S. Triveni

Professor Jayashankar Telangana State Agricultural University

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R. Subhash Reddy

Professor Jayashankar Telangana State Agricultural University

Yalavarthi Nagaraju

National Bureau of Agriculturally Important Microorganisms

K. Damodara Chari

National Institute of Plant Health Management

A. Vijaya Gopal

Acharya N. G. Ranga Agricultural University

G. Uma Devi

Professor Jayashankar Telangana State Agricultural University

G. Jayasree

Professor Jayashankar Telangana State Agricultural University

Radha Prasanna

Indian Agricultural Research Institute

Anil Kumar Saxena

GLA University

B. Vidya Sagar

Professor Jayashankar Telangana State Agricultural University

K. Bhavya

Professor Jayashankar Telangana State Agricultural University

Cooperative Institutions

Professor Jayashankar Telangana State Agricultural University

135

Acharya N. G. Ranga Agricultural University

Indian Agricultural Research Institute

Indian Council of Agricultural Research

Indian Institute of Rice Research

Indian Institute of Oilseeds Research

Central Research Institute for Dryland Agriculture

Sri Konda Laxman Telangana State Horticultural University

Planta

Tamil Nadu Agricultural University

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Evaluation of diverse range microbes for their plant growth promoting abilities and their pesticide compatibility

Environment Conservation Journal (2021)

Tulja Sanam S. Triveni J. Satyanaryana Sridhar Goud Nerella K. Damodara Chari

Plant growth-promoting rhizobacteria (PGPR) contribute to an increase in crop yield through an environmentally friendly method, therefore eight rhizospheric bacteria, two of each genera Bacillus, Pseudomonas, Azotobacter and Azospirillum were examined for their efficacy to solubilize mineral nutrients using atomic absorption spectrophotometry and a flame photometer. Their potency to produce phytohormones, synthesis biocontrol components and their compatibility with pesticides using in vitro assays was studied. All of the chosen bacterial isolates proved positive for the above-mentioned Plant Growth Promoting traits. Among the eight bacterial isolates Pseudomonas isolate P69 showed the highest phosphorous solubilization efficiency of 190.91 % and another isolate P48 produced a maximum of 27.63µg mL-1 of gibberellic acid, Bacillus isolate B120 could solubilize maximum amount of ZnO and ZnCO3 accounting for 21.3ppm and 25.9ppm, respectively, not merely in terms of solubilization when compared to the other isolates, B120 produced the highest levels of HCN (77.33 ppm TCC) and siderophores (48.87psu). On day 9 after inoculation, Azotobacter isolate AZB17 performed effectively in potassium solubilization of 6.25g mL-1 with a pH drop to 3.83. The Azospirillum isolate ASP25 outperformed all other isolates in terms of IAA production (22.64g mL-1) and Bacillus isolate B365 was found to be more compatible with eight different pesticides used in the field at varying concentrations. All of these factors point to the possibility of using these bacterial isolates B120, P48, P69, AZB17, and ASP25 as biofertilizers in sustainable agriculture.

Biofertilizer

Azotobacter

Pseudomonas putida

10.36953/ecj.2021.22306

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Influence of PSB Biofertilizer on Biomass Production in Maize and Soil Microbial Biomass Carbon

International Journal of Current Microbiology and Applied Sciences (2017)

S. Babu S. Triveni R. Subhash Reddy J. Sathyanarayana

Maize is one of the most important cereal crops of the world and contributes to food security in most of the developing countries. In India, maize is emerging as third most important crop after rice and wheat in recent years. The efficient PSB isolates of 24 phospahte solubilizing bacteria isolated from Maize Research Station and College Farm, Rajendranagar, PJTSAU, Telangana, was used in this study. In this study Soil microbial biomass carbon and Maize plant biomass production of was recorded at different growth stages viz., vegetative, flowering and harvesting stages of crop in response to different formulation of PSB and their combination. There was an increasing trend soil microbial biomass was noticed from vegetative to flowering stages and a gradual decrease was observed from flowering stage towards harvesting stage in all the treatments studied. However significant by higher soil biomass carbon was recorded in the treatment T7 - Carrier + Liquid + Biofilmed PSB biofertilizer at vegetative (102.06µg kg-1 of soil microbial biomass carbon and 5.10 g of Plant dry wt), flowering (140.33 µg kg-1 of soil microbial biomass carbon and 15.97 gof Plant dry wt) and at harvesting (121.73µg kg-1 of soil microbial biomass carbon and 32.14 g of Plant dry wt) respectively compared to all other treatments. The major outcome of this study was the Carrier + Liquid + Biofilmed PSB biofertilizer treated Maize (Zea mays) plants produces highest biomass than other treatments.

Biofertilizer

Dry weight

Soil carbon

10.20546/ijcmas.2017.611.241

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Citations (1)

Assessment of spatial variability of soil fertility status of Nagarjuna Sagar Left Bank command area in Nalgonda district, Telangana using GIS-GPS

Deleted Journal (2021)

G. Kiran Reddy Shk Sharma G. Jayasree SA Hussain S. Triveni

The study was carried out to know the soil fertility status of Nagarjuna Sagar Left Bank Command area, of Nalgonda district, Telangana by using GPS-GIS technology during the year 2020-2021. The pH of soils of Nagarjuna Sagar Left Bank Command area varied from 6.21 to 9.62, most of the soils were found to be moderately alkaline to very alkaline (78.23%) while EC varied from 0.17 to 4.33dS m-1, most soils were found to be high saline to very high saline (97.54 %) in salinity. Organic carbon content varied from 0.15 to 1.16% and categorized as low (30.4%), medium (66.6%) and high (3.0%). The soil available nitrogen, phosphorus and potassium in study area varied between 100.0 to 450.0, 10.3 to 71.2 and 25.5 to 1115.9 kg ha-1, respectively. The soils were low (50.1%) and medium (49.9%) in available nitrogen, with respect to available phosphorus low (0.1%), medium (87.2%) and high (12.7%). In case of available potassium low (0.2%), medium (21.7%) and high (78.1%). The exchangeable calcium and magnesium ranged from 6.2 to 16.2 and 3.2 to 9.8 cmol (p+) kg-1, respectively. The available sulphur varied from 0.32 to 29.9 mg kg-1. The soils were low (0.5%), medium (67.1%) and high (32.4%) in available sulphur content. The soils were sufficient (100.0%) in exchangeable calcium and magnesium, respectively. Available Zn, Cu, Fe and Mn were deficient in 97.49%, 94.95%, 99.63% and 99.01% soil samples respectively.

Alkali soil

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Persistence of PSB-Fungi Biofilmed Biofertilizer in the Soils and its Effect on Growth and Yield of Maize

International Journal of Current Microbiology and Applied Sciences (2017)

S. Babu S. Triveni R. Subhash Reddy J. Sathyanarayana

Maize is grown throughout the year in India during kharif crop. Nitrogen and phosphorus are essential nutrients for plant growth and development in corn. Twenty four (24) phosphate solubilizing bacteria (i.e., sixteen Bacillus and eight Pseudomonas) were isolated from Maize Research Station and college farm, Rajendranagar, PJTSAU, Telangana. Persistency of Phosphate solubilizing biofertilizers in soil was recorded at different growth stages viz., vegetative, flowering and harvesting stage. There was an increasing trend observed from the vegetative to flowering stages and also a gradual decrease was observed from flowering stage towards harvesting stage. Similar trend was observed for all the treatments studied. But significantly higher were recorded in the treatment T7 - Carrier + Liquid + Biofilmed PSB biofertilizer at vegetative (22.40x107cfu g-1), flowering (26.60x107cfu g-1) and at harvesting (22.03x107cfu g-1) stage. The major outcome of this study was the Carrier + Liquid + Biofilmed PSB biofertilizer treated Maize (Zea mays) plants showed best performance for all the biological parameters measured than untreated and individual cultures.

Biofertilizer

Kharif crop

Phosphate solubilizing bacteria

Vegetative reproduction

Non-invasive ventilation

10.20546/ijcmas.2017.612.205

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Citations (4)

Effect of integrated nutrient management on yield, quality and economics of turmeric (Curcuma longa L) var. IISR Pragathi

Journal of Pharmacognosy and Phytochemistry (2019)

D. Amala B. Neeraja Prabhakar M. Padma S. Triveni

A field experiment was carried out on “Effect of integrated nutrient management on yield, quality and economics of turmeric (Curcuma longa. L) var. IISR Pragathi” with varied combinations of organic, inorganic and biofertilizers with seven treatments replicated thrice and in complete RBD at PG Students Research Farm, College of Horticulture, SKLTSHU, during kharif 2018-19.Among the seven treatments combinations application of 75% NPK (Recommended Dose Fertilizer) + Farm yard manure (25 t ha-1) + Vermicompost (5 t ha-1) + Neem cake (500 kg ha-1) + Azotobacter (2 kg ha-1) + Phosphorous solubilizing bacteria (2 kg ha-1) (T6) enhanced the fresh rhizome yield (29.69 t ha-1), curcumin content (4.74%) where as curing percentage (24%) and benefit cost ratio (4.76) was highest in (T4): Farm yard manure (25 t ha-1) + Vermicompost (5 t ha-1) + Neem cake (500 kg ha-1) + Azotobacter (2 kg ha-1) + Phosphorous solubilizing bacteria (2 kg ha-1).

Nutrient Management

Azotobacter

Neem cake

Biofertilizer

Kharif crop

Phosphate solubilizing bacteria

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Enhancing biogas production by anaerobic co-digestion of pretreated agricultural and horticultural waste

International Journal of Chemical Studies (2019)

B Prasanna Kumar S. Triveni A. Vijaya Gopal

Biogas production through anaerobic digestion is a resource effective way of managing the large volume of organic waste generated, which allows for simultaneous waste utilization and energy generation. In this study biogas production technologies from different agricultural as well as horticultural feedstock was used along with the pretreatment with efficient cellulose degrading bacterial isolate DKW showed maximum cellulose degrading ability as 1.375 mm (0.362 mg/ml) when compared to other isolates, a comparative experimental analysis between different types of biomass residues used for biogas production as estimation of biological oxygen demand (BOD) (HW-T4-M1-C2: 134 mg l-1), chemical oxygen demand (COD) (HW-T3-M1-C1: 113 g l-1), cellulose (AW-T2-M1-C2: 16.56%), pH (HW-T4-M1-C2: 8.48), Nitrogen (HW-T3-M1-C1: 1.48%), Phosphorus (HW-T4-M1-C2: 1.96%) and Potassium (HW-T3-M1-C1: 0.94%) during the anaerobic fermentation process. The comparison is achieved using as a parameter the biogas quality and quantity which are produced variable quantity at different intervals, using available agricultural and horticultural waste material.

Biogas

Biogas Production

Digestate

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SCREENING AND CHARACTERIZATION OF STRESS TOLERANT RHIZOBIA FROM DIFFERENT SOILS OF TELANGANA

International Journal of Microbiology Research (2018)

K. Damodara Chari R. Subhash Reddy S. Triveni N. Trimurtulu V. DURGA RANI

Present in vitro experiment was carried out to identify plant growth promoting rhizobial isolates for abiotic stress tolerance.Rhizospheric soils from normal, salt affected, drought affected were collected from different places of Telangana state.From all soil samples, twenty one rhizobial isolates were collected.Among the twenty one isolates, eleven isolates were showed different plant growth promoting properties.The results of different in vitro abiotic stress tolerance of isolates reveals that, only one isolate showed tolerance to temperature from 20ºC-50ºC (YR-21), three isolates were showed tolerance to temperature from 20ºC -45ºC (RR-1, GR-5, GNR-8), one isolate was showed tolerance to temperature from 30ºC-45ºC (MR-11), only one isolate were showed tolerance to temperature from 30ºC -40ºC (ASR-17).Two isolates showed tolerance to water potential from -0.05 Mpa to-0.15Mpa (RR-1, RR-3), three isolates were showed tolerance to water potential from -0.05 Mpa to -0.30 Mpa (GNR-8, ASR-19, YR-21), only one isolate showed tolerance to water potential at -0.05 Mpa (GNR-7).

Characterization

10.9735/0975-5276.10.3.1038-1042

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Citations (3)

Effect of different sources and levels of nitrogen, phosphorus and zinc on soil fertility, nutrient content, uptake and yield of soybean

Deleted Journal (2021)

Eetela Sathyanarayana G. Padmaja Shivesh Sharma GE Ch. Vidya Sagar S. Triveni

Grape (Vitis vinifera) is one of the most delicious refreshing and nourishing fruits. It is universally consumed as table fruit and ripen grapes are easily digestible. The study was based on the time series, secondary data collected from different reliable resources and data were collected for the period of 2007-08 to 2019-20. The area of grapes in the year 2007-08 was 68 thousand hectares has rose to 140 thousand hectares in the year 2019-20. Production which was 1735 thousand Mt in the year 2007-08 was increased to 3125 thousand Mt in the year 2019-20. Five major countries which are importing grapes from India are Netherland, Russia, United Kingdom, Bangladesh and Germany. Russia, United Kingdom, Bangladesh and Germany were found to be stable markets with good amount of retention of market share. The country Netherland retained 36 per cent of its previous market share of which it lost to Russia with 9 per cent, 3 per cent to Germany and 51 per cent to other minor importing countries during the study period. Russia and Germany were found to be more stable market in terms of value for the grapes that are exported during the study period. Netherland, United Kingdom, Bangladesh and other minor importing countries were found to be moderately stable. Government need to meet the demands as per the specifications of the country to retain the country to be loyal for the imports of grapes.

Hectare

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PROSPECTING CYANOBACTERIA-FORTIFIED COMPOSTS AS PLANT GROWTH PROMOTING AND BIOCONTROL AGENTS IN COTTON

Experimental Agriculture (2014)

Radha Prasanna Santosh Babu Ngangom Bidyarani Arun Kumar S. Triveni

SUMMARY The potential of cyanobacteria-based compost formulations was evaluated in cotton crop at two agro-ecological locations (Nagpur and Sirsa) as plant growth promoting (PGP) and biocontrol agents. Compost-based formulations fortified with Calothrix sp. or Anabaena sp. enhanced germination and fresh weight of plants, and microbiological activity by 10–15%, besides increased available nitrogen (by 20–50%) in soil at Nagpur. In the fungi-infected fields at Sirsa, Anabaena – T. viride biofilmed formulation performed the best, recording 11.1% lower plant mortality than commercial Trichoderma formulation. Scanning electron microscopy confirmed the colonisation of inoculated cyanobacteria/biofilms on roots. Significant correlation between mortality, increased activity of hydrolytic enzymes and fresh weight of plant roots were recorded. Calothrix sp. and Anabaena sp. proved promising as both PGP and biocontrol agents, while biofilmed formulations substantially reduced mortality of cotton plants in sick plots. This study illustrates the promise of cyanobacteria as viable inoculation option for integrated nutrient and pest management strategies of cotton.

Dry weight

Trichoderma

Trichoderma viride

Biofertilizer

10.1017/s0014479714000143

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Citations (85)

Influence of Tillage and Weed Management Strategies on Soil Microbial Biomass and Dehydrogenase Activity in Maize (Zea maysL.) Cultivation

Kiran K. Reddy K. P. Vani Chinta Sudhakar P. Surendra Babu S. Triveni

10.21276/aatccreview.2024.12.04.363

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