Skip to content
R

R. Shravan Kumar

Publications (11)

Monitoring of Virulence of Gall Midge (Orseolia oryzae Wood-mason) Population on Rice

R. Shravan Kumar, Y. Hari, U. Nagabhushanam, V. Venkanna, B. Madavi, Ch. Anusha, D. Aswini, K. Rajendra Prasad, B. Satish Chandra, G. Neelima & R. Uma Reddy · Journal of Advances in Biology & Biotechnology · 2024

A study was conducted for two years during 2022 and 2023 at Regional Agricultural Research Station, Warangal, Telangana, India to know the virulence of gall midge on rice varieties with known gall midge resistant genes at Warangal. During both the years i.e., 2022 and 2023, the v...

Open access Research Article 10.9734/jabb/2024/v27i91418

Phenotypic Screening of Rice Cultures for Resistance against Brown Plant Hopper (Nilaparvata lugens Stal) at Warangal, India

R. Shravan Kumar, Y. Hari, K. Rajendra Prasad, B. Satish Chandra, U. Nagabhushanam, B. Madavi, G. Neelima, D. Ashwini, V. Venkanna & R. Uma Reddy · Journal of Advances in Biology & Biotechnology · 2024

Brown planthopper (BPH), Nilaparvatalugens Stal (Homoptera: Delphacidae), is one of the most destructive insect pests causing significant yield losses in rice production. During Kharif, 2021, a set of 91 rice cultures were screened against brown plant hopper (BPH) through standar...

Open access Research Article 10.9734/jabb/2024/v27i91279

Phenotypic Screening of Rice Genotypes against Gall Midge, Orseolia oryzae (Wood- Mason) in Warangal, Telangana, India

S. Malathi, R. Shravan Kumar, A. P. Padmakumari & B. Satish Chandra · Journal of Experimental Agriculture International · 2026

The Asian rice gall midge, Orseolia oryzae (Wood-Mason), is a major endemic insect pest in the Warangal region of Telangana, causing substantial yield losses in rice cultivation. The present investigation was carried out during the Kharif season of 2019 at the Regional Agricultur...

Open access Research Article 10.9734/jeai/2026/v48i54250

Phenotypic Screening of Promising Rice Cultures for Resistance against Brown Plant Hopper (Nilaparvata lugens Stal) under Field and Glass House Conditions

P. Maina, R. Shravan Kumar, Ch. Anusha & Y. Hari · Journal of Advances in Biology & Biotechnology · 2025

Aim: The aim of this study was to find out the resistant rice cultures through screening against BPH under field and glass house conditions. Study Design: Field screening was carried out in RBD design with two replications whereas glass house screening was done by following Stand...

Open access Research Article 10.9734/jabb/2025/v28i82814

Genetic Validation of Promising Warangal Rice Cultures for Gall Midge Resistance Using Functional Markers

Ch. Jahnavi, R. Shravan Kumar, Y. Hari, Ch. Anusha & K. Anusha · Journal of Scientific Research and Reports · 2024

The experiment was conducted during Rabi 2023-24 at Regional Agricultural Research Station, Warangal. The Asian gall midge Orseolia oryzae is one of the major pests of rice which is causing significant economic loss to the crop. Thirty nine rice cultures along with resistant chec...

Open access Research Article 10.9734/jsrr/2024/v30i92327

Biochemical Defense Responses in Advanced Backcross-derived Rice Genotypes to Nilaparvata lugens (Stal) Infestation

R. Prathima Kumari, Ch. Anusha, R. Shravan Kumar, K. Rajendra Prasad, Y. Hari, M. A. Prajwal Gowda & D. Akhilandeshwari · Journal of Advances in Biology & Biotechnology · 2024

BPH, Nilaparvata lugens (Delphacidae: Homoptera) infestation on most of the resistant and moderately resistant backcross derived rice genotypes and resistant checks (PTB 33 and BM 71) resulted in an increase in the phenolic content in the infested plants leaf sheath. The percenta...

Open access Research Article 10.9734/jabb/2024/v27i81156

Molecular and Phenotypic Confirmation of Advanced Breeding Lines for Gall Midge Resistance in Rice (Oryza sativa L.)

A. Sravani, Y. Hari, V. Venkanna & R. Shravan Kumar · Journal of Advances in Biology & Biotechnology · 2026

The Asian Rice Gall Midge is one of the most important pests of rice, causing substantial yield losses in major rice-growing regions. WGL-962 (Warangal Vari-2) is a high-yielding, short-duration rice variety with medium slender grains; however, it is susceptible to gall midge inf...

Open access Research Article 10.9734/jabb/2026/v29i64021

Unravelling Genetic Divergence and Trait Dynamics in Rice (Oryza sativa L.) Genotypes through Multivariate Analysis

B. Satish Chandra, Y. Hari, G. Neelima, R. Shravan Kumar, Ch. Damodar Raju & R. Uma Reddy · Journal of Experimental Agriculture International · 2026

Rice is a vital staple crop, especially in Asia and India, but its sustainable production is threatened by population growth, limited resources, and climate change. Genetic diversity and divergence analysis are essential in rice breeding, as they enable the development of high-yi...

Open access Research Article 10.9734/jeai/2026/v48i44188

Evaluation of Certain Granular and Foliar Insecticides Against Rice Gall Midge, Orseolia oryzae (Wood-Mason)

D. Bhavana, S. Malathi, N.R.G. Varma, R. Shravan Kumar & T. Kiran Babu · Journal of Advances in Biology & Biotechnology · 2025

Among the rice insect pests, gall midge, Orseolia oryzae (Wood-Mason) damage the crop during the early vegetative stage. The rice gall midge has been reported as the pest of rice from several Asian countries like Bangladesh, China, India, Indonesia, Myanmar, Nepal, Sri Lanka, Tha...

Open access Research Article 10.9734/jabb/2025/v28i32121

Genetic Variability Studies for Yield and Yield Attributing Traits in Rice (Oryza sativa L.) Genotypes

K. Anusha, B. Srinivas, Y. Hari, V. Gouri Shankar, S. Omprakash & R. Shravan Kumar · Journal of Experimental Agriculture International · 2024

Forty five rice genotypes were evaluated in a Randomized Block Design (RBD) at Regional Agricultural Research station, Polasa, during kharif 2023 to determine the genetic variability, heritability and genetic advance for  ten traits. Analysis of variance showed significant variat...

Open access Research Article 10.9734/jeai/2024/v46i82753

Molecular Confirmation for Gall Midge (Biotype 3) Resistance in Phenotypically Resistant Rice Genotypes Using Functional Markers

Anil Kumar, Y. Hari, J. Suresh, B. Srinivas, S. Omprakash, C. Narendra Reddy, Saikat Pal, R. Shravan Kumar & B. Edukondalu · Journal of Advances in Biology & Biotechnology · 2024

This study performed molecular screening of rice genotypes, which showed no gall infestation in field conditions at the Regional Agricultural Research Station (RARS), Jagtial, during rabi, 2021-22. using functional markers such as “gm3del3” for the gm3 gene, “LRR del” for the Gm4...

Open access Research Article 10.9734/jabb/2024/v27i111620