D. Vishnu Vardhan Reddy

Professor Jayashankar Telangana State Agricultural University

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M. M. Reddy

Professor Jayashankar Telangana State Agricultural University

C. S. Raju

Professor Jayashankar Telangana State Agricultural University

N. Sarla

Indian Institute of Rice Research

N. Lingaiah

National Institute of Technology Warangal

B. Padmaja

Professor Jayashankar Telangana State Agricultural University

V. Venkanna

Professor Jayashankar Telangana State Agricultural University

V. Gouri Shankar

All India Institute of Medical Sciences

K. Radhika

National Institute of Mental Health and Neurosciences

M. S. Madhav

Central Tobacco Research Institute

G. Veeranna

Professor Jayashankar Telangana State Agricultural University

Cooperative Institutions

Professor Jayashankar Telangana State Agricultural University

Acharya N. G. Ranga Agricultural University

Indian Institute of Rice Research

Indian Agricultural Research Institute

Indian Council of Agricultural Research

REVA University

Tamil Nadu Agricultural University

Sri Konda Laxman Telangana State Horticultural University

National Institute of Technology Warangal

Vellore Institute of Technology University

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Comparative Study on Impact of Mating Systems on Character Associations in Single Crosses of Maize (Zea mays L.)

International Journal of Plant & Soil Science (2023)

P. Bindu Priya T. Pradeep K. Sumalini D. Vishnu Vardhan Reddy K. Supriya

Although global maize breeding programmes are in momentum with high number of superior hybrids releasing annually, the full potential of hybrids is seldom achieved in real time due to various biotic and abiotic stresses. It is pertinent to broaden the diversity of available germplasm to suit to the needs of present changing climatic conditions. In this study, six segregating populations of two maize single crosses developed by imposing three types of matings (self, sib and random mating) were evaluated to assess their potential in future breeding programmes. Trait association studies were conducted in these populations to estimate the success rate of selections, time required to develop superior inbreds and assist in parental choice for hybrid development programmes. Results indicated that sib mating was the most effective among the three mating systems, as its progeny showed highest number of significant positive correlations among the yield and its related traits. Selfed progenies exhibited lesser number or weak positive correlations while random mating largely resulted in negative and weak positive correlations.

Germ plasm

Trait

10.9734/ijpss/2023/v35i224175

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Real-Time Flora Species Identification Using Unmanned Aerial Vehicle

2022 IEEE 2nd Mysore Sub Section International Conference (MysuruCon) (2022)

Madhu Palati V Prashanth Karnam Pranav D. Vishnu Vardhan Reddy Vaibav Varshini

Remote sensing is used in drones, and Unmanned Aerial Vehicles (UAVs) current trends, and this technology can provide unparalleled benefits that change lives in humanity. Drones are used in many fields such as the military, research, agriculture, and recreation. This technology can not only reduce test time, but also provide many benefits such as providing a real-time live video test site that can help the user analyze site planning and speed up all activities. However, green monitoring using a sensor remotely has its challenges with regard to image processing and data. Somehow, previous research has suggested a number of possible algorithms that can be used to process the data collected after processing. However, most of the algorithms require a certain sensor to get the result. In this work, mini sensors and processors like raspberry pi for the flight controller are used. The purpose of this paper is to identify and validate an appropriate algorithm for processing plant images. In turn, using these algorithms is used to identify trees and natural vegetation. This study uses the data collected from a variety of sources using a consumer camera and process using convolutional neural networks (CNN) models to give appropriate results. Proposed model is trained to identify the mango leaves and the model gave 95% accurate results.

Drone

Identification

10.1109/mysurucon55714.2022.9972570

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Effect of nutrients and biostimulants on growth and flowering of loose flowers of tuberose (Polianthes tuberosa L.) cv. Bidhan Rajini - 1

International Journal of Chemical Studies (2019)

J. Archana A. Girwani D. Vishnu Vardhan Reddy Ch. Raja Goud

The investigation on tuberose cv. Bidhan Rajini-1 were carried out at the Floriculture Research Station Rajendranagar, Hyderabad, to find out the effect of nutrients and biostimulants on tuberose with reference to growth attribute. The experiment was laid out in Randomized Block Design consisted of four biostimulants viz., Humic acid, Fulvic acid, Potassium humate, Arka Microbial Consortium in combination with nutrients. Various growth characters were recorded after planting. The experiment results showed that among the different treatments, application of 75% recommended doses of fertilizers (RDF) + Humic acid 12% (3ml/l) have shown significant effect on the vegetative growth parameters and maximum plant height and number of leaves, were recorded. In addition, this treatment has also resulted in early spike emergence (65days) and maximum spike length (83.56 cm), maximum chlorophyll content (58.66 Spad units) and promoted maximum duration of flowering (174.6 days) in tuberose cv. Bidhan Rajini-1. On the other hand, application of 100% RDF (200kgs each of NPK) resulted in maximum floret length (6.30cm) and floret diameter (5.28 cm).

Polianthes tuberosa

Floriculture

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Citations (1)

Bio-efficacy and economics of herbicide mixtures in zero-till maize (Zea mays) grown after rice (Oryza sativa)

Indian Journal of Agronomy (2012)

M. M. Reddy B. Padmaja G. Veeranna D. Vishnu Vardhan Reddy

A field experiment was conducted at Warangal, Andhra Pradesh during 2008–09 and 2009–10 to study the effect of pre-emergence application of herbicides viz. atrazine, glyphosate, paraquat and 2, 4-D sodium salt in zerotill maize (Zea mays L.) grown after rice (Oryza sativa L.) as sole and tank mixtures. The lowest density (no/m2) and dry weight (g/m2) of grasses (1.0 and 1.0, respectively), sedges (9.0 and 2.0, respectively) and broad- leaved weeds (1.0 and 0.5, respectively) were observed with the tank mix application of atrazine + glyphosate (0.75 + 0.8 kg/ha) recorded at 30 days after sowing. It was at par with atrazine + paraquat (0.75 + 0.75 kg/ha). The weed control efficiency was high with atrazine + glyphosate (93%) with the lowest weed persistence index (0.003) followed by atrazine + paraquat (84% and 0.021, respectively). Among the herbicides applied alone, glyphosate (1.6 kg/ha) was found to be superior to atrazine (1.5 kg/ha) and paraquat (1.5 kg/ha) for density, dry weight of weeds and weed-control efficiency. The grain yield obtained with tank mix application of atrazine + glyphosate (5.25 t/ha) was 170 and 70% more over weedy check and sole atrazine, respectively. Among all the herbicides and mixtures, atrazine + glyphosate gave the maximum net returns ( 29,350/ha) and benefit: cost ratio (1.71) followed by atrazine + paraquat due to the broad - spectrum control of weeds.

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Studies on yield attributes in brinjal (Solanum melongena L.).

Indian Journal of Plant Physiology (1980)

M. R. Rao E. N. Reddy D. Vishnu Vardhan Reddy

Melongena

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Genetic mechanism of heterosis and inbreeding depression for grain physical quality traits in elite rice (Oryza sativa L.) crosses

Journal of Eco-friendly Agriculture (2023)

N. Lingaiah C. S. Raju N. Sarla K. Radhika V. Venkanna

Elite

Grain Quality

10.5958/2582-2683.2023.00010.2

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Citations (2)

Physiological basis of improved yields in rainfed cotton under high density planting system.

B. Santhosh Ramesh Thatikunta D. Vishnu Vardhan Reddy S. A. Hussain V. Gouri Shankar

Basis (linear algebra)

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Morphological and phenological characterization with grain yield in advanced breeding lines of Rice (Oryza sativa L.)

Deleted Journal (2020)

Dushyant Kumar D. Vishnu Vardhan Reddy P Raghuveer Rao M. S. Madhav V. Gouri Shankar

Rice (Oryza sativa L.) is the most important staple food crops in the world. In Asia, more than two billion people are getting 60-70 per cent of their energy requirement from rice and its derived products. Samba Mahsuri (BPT-5204) is premium quality aromatic and light weight rice. Due to its excellent grain character, variety being regularly used in hybridization programmes to meet current breeding objectives. Therefore, use of advanced breeding lines generated from BPT-5204 would only be appropriate and evaluation of available germplasm or mutants for various physiological and yield attributes is essential. It was proposed to characterize the advanced EMS mutated lines for their important morphological, physiological, yield attributing traits, grain characteristics as compared to the wild type (untreated Samba Mahsuri). The experimental field was laid in RBD replicated thrice with 30 high yielding rice genotypes which includes 26 advanced breeding lines (ABL) and four checks. Morphological parameters were measured at periodical intervals. Plant height among genotypes ranged from 92 to 131cm. Genotype, SP-70 (126 cm) showed maximum plant height and followed by SP-355 (124 cm) compared BPT-5204 (98 cm). Mean plant height increased by 44.3% from active tillering to panicle initiation stage and then by 28.4% from PI to physiological maturity. Higher number of tillers per plant was observed in SP-08 and SP-70 (23) compared to check BPT-5204 (18). Among the duration groups, the short duration (116 to 122 days) lines were SP-08, SP-72, SP-70 and SP-69. The medium duration (125 to 133 days) lines, SP-351, SP-353, SP-355, SP-357, SP-80 and SP-25 and long duration (140 to 148 days) lines, SP-02, SP-03 and SP-37 found superior in terms of grain yield as compared to their respective check varieties. Two advanced breeding lines namely SP-08 and SP-70 can be further probed thoroughly for further increasing in yield and yield attributes.

Panicle

Germ plasm

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EVALUATION OF BOTANICAL AND OTHER EXTRACTS AGAINST PLANT HOPPERS IN RICE

Journal of Biopesticides (2011)

A Venkat Reddy Renu Devi D. Vishnu Vardhan Reddy

ABSTRACT A field experiment was conducted to determine the comparative efficacy of ten botanical leaf aqueous extracts, panchagavya, acephate as standard check and untreated control against hoppers in rice during kharif 2009-2010 and 2010-2011.The treatments include: Aqueous leaf extract of Vitex, Pongamia, Custard, Calotropis at 5 and 7.5% concentration, Neem Seed Kernel Extract (NSKE) at 5 and 7.5% concentration, panchagavya at 5 and 7.5% concentration, acephate 75%SP @ 1.5 g/lt and untreated control. The cumulative data reveals that the standard check-Acephate 75 SP @ 1.5 g/lt recorded significantly higher mean % reduction of hoppers and higher grain yield over all the other treatments. Among the botanical extracts, NSKE at 7.5% concentration recorded higher efficacy against hoppers by recording 49.4% mean reduction with a mean grain yield of 4775 kg/ha and found to be at par with some of the other botanical extracts. The Panchagavya and Custard leaf extracts at both the concentration shown significantly lower efficacy. Except Acephate and NSKE at 7.5% concentration, all the other treatments were found to be at par with each other in terms of grain yield.

Acephate

Custard-apple

Pongamia

Kharif crop

10.57182/jbiopestic.5.1.57-61

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Citations (12)

Performance of maize (Zea mays L.) and sunflower (Helianthus annuus L.) under different sowing dates in rice fallows.

The Journal of Research ANGRAU (2010)

M. M. Reddy B. Padmaja D. Vishnu Vardhan Reddy

Helianthus annuus

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