scholarly journals The Impact of Dairy Effluent on Germination Parameters of Seeds of Mung bean (Vigna radiata) and Mustard (Brassica nigra)

2020 ◽  
Vol 7 (4) ◽  
pp. 170-175
Author(s):  
Jyoti Kapil ◽  
◽  
Neetika Mathur ◽  

The advancement of a country depends upon its industrialization. Of all industrial sectors, the food processing units have highest consumption of water and are biggest producers of effluent per unit of production.The concentration and composition of the effluent depends upon operating methods andthe size and design of the processing plant.The dairy industry generates on an average 6-10 litres of waste water per litre of the milk processed. It has relatively high organic matter, suspended solids, trace organic nutrients which are essential for growth of crop plant. Thus, the utilization of the dairy effluent for irrigation can be an eco friendly approach for its disposal. The present study was carried out to study the influence of dairy effluent on seed germination, seedling growth and biomass production in mung bean (Vigna radiata) and mustard (Brassica nigra). The seeds of both the plant species were grown in petriplates and pots irrigated with various concentrations of dairy effluent (20, 40, 60, 80 and 100%). The dairy effluent concentration of 20% was more favorable for total growth parameters viz., the germination percentage, the shoot length, dry weight and wet weight both in mustard and mung bean. Among different concentrations, 100% concentration of effluent caused inhibitory effect. Thus, it is recommended that only after suitable dilution, the dairy effluent can be effectively used for irrigation.

2012 ◽  
Vol 65 (3) ◽  
pp. 69-74 ◽  
Author(s):  
Naheed Ikram ◽  
Shahnaz Dawar

Root rot fungi cause severe losses of crop plants, so the present work was carried out to determine the effect of <em>Aerva javanica </em>parts powder on root infecting fungi of mung bean (<em>Vigna radiata </em>(L.) and cowpea (<em>Vigna unguiculata </em>(L.) Walp.). <em>A. javanica </em>parts (stem, leaves and flower) were used as soil amendments at 0.1, 1 and 5% to check the effectiveness on growth parameters. All the plant parts showed a significant reduction in root rot fungi like <em>Fusarium </em>spp., <em>Rhizoctonia solani </em>Kuhn, and <em>Macrophomina phaseolina </em>(Tassi) Goid. It was noted that germination percentage, fresh weight, leaf area and number of nodules were significantly higher and the inhibitory effect on root rot fungi increased when the soil was amended with <em>A. javanica </em>leaves at 1%. Thus, among all the treatments, <em>A. javanica </em>leaves at 1% were found to be the most effective against root rot fungi.


2015 ◽  
Vol 2 (2) ◽  
pp. 114-117
Author(s):  
Anbarasan R ◽  
Prabhakaran J

Various concentrations (5%, 10%, 15% and 20%) of aqueous extracts prepared from two weed species namely Ageratum conyzoides L. and Cleome viscosa L. and used for the present experiments to determine their allelopathic potential on growth and developmental changes on sesame (Sesamum indicum L.). The weed extracts showed an inhibitory effect on germination percentage, root and shoot growth, and fresh and dry weight of sesame seedlings. The extracts of A.conyzoides had more inhibitory effect at 20%concentration,than that of C.viscosa on growth parameters of sesame.


2017 ◽  
Vol 4 (2) ◽  
pp. 173-177
Author(s):  
Kavitha D ◽  
Prabhakaran J ◽  
Arumugam K

The term allelopathy refers to the detrimental effects of higher plants of one species (the donor) on the germination, growth, or development of another species (the recipient). In the present studyallelopathic influence of weed species, Echinochloa colona (L.) Link, (Poaceae), Cleome viscosa L. (Capparidaceae) and Ammania baccifera L. (Lythraceae) on green gram (Vigna radiata (L.) Wilczek were investigated. The individual and combined residues of three weeds wereincorporated to the soil at the quantities of 0,1,2,3 and 4% (w/w) in the plots and the germination, seedling growth dry weight of green gram were assessed. The results showed that all the concentrations of combined weed residues exhibited higher degree of inhibitory effects than the individual weed residues in all the parameters employed in the study except at 1% of C. dactylon, where insignificant growth promotion observed. The percentage of inhibitory effects of weedresidues increases with increasing the magnitude of the residues. The degree of reduction percentage of all the growth parameters was concentration dependent.Among the three weeds, A. baccifera had more retarding effects on the growth of green gram and the order of inhibitory effect of three weed was A.baccifera, C. viscosa and E. colona.


2019 ◽  
Vol 6 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Amit Kumar Pal ◽  
Sutapa Mandal ◽  
Chandan Sengupta

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.


Water ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 77
Author(s):  
Cristina Adochite ◽  
Luminita Andronic

In the last years, nanoparticles such as TiO2, ZnO, NiO, CuO and Fe2O3 were mainly used in wastewater applications. In addition to the positive aspects concerning using nanoparticles in the advanced oxidation process of wastewater containing pollutants, the impact of these nanoparticles on the environment must also be investigated. The toxicity of nanoparticles is generally investigated by the nanomaterials’ effect on green algae, especially on Chlorella vulgaris. In this review, several aspects are reviewed: the Chlorella vulgaris culture monitoring and growth parameters, the effect of different nanoparticles on Chlorella vulgaris, the toxicity of photocatalyst nanoparticles, and the mechanism of photocatalyst during oxidative stress on the photosynthetic mechanism of Chlorella vulgaris. The Bold basal medium (BBM) is generally recognized as an excellent standard cultivation medium for Chlorella vulgaris in the known environmental conditions such as temperature in the range 20–30 °C and light intensity of around 150 μE·m2·s−1 under a 16/8 h light/dark cycle. The nanoparticles synthesis methods influence the particle size, morphology, density, surface area to generate growth inhibition and further algal deaths at the nanoparticle-dependent concentration. Moreover, the results revealed that nanoparticles caused a more potent inhibitory effect on microalgal growth and severely disrupted algal cells’ membranes.


2016 ◽  
Vol 2 (1) ◽  
pp. 74-81 ◽  
Author(s):  
Sakil Mahmud ◽  
Shayla Sharmin ◽  
Bishan Lal Das Chowdhury ◽  
Mohammad Anowar Hossain ◽  
Muhammad Javidul Haque Bhuiyan

To explore the possibility of using methyl jasmonate (MeJA) for alleviation of salt stress, the present study was conducted where six rice varieties (BRRI dhan31, BRRI dhan46, Gota, Kajalsail, Pokkali and Pengek) were grown in non saline (0 dSm-1), saline (12 dSm-1), saline (12 dSm-1) + 10 ?M MeJA and saline (12 dSm-1) + 20 ?M MeJA conditions at germination stage (till the 9 days). MeJA was applied by imbibing seeds in it for 24 hours. To evaluate the effect of MeJA on saline stressed plant at germination stage, change in growth parameters namely germination percentage, shoot and root length, fresh and dry wt. of shoot, fresh and dry wt. of root and biochemical component- activity of alpha-amylase were monitored. Salinity had a minimum effect on final germination percentage (FGP) of rice varieties, but delayed in attaining it. MeJA had least positive effect. Salinity significantly reduced the shoot and root length, fresh and dry weight of all the varieties. MeJA had more decreasing effect in susceptible varieties while increasing effect in moderately tolerant and tolerant. Activity of alpha-amylase in germinated seed varied from 0.051 mg to 0.111 mg mal./mg tissue. At 12dSm-1 salinity, susceptible and moderately tolerant varieties showed significant reduction but tolerant showed significant increase. MeJA intensified the negative effect further in susceptible varieties. In tolerant and moderately tolerant varieties, increment in activity took place and 10 ?M had a better effect over 20 ?M MeJA.Asian J. Med. Biol. Res. March 2016, 2(1): 74-81


2015 ◽  
Vol 67 (3) ◽  
pp. 993-1000 ◽  
Author(s):  
Lydia Shtereva ◽  
Roumiana Vassilevska-Ivanova ◽  
Tanya Karceva

An experiment was carried out hydroponically under laboratory conditions to investigate the effect of salt stress on several physiological and biochemical parameters of three sweet corn (Zea mays L. var. saccharata) genotypes: lines 6-13, C-6 (pollen source) and their heterotic F1 hybrid ?Zaharina?. The degree of salinity tolerance among these genotypes was evaluated at three different sodium chloride (NaCl) concentrations: 0 mM, 100 mM, 125 mM and 150 mM. Seed germination, plant growth and biochemical stress determining parameters such as malondialdehyde (MDA), proline content and hydrogen peroxide (H2O2) levels were compared between seedlings of lines and hybrid. The obtained results indicated that both lines and hybrid have similar responses at different salinity levels for all examined traits. All the seedlings? growth parameters, such as germination percentage, root length, shoot length, root and shoot fresh and dry weight, decreased with increasing salinity level. MDA, proline and H2O2 increased at different saline conditions in comparison to the control. Based on the results, of the three genotypes examined, the hybrid Zaharina, followed by line C-6, was more salt-sensitive than line 6-13 in salt stress condition.


2018 ◽  
Vol 7 (1) ◽  
pp. 60-84
Author(s):  
Monday Ubogu ◽  
Lucky O. Odokuma ◽  
Ejiro Akponah

P. australis, E. crassipes (in mangrove swamp) and S. officinarum (in rainforest) are capable of tolerating some levels of crude oil in soil. However, some important growth characteristics such speedy growths, extensive root system and increased biomass desirable for efficient rhizoremediation are depressed. To cushion this suppressive effects, plants were subjected to the following treatments: Plant + Soil (PS) (Control); Plant + Soil + Oil (PSO); Plant + Soil + Oil + Fertilizer (PSOF); Plant +Soil + Oil + Fertilizer + Microorganisms (PSOFM); and Plant + Soil + Fertilizer + Microorganisms + Solarization (PSOFMS). Treatments were monitored for 120 days to determine their effects on the following growth parameters: Germination, germination percentage, height, and root length, dry weight, and leaf area. Results indicated that treatments PSOF, PSOFM and PSOFMS enhanced all growth parameters over contaminated untreated soil (PSO) with the exception of germination in P. australis and S. officinarum; while root length, leaf area in E. crassipes were statistically the same for PS, PSO, PSOFM and PSOFMS (P ˂ 0.05). Overall, growth enhancement efficiencies of the applied treatments were in the order: PSOFM ˃ PSOF ˃ PSOFMS. Thus, growth of these plants can be enhanced in crude oil contaminated soil by the above treatments for efficient rhizoremediation.


Our Nature ◽  
1970 ◽  
Vol 8 (1) ◽  
pp. 26-33 ◽  
Author(s):  
S. Dawar ◽  
M.J. Zaki ◽  
N. Ikram ◽  
M. Tariq

An experiment was carried out for the control of root rot fungi such as Fusarium spp., Macrophomina phaseolina (Tassi) Goid., and Rhizoctonia solani Kühn in Sunflower (Helianthus annus L.) and Mung bean (Vigna radiata (L.) R. Wilczek). Seeds were treated with gamma radiation (60Co) for 0, 2, 8 and 16 minutes intervals and soil was drenched with different antagonists such as Trichoderma harzianum Rifai, Pseudomonas aeruginosa (Schroeter) Migula and Rhizobium meliloti Dangeard. All the antagonists significantly increased germination percentage, shoot length, root length, shoot weight, root weight, leaf area and showed complete suppression of M. phaseolina and R. solani observed in mung bean and sunflower. In both crops, mostly growth parameters increased as the exposure of gamma rays increased whereas in some cases it decreased. P. aeruginosa and R. meliloti were observed to be satisfactory biocontrol agents followed by T. harzianum whereas all exposure time of irradiation of gamma rays (60Co) to seeds of mung bean and sunflower were found to be best.DOI: 10.3126/on.v8i1.4309


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