scholarly journals Management of Aphelenchoides besseyi infecting Polianthes tuberosa in West Bengal, India

2020 ◽  
Vol 41 (6) ◽  
pp. 1774-1780
Author(s):  
V. Kadam ◽  
◽  
R.K. Patidar ◽  
R. Thangjam ◽  
M. Pathak ◽  
...  
Keyword(s):  
Plant Growth ◽  
West Bengal ◽  
Growth Parameters ◽  
Infected Plant ◽  
Germination Percentage ◽  
Nematode Population ◽  
Stunted Growth ◽  
Aphelenchoides Besseyi ◽  
Untreated Check ◽  
Foliar Nematode

Aim: The study was conducted for management of foliar nematode, Aphelenchoides besseyi through different treatment modules in tuberose, Polianthes tuberose. Methodology: A field experiment was carried out with seven treatment modules with four replications to assess the efficacy of treatment modules to manage the foliar nematode in tuberose variety, Calcutta Double. Observations on germination percentage and spike emergence as well as initial and final nematode population in bulbs and plant growth parameters were analysed.? Results: The experiment was conducted with naturally infected plant of tuberose bearing an initial nematode population per five bulbs. The per cent change over treated bulb was found significantly different from the control. The experiment revealed that the germination percent of tuberose bulbs increased under the treatment modules compared to untreated control. Emergence of 55 per cent and 100 per cent spike in treatment modules was earlier than the untreated check. Plant growth parameters were superior in treatment modules as compared to control. Symptoms like stunted growth of plants prickle like structures on the scape and flower and hardy brown flowers in untreated plants were not found in the treated plots.? Interpretation: Symptom development in different parts of tuberose plants increased with increase in population of foliar nematode rendering to the unmarketable tuberose plants. Therefore, an urgent need of management of foliar nematode is documented with seven treatment modules and the modules were found effective in managing the nematode population in field condition.

Effect of Oil Cakes and Bio-agents Each Alone and in Combination for Management of Root Knot Nematode (Meloidogyne incognita) in Green Gram

2021 ◽  
Vol 12 (5) ◽  
pp. 286-294
Author(s):  
Poornata Jena ◽  
◽  
N. K. Sahoo ◽  
J. K. Mahalik ◽  
◽  
...  
Keyword(s):  
Plant Growth ◽  
Chlorophyll Content ◽  
Meloidogyne Incognita ◽  
Seed Treatment ◽  
Growth Parameters ◽  
Green Gram ◽  
Root Knot Nematode ◽  
Neem Cake ◽  
Untreated Check ◽  
Am Fungus

A pot experiment was carried out in the net house of Department of Nematology, OUAT, Bhubaneswar, Odisha, India during June to August, 2017 on the application of oilcakes (mustard cake and neem cake) and bio-agents (Trichoderma viride, Glomus fasciculatum, Rhizobium leguminosarum) each alone and in combination for the management of root knot nematode (Meloidogyne incognita) in green gram. Result of the experiment indicated that soil application of mustard or neem cake @ 50 g m-2 with AM fungus (Glomus fasciculatum) @ 5 g m-² and seed treatment of Rhizobium @ 25 g kg-1 of green gram seed declined the root knot nematode population, number of galls plant-1, number of eggmass plant-1and root knot index with corresponding increase of plant growth parameters and chlorophyll content in green gram plant as compared to other treatments and untreated check. But integration of mustard cake @ 50 g m-2 at 2 weeks prior to sowing with AM fungus @ 5 g m-2 at 10 days before sowing and seed treatment of Rhizobium @ 25 g kg-1 green gram seed exhibited the lowest M. incognita population 200 cc soil-1 (153.33 J2), number of galls plant-1 (7.0), number of eggmass plant-1 (2.0) and root knot index (2.0) reflecting enhancement of plant growth parameters, number of pods (206.67%), number of nodules (691.17%) over untreated check. This integrated management module also recorded maximum increase in the availability of NPK content in soil and chlorophyll content as compared to other treatments.

scholarly journals Effect of Chitin and Abamectin on Meloidogyne Incognita Infesting Rapeseed

2008 ◽  
Vol 48 (3) ◽  
pp. 365-370 ◽  
Author(s):  
Ahmed Korayem ◽  
Mahmoud Youssef ◽  
Moawad Mohamed
Keyword(s):  
Plant Growth ◽  
Oilseed Rape ◽  
Meloidogyne Incognita ◽  
Growth Parameters ◽  
Field Conditions ◽  
Egg Masses ◽  
Second Stage ◽  
Untreated Check

Effect of Chitin and Abamectin onMeloidogyne IncognitaInfesting RapeseedThe tested rates of chitin (2, 4 and 8 g/m2) significantly (p ± 0.05 and 0.01) reduced the number of galls, egg masses, females and the second stage juveniles (J2) in oilseed rape cvAD201 under field conditions. The plant growth parameters as length and weight of shoots increased at all rates of chitin compared to the untreated check. When using abamectin at the concentrations of 500, 1000 and 1500 ppm, it significantly (p ± 0.05) reduced the above listed nematode criteria and enhanced the plant growth criteria.

scholarly journals Effect of Arka microbial consortium on growth and germination percentage of French bean and Amaranthus seeds

2020 ◽  
Vol 7 (8) ◽  
pp. 16-21
Author(s):  
Priyadarshini Pillai ◽  
M. Punitha ◽  
S. Ranjitha ◽  
R. Ragavi ◽  
G. Roopa ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Microbial Consortium ◽  
Growth Parameters ◽  
Block Design ◽  
Organic Fertilizer ◽  
Integrated Approach ◽  
Germination Percentage ◽  
French Bean ◽  
Seed Vigour

Composting is an alternative for recycling biodegradable organic waste, transforming it into organic fertilizer that can be used as agricultural nutrients, avoiding its disposal in landfills. This study evaluated the composting of Jyoti Nivas college hostel kitchen waste using Arka Microbial Consortium, with a view to its applications on Germination percentage, Seed Vigour Index and plant growth parameters of French bean (Arka arjun) and Amaranthus (Arka arunima) seeds. Arka microbial consortium (AMC) is carrier based product which contain nitrogen fixing, potassium and zinc solubilizing plant growth promoting microbes used as decomposers. The experiment was conducted under greenhouse conditions in a randomized block design, with two treatments and three replicates. Assessments of plant growth parameters were performed and results suggest that using Arka Microbial Consortium with bio compost is suitable for better production French bean (Arka arjun) and Amaranthus (Arka arunima) seeds that may increase soil fertility and this integrated approach could be contributed to improve crop production.

scholarly journals Influence of Microbial Consortium in the Production of China Aster and Gaillardia Seedlings

2021 ◽  
Vol 28 (2) ◽  
pp. 21-28
Author(s):  
Marysovia Fernandez ◽  
Nikhil Sai Nachu ◽  
Ashwin Revanna ◽  
Joseph Davis Bagyaraj
Keyword(s):  
Plant Growth ◽  
Microbial Consortium ◽  
Growth Parameters ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Germination Percentage ◽  
Plant Growth Promoting ◽  
China Aster ◽  
Bacillus Sonorensis

AbstractChina aster and gaillardia are flowering plants with high economic importance in floriculture. In the present investigation, response of China aster and gaillardia seedlings to inoculation with the arbuscular mycorrhizal fungus Funneliformis mosseae + the plant growth-promoting rhizobacterium Bacillus sonorensis was studied by growing in multipots (pro trays). The germination percentage and plant growth parameters: length of shoots, roots and whole seedlings, stem diameter, biovolume index, plant strength, vigor index, dry weight and nutrient uptake, were analyzed 60 days after sowing. The microbial parameters, mycorrhizal root colonization and spore count, and the population of B. sonorensis in the substrate were also determined. The results brought out that growth of inoculated seedlings was significantly improved as compared to uninoculated seedlings. Based on the plant growth and microbial parameters studied, it was concluded that inoculating the substrate in pro trays with the microbial consortium results in producing vigorously growing seedlings.

scholarly journals INTEGRATED MANAGEMENT OF RICE ROOT-KNOT NEMATODE, MELOIDOGYNE GRAMINICOLA UNDER THE DIRECT-SEEDED CONDITION

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Pooja R. M ◽  
Ravindra H ◽  
Narasimhamurthy H B ◽  
Sehgal M ◽  
Dushyanth kumar ◽  
...  
Keyword(s):  
Growth Parameters ◽  
Integrated Management ◽  
Poultry Manure ◽  
Organic Amendments ◽  
Nematode Population ◽  
Root Knot Nematode ◽  
Meloidogyne Graminicola ◽  
Neem Cake ◽  
Untreated Check ◽  
Direct Seeded

The present field experiment was conducted to determine the efficacy of consortium of different bio-agents viz., Psuedomonas fluorescens + Trichoderma harzianum + Bacillus megatherium, organic amendments viz., neem cake, poultry manure and nematicides viz., carbosulfan, carbofuran and fluensulfone for the management of M. graminicola under direct-seeded condition during kharif 2019-20 at the University of Agricultural and Horticultural Sciences, Shivamogga. The results revealed that all the treatments were significantly superior over the untreated check with respect to plant growth parameters and nematode population. However, the plots treated with fluensulfone at 3g/plot was found to be the best treatment as it recorded highest plant height (78.87 cm), root length (18.90 cm) with lowest RKI (2.0), maximum grain yield (36.87 q/ha) and least nematode population (199.00/200g soil) followed by the consortium of bioagents P. fluorescens + T. harzianum + B. megatherium at 20g/m2, carbofuran 3G at 9.9g/ m2, carbosulfan 25 EC at 0.1%, neem cake at 100g/m2 and poultry manure at 100g/m2 respectively.

Effect of plant growth-promoting rhizobacterial treatment on growth and physiological characteristics of Triticum aestivum L. under salt stress

2021 ◽  
Vol 64 (1) ◽  
Author(s):  
Dong Gun Lee ◽  
Ji Min Lee ◽  
Chang Geun Choi ◽  
Hojoung Lee ◽  
Jun Cheol Moon ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Salt Stress ◽  
Plant Growth ◽  
Growth Parameters ◽  
Early Stage ◽  
Triticum Aestivum L ◽  
Germination Percentage ◽  
Root And Shoot Length ◽  
Plant Growth Promoting ◽  
Growth Promoting

AbstractSalinity stress is a serious abiotic stress that affects crop quality and production. Rhizospheric microbes have immense potential in synthesizing and releasing various compounds that regulate plant growth and soil physicochemical properties. The aim of the present study was to evaluate the efficacy of indole-3-acetic acid (IAA)-producing rhizobacteria as biofertilizers under salt stress. Among the isolated strains from various soil samples, Bacillus megaterium strain PN89 with multifarious plant growth-promoting traits was selected and used as a monoculture and co-culture with two other standard strains. The plant promoting activity was evaluated using the paper towel method and pot test to observe the effects on the early stage and vegetative growth of wheat (Triticum aestivum L.). The treatment using PGPR strain presented noticeable but varying effects on plant growth under salt stress, that is, PGPR treatment often displayed a significant increase in germination percentage, root and shoot length, and other growth parameters of wheat compared to those in the non-inoculated control. Thus, these results suggest that B. megaterium PN89 can be applied as a bio-fertilizer to alleviate salt stress in T. aestivum.

scholarly journals Exploitation of IAA Producing PGPR on mustard (Brassica nigra L.) seedling growth under cadmium stress condition in comparison with exogenous IAA application

2019 ◽  
Vol 6 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Amit Kumar Pal ◽  
Sutapa Mandal ◽  
Chandan Sengupta
Keyword(s):  
Plant Growth ◽  
Growth Parameters ◽  
Cadmium Stress ◽  
Plant Growth Promoting Rhizobacteria ◽  
Germination Percentage ◽  
Brassica Nigra ◽  
Stressed Condition ◽  
Root And Shoot Length ◽  
Division Cell ◽  
The Impact

Soil pollution by cadmium (Cd) is a global threat for plants and animals. Exogenous auxin application reduces the Cd stress on plants. Moreover, IAA production by rhizospheric bacteria can play a key role in plant growth and development by promoting cell division, cell elongation, cell differentiation, flowering and lateral root formation. The present study was to evaluate the efficiency of IAA producing, Cd tolerant plant growth promoting rhizobacteria for plant (Brassica nigra L.) growth under Cd stressed condition comparing with the external synthetic auxin application. Lysinibacillus varians and Pseudomonas putida were isolated previously as IAA producing PGPR and selected in this study for their exploitation in plant growth development under Cd stressed condition. The impact of external synthetic IAA application significantly increased the plant growth under Cd amended soil. Whereas, PGPR inoculation also showed significant (p<0.05) elevation in germination percentage, root and shoot length, chlorophyll content and other growth parameters of Cd stressed Brassica plants which were comparative to synthetic IAA application. So, these selected PGPRs (L. varians and P. putida) can be used as biofertilizer which ameliorate the adverse effect of cadmium.

Effect of rhizobacteria strains on the induction of resistance in barley genotypes against Cochliobolus sativus

2020 ◽  
Vol 13 (2) ◽  
pp. 83-92 ◽  
Author(s):  
A. Adam
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Growth Parameters ◽  
Disease Incidence ◽  
Dry Weight ◽  
Cochliobolus Sativus ◽  
Resistance Level ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Barley Genotypes

SummaryEnhancement of the resistance level in plants by rhizobacteria has been proven in several pathosystems. This study investigated the ability of four rhizobacteria strains (Pseudomonas putida BTP1 and Bacillus subtilis Bs2500, Bs2504 and Bs2508) to promote the growth in three barley genotypes and protect them against Cochliobolus sativus. Our results demonstrated that all tested rhizobacteria strains had a protective effect on barley genotypes Arabi Abiad, Banteng and WI2291. However, P. putida BTP1 and B. subtilis Bs2508 strains were the most effective as they reduced disease incidence by 53 and 38% (mean effect), respectively. On the other hand, there were significant differences among the rhizobacteria-treated genotypes on plant growth parameters, such as wet weight, dry weight, plant height and number of leaves. Pseudomonas putida BTP1 strain was the most effective as it significantly increased plant growth by 15-32%. In addition, the susceptible genotypes Arabi Abiad and WI2291 were the most responsive to rhizobacteria. This means that these genotypes have a high potential for increase of their resistance against the pathogen and enhancement of plant growth after the application of rhizobacteria. Consequently, barley seed treatment with the tested rhizobacteria could be considered as an effective biocontrol method against C. sativus.

Sign in / Sign up

Export Citation Format

Share Document