48i94450

Export Performance of Sugar from India: Growth, Instability, and Market Diversification Using Markov Chain Analysis

C. Aroutselvam, A. Pouchepparadjou, R. Sendhil, L. Umamaheswari & M. Vinoth · Journal of Economics, Management and Trade · 2026

India is a major producer of sugar, and the stability and destination structure of its exports are important for understanding trade performance. This study evaluates India’s sugar export performance using growth and instability measures together with Markov chain analysis. Expor...

Open access Research Article 10.9734/jemt/2026/v32i91469

Climate Change Risk Meets Resource Inefficiency: A Multi-method Assessment of Thanjavur's Rice Economy

C. Aroutselvam, A. Pouchepparadjou, R. Sendhil, L. Umamaheswari, N. Swaminathan & M. Vinoth · International Journal of Environment and Climate Change · 2026

Rice cultivation in Thanjavur district faces interacting climatic, water, labour, and production-efficiency constraints. This study assessed these dimensions through an integrated multi-method framework. Primary data were collected from 120 rice farmers between October 2025 and F...

Open access Research Article 10.9734/ijecc/2026/v16i95622