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Ravi Ranjan Kumar

Publications (21)

Composite Effect of Drip Irrigation and Different Color Mulching of Banana Crop in North Bihar Agro-climatic Condition

Ravi Ranjan Kumar, R.Suresh & S.K.Nirala · International Journal of Environment and Climate Change · 2024

The Research work was carried out with three main treatments; 100, 80, and 60% of V volume of water through drip and five sub-treatment with different color mulch i.e black, blue, red, white color plastic mulch and without mulch (control) with three replications. Variety Grand Na...

Open access Research Article 10.9734/ijecc/2024/v14i104483

Analysing the Growth and Instability of Cereal Crop Production Across Kharif and Rabi Seasons in Western Odisha, India

Ravi Ranjan Kumar, Moumita Baishya, Anupam Panigrahi & Kakali Das · International Journal of Environment and Climate Change · 2024

Over the past decade, agricultural development in India has evolved significantly due to a range of influencing factors. In Odisha, the agricultural sector is particularly susceptible to risks and uncertainties, making it crucial to assess growth and instability. This study provi...

Open access Research Article 10.9734/ijecc/2024/v14i94453

Effect of Different Type Mulch on Growth, Yield Attributes and Yield of Brinjal (Solanum melogena)

Ravi Ranjan Kumar, Rajeev Singh, Nityanand ., R. K. Sohane & A. K. Singh · Current Journal of Applied Science and Technology · 2019

Field experiment was conducted at Krishi Vigyan Kendra, Aurangabad and at farmer’s field during 2012 and 2013 to Effect of different type mulch on growth, yield attributes and yield of Brinjal (Solanum melogena). The experiment was conducted in randomized block design with three...

Open access Research Article 10.9734/cjast/2019/v37i630333

Advances in Ornamental Plant Micropropagation: Prospects for Floriculture Diversification in Bihar, India

S. R. P. Singh, Ravi Ranjan Kumar, Jai Prakash Prasad, Kumari Rajani, J. N. Srivastava & Anand Kumar Jain · Journal of Advances in Biology & Biotechnology · 2026

Ornamental horticulture is a technology-oriented aspect of high-value agriculture. However, in Bihar, its development is limited by low crop diversification, the use of poor-quality planting material, and deficiencies in production, post-harvest, and marketing infrastructure. Thi...

Open access Research Article 10.9734/jabb/2026/v29i104483

Response of Drought Tolerant Rice (Oryza sativa L.) Varieties under Various Methods of Establishment in Drought-prone Condition of Bihar

Rajeev Singh, Ravi Ranjan Kumar, Nityanand ., R. K. Sohane, Anjani Kumar Singh, R. N. Singh & Devendra Mandal · Current Journal of Applied Science and Technology · 2019

A field experiment was conducted at Krishi Vigyan Kendra, Aurangabad and in farmers’ field during rainy seasons of 2013, 2014 and 2015, to Performance of drought tolerant rice varieties under various methods of stand establishment in rainfed drought-prone condition of Bihar. Expe...

Open access Research Article 10.9734/cjast/2019/v37i630334

Evaluation of Different Herbicide on Weed Growth, Yield Attributes, Yield and Economics on Lentil (Lens culinaris)

Rajeev Singh, Ravi Ranjan Kumar, Praveen Kumar, A. K. Singh, R. K. Sohane, R. N. Singh, Anjani Kumar Singh, Nityanand ., Tej pratap & Sangita Mehta · Current Journal of Applied Science and Technology · 2019

A field experiment was conducted at Aurangabad district of Bihar during 2014-15 and 2015-16. The experiment was laid out in randomized block design with five replications and six treatments. The major weeds in experimental field were Chenopodium album, Phalaris minor, Anagalis ar...

Open access Research Article 10.9734/cjast/2019/v33i230059

Screening of Lentil Genotypes against Highly Aggressive Strain of Fusarium oxysporum f. sp. lentis

Naila Tarannum, Anil Kumar, Ravi Ranjan Kumar, Anand Kumar, J. N. Srivastva & Nitish De · International Journal of Plant & Soil Science · 2021

Lentil is one of the most nutritious pulse crops known as masur and grown as a rainfed crop throughout the world in winter season. It is rich in protein, starch, micronutrients and dietary fiber. In the global scenario, India ranked first in the area and second in the production...

Open access Research Article 10.9734/ijpss/2021/v33i2430793

Characterization of Pigeonpea Genotypes for Waterlogging Tolerance Based on Morpho-physiological and Molecular Traits

Deepak Kumar, Rafat Sultana, Ravi Ranjan Kumar & Megha Kirti · Current Journal of Applied Science and Technology · 2020

Aim: To screen and characterize pigeonpea genotypes using morpho-physiological, biochemical and molecular traits. Study Design: The field trial was conducted using the Randomized Block Design (RBD) while Completely Randomized Design was used for laboratory and pot screening exper...

Open access Research Article 10.9734/cjast/2020/v39i1230660

Principal Component Analysis in Desi Chickpea (Cicer arietinum L.) under Normal Sown Condition of Bihar

Kumari Rajani, Anand Kumar, Ravi Ranjan Kumar, Sadia Perween, Sanjay Kumar, Anil Kumar, Satyendra . & Mankesh Kumar · Current Journal of Applied Science and Technology · 2020

Chickpea (Cicer arietinum L.) is the second most important food legume crop after common bean (Phaseolus vulgaris L.). It is one of the most important rabi pulse crop in India and contributes to 20% of the total pulse production in the world. India ranks first in chickpea product...

Open access Research Article 10.9734/cjast/2020/v39i930608

In silico Characterization and Homology Modelling of Potato Leaf Roll Virus (PLRV) Coat Protein

Jitesh Kumar, Tushar Ranjan, Ravi Ranjan Kumar, Mohammad Ansar, Kumari Rajani, Mahesh Kumar, Vinod Kumar & Anand Kumar · Current Journal of Applied Science and Technology · 2019

Polerovirus (Family-Luteoviridae) are one of the most destructive viruses causing detrimental diseases in vegetable crops in tropical regions of the world including India. Four species viz. potato leaf roll virus (PLRV), potato virus Y(PVY), potato virus X(PVX) and potato virus S...

Open access Research Article 10.9734/cjast/2019/v33i230054

Strategies and Challenges in Mentha Crop Intervention against Blue Bull for Enhancing the Farmer Income

Sangita Mehta, Praveen Kumar, Ravi Ranjan Kumar, Nityanand ., Dinesh Kumar, R. K. Sohane, A. K. Singh & Rajeev Singh · Current Journal of Applied Science and Technology · 2019

Improving farmer’s income through technological intervention is the urgent need in rural areas for making self-dependence and economic sufficiency. In this direction, a number of scientist farmers interaction meets were organized in KVK, Aurangabad. Farmers farm women, rural yout...

Open access Research Article 10.9734/cjast/2019/v33i230064

Genetic Diversity Analysis in Grasspea (Lathyrus sativus L.) Using SSR Molecular Markers

Soni Kumari, Jitesh Kumar, Ravi Ranjan Kumar, Anand Kumar, M. S. Nimmy, Tushar Ranjan & Vinod Kumar · Current Journal of Applied Science and Technology · 2019

The study of genetic diversity among Lathyrus sativus L. may give fundamental insights into extent of genetic variation and provide options to meet the climate change challenge. 20 SSR loci were employed to assess the genetic diversity of 32 grasspea genotypes. Eleven markers pro...

Open access Research Article 10.9734/cjast/2019/v33i330070

Varietal Evaluation of Different Genotypes of Linseed for Yield Performance in Aurangabad District of Bihar

Praveen Kumar, Rajeev Singh, Ravi Ranjan Kumar, Nityanand ., Dinesh Kumar, R. K. Sohane, A. K. Singh & Sangita Mehta · Current Journal of Applied Science and Technology · 2019

Linseed is locally known as Tissi, common Flax and Alsi. It belongs to family Linaceae. It is a rabi oil seed crop. It has medicinal and industrial importance. It is rich source of essential fatty acid (alfa-linolenic acid) known as Omega-3 fatty acid, antioxidants and fibre. The...

Open access Research Article 10.9734/cjast/2019/v33i330074

A Rapid and Inexpensive Method of DNA Extraction from Palmyra Palm (Borassus flabellifer)

Soni Kumari, Ruby Rani, Jitesh Kumar, Ravi Ranjan Kumar & Tushar Ranjan · Current Journal of Applied Science and Technology · 2019

Aims: The study aims to highlight the simple optimisation, inexpensive and rapid procedure for DNA isolation from tough leaves (Palmyra palm) without compromising the yield and purity of DNA. Study Design: Leaf of palmyra palm (Borassus flabellifer) was used to conduct the experi...

Open access Research Article 10.9734/cjast/2019/v33i230061

Exploring Genetic Diversity in Chickpea (Cicer arietinum L.) Under Normal Sown Condition of Bihar

Prince Raj, Anand Kumar, Sadia Perween, Ravi Ranjan Kumar, Satyendra ., Tushar Ranjan & P. K. Singh · Current Journal of Applied Science and Technology · 2018

Aims: The present investigation was undertaken to study the nature and magnitude of genetic diversity among chickpea genotypes. Study Design: The experimental material comprised of forty genotypes of chickpea in Rabi 2016-17 at Pulse Research Farm, Bihar Agricultural University,...

Open access Research Article 10.9734/CJAST/2018/45989

Interactive Effects of Plant Growth Regulators and Varieties on Morpho-florimetric Traits and Flower Yield of China Aster (Callistephus chinensis L. Nees)

Rakesh Kumar, Shashi Ranjan Pratap Singh, Paramveer Singh, Jai Prakash Prasad, Ravi Ranjan Kumar, Anand Kumar Jain & J.N. Srivastava · Journal of Advances in Biology & Biotechnology · 2026

The combined effects of plant growth regulators (PGRs) and varietal selection are important for improving ornamental crop productivity; however, variety-specific responses to PGRs have been less systematically examined in China aster. This study evaluated seven exogenous PGR trea...

Open access Research Article 10.9734/jabb/2026/v29i74079

Formulation, Rheological Characterization and Sensory Evaluation of Jam and Jelly from Annona squamosa L. (Custard apple)

Kumari Shashi Bala, Seema, Vinod Kumar, Tushar Ranjan, Ravi Ranjan Kumar, Manish Kumar & Alok Kumar · Journal of Advances in Biology & Biotechnology · 2025

Annona Squamosa L. (Custard apple) is a tropical fruit known for its sweet taste, distinct flavour, and pleasant, aromatic creamy pulp. The fruit has high nutritional value as it is rich in protein, carbohydrate, sugars, vitamins, phosphorus, potassium and high dietary fibre with...

Open access Research Article 10.9734/jabb/2025/v28i82792

Genetic Variability and Character Association Studies in Indian Mustard (Brassica juncea L.)

Shubham Chakraborty, Anil Kumar, Chandan Kishore, Anand Kumar, Ravi Ranjan Kumar & Nitish De · International Journal of Environment and Climate Change · 2021

India is a nation which has got huge scope for modernization. The pace of increasing modernization in India coupled with its ever increasing human population is posing a very serious impact on environment mainly due to global warming. Abrupt rainfall conditions coupled with droug...

Open access Research Article 10.9734/ijecc/2021/v11i1130519

Physiological and Biochemical Assesement of Chickpea and Lentil Grown in Different Agroclimatic Zones of Bihar

Kumari Rajani, Vikash Kumar, Shashi Bhusan Kumar, Anand Kumar, Ravi Ranjan Kumar & Anil Kumar · Current Journal of Applied Science and Technology · 2020

The present study was conducted to evaluate the seed quality of chickpea (cv. PG-186) and lentil (cv. HUL-57) seed samples collected from randomly selected districts of different agroclimatic zones of Bihar. The seed quality was assessed based on their physiological (seed moistur...

Open access Research Article 10.9734/cjast/2020/v39i1030629

Study of Genetic Diversity on Yield and Yield Attributing Components in Lentil (Lens culinaris Medik.) Under Normal and Late Sown Conditions

Fariha Adan, Anil Kumar, Anand Kumar, Chandan Kishore & Ravi Ranjan Kumar · Current Journal of Applied Science and Technology · 2020

The present investigation was carried out on thirty-six lentil genotypes at the farm of Bihar Agricultural University, Sabour, Bhagalpur in 2018-19. The genetic divergences were examined using Mahalanobis D2 statistics for two dates of sowing i.e normal sown and late sown conditi...

Open access Research Article 10.9734/cjast/2020/v39i230498

Principal Component Analysis for Assessment of Genetic Diversity in Rainfed Shallow Lowland Rice (Oryza sativa L)

Prince Raj, Anand Kumar, . Satyendra, S. P. Singh, Mankesh Kumar, Ravi Ranjan Kumar, Bishun De o Prasad & Sanjay Kumar · Current Journal of Applied Science and Technology · 2020

The genetic diversity was estimated using seventy two genotypes of rice in a randomized block design with three replications at the rice research farm of Bihar Agricultural University, Sabour (Bhagalpur) during Kharif, 2019-20 to determine the contribution of fifteen quantitative...

Open access Research Article 10.9734/cjast/2020/v39i4831228