P. Sumathi

Machine Learning Techniques for Classification and Prediction of Pink Bollworm (Pectinophora gossypiella) Incidence Using Weather Variables at Guntur in Andhra Pradesh, India

B. V. R. Ch. Ravi Kumar, B. Ravindra Reddy, L. Rajesh Chowdary & P. Sumathi · Journal of Experimental Agriculture International · 2026

Pink bollworm, Pectinophora gossypiella, is an important insect pest of cotton that affects yield and fibre quality. The present study evaluated machine learning techniques for classifying and predicting pink bollworm incidence using weather variables at Guntur, Andhra Pradesh. S...

Open access Research Article 10.9734/jeai/2026/v48i74340

Infrared Thermometry Studies for Estimation of Crop Water Stress Index

Preeti Sajjan, M. V. Ramana, K. Krupavathi & P. Sumathi · International Journal of Environment and Climate Change · 2023

An IR thermometry enables non-contact temperature measurements of the crop canopy, capturing infrared radiation emitted by objects without physical contact, which is beneficial for accurate Crop Water Stress Index (CWSI) estimation as it minimizes interference and temperature rea...

Open access Research Article 10.9734/ijecc/2023/v13i103106

Influence of Deficit Irrigation on Biometric Parameters of Capsicum Crop under Polyhouse Conditions

Jaripiti Trivikrama Raju, G. Muralee Krishna, H. V. Hema Kumar & P. Sumathi · International Research Journal of Pure and Applied Chemistry · 2020

The influence of different deficit irrigations on capsicum crop biometric parameters and fruit yield were assessed in an experiment the variety ‘Indra’ was tested using completely randomized block design with three deficit irrigations (0.50, 0.75 and 1.0 ETC) and 5 replications i...

Open access Research Article 10.9734/irjpac/2020/v21i2430375