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N. R. G. Varma

Publications (9)

A Comparative Study of Manual and Drone-based Granular Insecticide Application Impact on Beneficial Population Dynamics in Rice

Kolli Bharghavi, N. R. G. Varma, C. Narendra Reddy, P. Rajaiah & T. Kiran Babu · Journal of Advances in Biology & Biotechnology · 2025

Aim: Evaluation of the effects of application of granular insecticides manually vis a vis drone on coccinellids and spiders in rice fields. Place and Duration of Study: Main Farm, Agricultural Research Institute, Professor Jayashankar Telangana Agricultural University (PJTAU), Ra...

Open access Research Article 10.9734/jabb/2025/v28i62469

Thifluzamide 24% SC: A Cost Effective Fungicide for Managing Sheath Blight of Rice

T. Kiran Babu, N. R. G. Varma, Ch. Damodar Raju & P. Raghu Rami Reddy · Journal of Experimental Agriculture International · 2025

Sheath blight caused by Rhizoctonia solani is a significant soil-borne disease of rice prevalent in all rice-growing regions of Telangana state, resulting in significant yield losses up to 50%. Owing to non-availability of resistance sources, fungicide application has become the...

Open access Research Article 10.9734/jeai/2025/v47i53396

Studies of Farmer Participatory on Machine Transplanting of Rice

P. Spandana Bhatt. P., P. Raghu Rami Reddy, N. R. G. Varma, T. K. Babu & Parimal Kumar · International Journal of Environment and Climate Change · 2023

Front line demonstration on machine transplanting of rice were organised in Telangana state. A total of 20 Front Line demonstrations were organized in 20 ha. Best management practices of Rice production were demonstrated for getting higher net returns in both machine transplanted...

Open access Research Article 10.9734/ijecc/2023/v13i123737

Assessment of Pesticide Mixtures for Unmanned Aerial Spraying in Rice: A Physical Compatibility Perspective

Sreenath Ragiman, Kiran Babu Talluri, N. R. G. Varma, B. Vidya Sagar & G. Uma Devi · International Journal of Environment and Climate Change · 2023

The use of drone spraying technology has shown great promise in overcoming the limitations of manual spraying in agriculture. However, ensuring the physical compatibility of pesticide mixtures for drone applications remains a crucial aspect. In this study, we conducted an experim...

Open access Research Article 10.9734/ijecc/2023/v13i92517

Studies on Non-preference Mechanism and Biochemical Aspects of Resistance to BPH Nilaparvata lugens (Stal.) on Resistant Rice Genotypes

M. Udayasree, P. Rajanikanth, N. R. G. Varma & M. Sreedhar · Current Journal of Applied Science and Technology · 2020

Aims: To conduct studies on non-preference mechanism and biochemical aspects of resistance to BPH on resistant rice genotype. Study Design: Completely Randomized Design. Place and Duration of Study: Poly-house, Department of Entomology, Rice Research Centre, Agriculture Research...

Open access Research Article 10.9734/cjast/2020/v39i530540

Phenotypic Screening of Elite Rice Germplasms against Brown Planthopper [Nilaparvata lugens (Stal.)] for Identification of Resistant Donor Lines

M. Nikhil Raj, P. Rajani Kanth, N. R. G. Varma & M. Balram · Current Journal of Applied Science and Technology · 2019

Aims: To identify Brown Planthopper (BPH) resistant rice genotypes and categorize all the test entries based on their level of resistance against BPH. Study Design: Completely Randomized Design. Place and Duration of Study: Poly-house, Department of Entomology, Rice Research Cent...

Open access Research Article 10.9734/cjast/2019/v37i430300

Raising of Farm Friendly Mat Nursery for Machine Transplanting of Rice

P. Spandana Bhatt, M. V. Ramana, P. Raghu Rami Reddy, N. R. G. Varma, . Krishna & Y. C. Mohan · International Journal of Environment and Climate Change · 2022

Mechanized rice cultivation can play a vital role in transforming rice production. In the context of labour shortage and growing commercialization of agriculture, mechanization is very important for ensuring timeliness and precision of operation. Mechanized transplanting is a key...

Open access Research Article 10.9734/ijecc/2022/v12i830727

Antibacterial Activity of Essential Oils against Xanthomonas oryzae pv. oryzae Causing Bacterial Leaf Blight of Rice

Rajesh Kampa, Kiran Babu Talluri, G. S. Laha, Y. Chandra Mohan, N. R. G. Varma & S. N. C. V. L. Pushpavalli · Journal of Scientific Research and Reports · 2026

Bacterial leaf blight (BLB) of rice, caused by Xanthomonas oryzae pv. oryzae (Xoo), is a major constraint to rice production in tropical and subtropical regions. The common practice of applying antibiotics along with copper-based fungicides for BLB management has resulted in envi...

Open access Research Article 10.9734/jsrr/2026/v32i64279

Antibacterial Activity of Plant Extracts against Xanthomonas oryzae pv. oryzae Causing Bacterial Leaf Blight in Rice

Rajesh Kampa, Kiran Babu Talluri, G. S. Laha, Y. Chandra Mohan, N. R. G. Varma & S. N. C. V. L Pushpavalli · Journal of Advances in Biology & Biotechnology · 2026

Bacterial leaf blight, caused by Xanthomonas oryzae pv. oryzae (Xoo), is an important rice disease that can reduce crop productivity under favourable conditions. This study evaluated the antibacterial activity of selected aqueous plant extracts against Xoo under in vitro conditio...

Open access Research Article 10.9734/jabb/2026/v29i64050