scholarly journals Influence of Chromium Treatment on Growth and Nutrient Accumulation of Paddy (Oryza sativa L) Seedlings

2015 ◽  
Vol 31 ◽  
pp. 7-13
Author(s):  
P. Sundaramoorthy ◽  
K. Sankar Ganesh
Keyword(s):  
Oryza Sativa ◽  
Filter Paper ◽  
Chromium Content ◽  
Control Plant ◽  
Dry Weight ◽  
Shoot Length ◽  
Morphological Parameters ◽  
Nutrient Accumulation ◽  
Cr Content ◽  
Cr Addition

The aim of this research is to study accumulation of Chromium along with nutrients and its effect on the growth of Paddy plant (Oryza sativa.L). Thus, paddy seedlings grown in petriplates lined with filter paper undergoing, different treatments of Cr (0, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/L). After one week seedlings were removed and morphological parameters like root length, shoot length and dry weight of plants and accumulation of nutrients along with Cr content were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphological parameters in the treatment plants rather than control plant and Cr addition in the cultures caused enhancement of chromium content paddy seedlings. Similarly nutrient accumulation also affected by increasing concentrations of chromium.

scholarly journals Effect of Chromium on Growth, Biochemicals and Nutrient Accumulation of Paddy (Oryza sativa L.)

2014 ◽  
Vol 23 ◽  
pp. 63-71 ◽  
Author(s):  
M. Nagarajan ◽  
K. Sankar Ganesh
Keyword(s):  
Oryza Sativa ◽  
Chromium Content ◽  
Control Plant ◽  
Dry Weight ◽  
Shoot Length ◽  
Nutrient Accumulation ◽  
Germination Process ◽  
Cr Addition ◽  
Plant Seedlings ◽  
Toxicity Effects

Chromium is a heavy metal; this element is considered as an environmental hazard. Toxicity effects of chromium on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study accumulation of Chromium along with nutrients and its effect on the growth of Paddy plant (Oryza sativa L). Thus, paddy seedlings grown in petriplates lined with filter paper undergoing, different treatments of Cr (0, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/L). After one week seedlings were removed and morpho physiological parameters like root length, shoot length and dry weight of plants and Biochemicals ,accumulation of nutrients along with Cr in roots and shoots were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphophysiology parameters in the treatment plants rather than control plant and Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings. Similarly the biochemicals and nutrient accumulation also affected by increasing concentrations of chromium. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the seedlings under treatment.

scholarly journals Toxic Effect of Zinc on Growth and Nutrient Accumulation of Cow Pea (Vigna unguiculata L.)

2015 ◽  
Vol 43 ◽  
pp. 48-53
Author(s):  
S. Anvar Basha ◽  
M. Selvaraju
Keyword(s):  
Heavy Metal ◽  
Growth And Development ◽  
Control Plant ◽  
Zinc Content ◽  
Dry Weight ◽  
Shoot Length ◽  
Nutrient Accumulation ◽  
Pea Seedlings ◽  
Germination Process ◽  
Zinc Addition

Zinc is a heavy metal; this element is considered as environmental hazard.Toxicity effects of Zinc on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study accumulation of Zinc along with nutrients and its effect on the growth of Cow pea plant (Vignaunguiculata.L). Thus, cow pea seedlings grown in petriplates lined with filter paper undergoing, different treatments of Zinc (control, 10, 25, 50, 75, 100, 150 and 200 ppm). After one week seedlings were removed and morpho physiological parameters like root length, shoot length and dry weight of plants and accumulation of nutrients along with Zinc in roots and shoots were determined. The results indicated that the concentrations more than Zinc 50 mg/L zinc cause the reduction of morphophysiology parameters in the treatment plants rather than control plant and zinc addition in the cultures caused enhancement of zinc content in roots and shoots of cow pea seedlings. Similarly nutrient accumulation also affected by increasing concentrations of cow pea. It was also noted that accumulation of zinc in the roots was much higher than the shoots of the seedlings under treatment.

scholarly journals Toxic Effects of Chromium on Growth of some Paddy Varieties

2015 ◽  
Vol 35 ◽  
pp. 36-44
Author(s):  
M. Nagarajan ◽  
K. Sankar Ganesh
Keyword(s):  
Growth And Development ◽  
Chromium Content ◽  
Dry Weight ◽  
Germination Percentage ◽  
Germination Process ◽  
Seedling Length ◽  
Cr Addition ◽  
Germination And Growth ◽  
Plant Seedlings ◽  
Toxicity Effects

Chromium is a serious heavy metal and it is considered as an environmental hazard. Toxicity effects of chromium on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study the accumulation of Cr and its effect on the Germination and growth of some paddy varieties. Thus, the varieties such as ADT-43, ADT-45, IR-50, TKM-9, CO-33, ASD-16 and CO-43 are grown in petriplates treated with different concentrations of Chromium (0, 5, 10, 25, 50, 100, and 200 mg/L). After one week exposure the seedlings were removed and morphophysiological parameters like germination percentage, seedling length and dry weight of paddy varieties and accumulation of Cr were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphophysiological parameters in the treatments rather than control and Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the paddy seedlings under treatment.

Responses of Weedy Rice to Drought Stress at Germination and Seedling Stages

2013 ◽  
Vol 316-317 ◽  
pp. 451-459 ◽  
Author(s):  
Guo Hua Ding ◽  
Xiao Liang Liu ◽  
Dian Rong Ma ◽  
Xiao Xue Wang ◽  
Guang Yang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Water Stress ◽  
Drought Stress ◽  
Root Length ◽  
Dry Weight ◽  
Shoot Length ◽  
Stress Index ◽  
Weedy Rice ◽  
Fresh Weight ◽  
Cultivated Rice

Drought is a world-spread problem seriously influencing grain production and quality, the loss of which is the total for other natural disasters, with increasing global climate change making the situation more serious. Rice is the staple food for more than 23% of world population, so rice anti-drought physiology study is of importance to rice production and biological breeding for the sake of coping with abiotic and biotic conditions. Much research is involved in this hot topic, but the pace of progress is not so large because of drought resistance being a multiple-gene-control quantitative character. On the other hand, stress adaptive mechanisms are quite different, with stress degree, time course, materials, soil quality status and experimental plots, thus increasing the complexity of the issue in question. Additionally, a little study is related to weedy rice.In order to investigate the effects of drought stress on germination and early seedling growth of weedy rice (Oryza sativa f. spontanea L.) and cultivated rice (Oryza sativa L.), polyethyleneglycol-6000 (PEG-6000) are used to generate -1.33MPa and 0MPa water stress in a laboratory condition (28±3°C). Complete randomized design with three replications is used in the study. After 10 days of germination, shoot length, the longest root length, root fresh weight, root dry weight, shoot fresh weight, shoot dry weight and root numbers are measured; germination percentage, and root to shoot ratio are calculated. Germination index (GI), shoot length stress index (SLSI), root length stress index (RLSI) and dry matter stress index (DMSI) are used to evaluate the response of different genotypes to PEG-induced water stress. Results of ANOVA analysis show that responses of weedy rice accessions and cultivated rice varieties to water stress are significant different, demonstrating the germplasm of weedy rice and cultivated rice are diverse which enables us to screen the germplasm tolerant to drought stress.

scholarly journals DORMANCY OVERCOMING AND PRECONDITIONING IN Mimosa caesalpiniifolia Benth. SEEDS

2020 ◽  
Vol 33 (3) ◽  
pp. 720-727
Author(s):  
HOHANA LISSA DE SOUSA MEDEIROS ◽  
CLARISSE PEREIRA BENEDITO ◽  
NADJAMARA BANDEIRA DE LIMA DANTAS ◽  
JORGE RICARDO SILVA DO COUTO JÚNIOR ◽  
LUIRLA BENTO RAMALHO
Keyword(s):  
Sulfuric Acid ◽  
Experimental Design ◽  
Filter Paper ◽  
Dry Weight ◽  
Shoot Length ◽  
Hot Water ◽  
Distilled Water ◽  
Cost Of Treatment ◽  
Tukey Test

ABSTRACT Seeds of ‘sabiá’ (Mimosa caesalpiniifolia Benth.) have coat dormancy, which hampers the absorption of water and oxygen, thereby delaying germination. Thus, this study aimed to evaluate methods for overcoming dormancy associated with priming on germination and vigor of seeds of ‘sabiá’, considering the efficiency, practicality and cost of treatment. The experimental design was completely randomized, in a 4 x 5 factorial scheme (four methods for overcoming dormancy x five types of priming), constituting 20 treatments with four replicates of 25 seeds. The methods for overcoming dormancy used were tip removal, seed immersion in hot water at 100 °C for three minutes, immersion in sulfuric acid for 10 minutes and intact seeds. For the determination of physiological conditioning of seeds, the imbibition curve with the different priming agents was constructed. Priming was done on filter paper moistened with solutions of mannitol at the potentials of -0.2 MPa (16 hours), -0.4 MPa (24 hours) and -0.6 MPa (36 hours) and only with distilled water for the hydropriming (12 hours) and seeds without priming. The variables analyzed were first count of germination, germination, root length, shoot length and dry weight of seedlings. The data were subjected to analysis of variance by F test and Tukey test at 5% probability. The dormancy of M. caesalpiniifolia seeds should be overcome with the use of hot water (100 °C) for three minutes, without the need for priming.

Foliar applications for amelioration of iron deficiency in peanut (Arachis hypogaea L.)

2018 ◽  
Author(s):  
Shamim Akhtar ◽  
Nazneen Bangash ◽  
Armghan Shahzad ◽  
Sammer Fatima ◽  
Muhammad Akbar ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Arachis Hypogaea ◽  
Foliar Application ◽  
Dry Weight ◽  
Shoot Length ◽  
Fe Deficiency ◽  
Morphological Parameters ◽  
Fresh Weight ◽  
Arachis Hypogaea L ◽  
Ameliorative Effect

In present study, different foliar treatments were applied on peanut to check their ameliorative effect on Fe deficiency. In hydroponics experiments, foliar applications of FeSO4, Fe-EDTA, sequestrene and ferric chloride were applied to check their effect on Fe deficiency chlorosis in two varieties of peanut already screened as BARI-2000 (Fe deficiency tolerant) and BARD-699 (Fe deficiency sensitive). Sequestrene proved to be more effective in increasing the growth of plant. Photosynthetic rate increased up to 58 and 70% in BARI-2000 and BARD-699 respectively as compared to control with foliar application of sequestrene. Similarly higher active Fe concentration was recorded in both genotypes. Up to 14 and 41% increase in active Fe concentration was observed. Various morpho physiological parameters including root length, shoot length, root fresh weight, root dry weight, shoot fresh and shoot dry weights, SPAD values, photosynthetic and transpiration rates showed that BARD-699 was more responsive to foliar applications, while foliar application of sequestrene can be used in correcting Fe deficiency in both genotypes. Active Fe was significantly correlated with different morphological parameters in both genotypes. The results of presense experiment suggested that foliar applications were helpful in correction Fe deficiency in peanut and growth can be enhanced.

scholarly journals Exogenous application of triazoles modifies growth and biochemical characteristics of Lycopersicon esculentum Mill. under water limited conditions

2017 ◽  
Vol 1 ◽  
pp. 171
Author(s):  
Maruthaiya Arivalagan ◽  
Ramamurthy Somasundaram
Keyword(s):  
Amino Acid ◽  
Protein Content ◽  
Glycine Betaine ◽  
Root Length ◽  
Control Plant ◽  
Dry Weight ◽  
Total Sugar ◽  
Shoot Length ◽  
Drought Condition ◽  
Proline Amino Acid

The present investigation was carried out to find the morphological and biochemical variation in Tomato (PKM-1) seedlings under drought with triazole treatments. The pots were arranged in Completely Randomized Block Design (CRBD). The seedlings were allowed to grow up to 30 days with regular water irrigation. The water was irrigated by 4 Days Interval Drought (DID) and the control plants were regularly irrigated. The Triazole (Hexaconazole at 15 mg L-1 and Tebuconazole at 10 mg L-1) treatments imposed on 30, 40 and 50 Days After Sowing (DAS). The plant samples were collected on 40, 50 and 60 DAS. The plants were separated into root, stem and leaves for analysing the morphological variations and biochemical contents. Under drought condition the plant growth was increased in root length and decreased in shoot length, fresh weight and dry weight.  In drought with treatments the root length, shoot length, total leaf area, fresh and dry weight were increased when compared to drought plants but it was lower than the control. Under drought condition the protein content was decreased but the proline, amino acid, total sugar and glycine betaine content were increased when compared to control plant. In drought with triazole treatments the protein content was increased and proline, amino acid, total sugar and glycine betaine were reduced when compared to drought treated plant, however it was lower than that of control. This study was concluded that under drought stress the plant reduced shoot length and protein content, and shows increased root length, proline, amino acid, total sugar and glycine betaine content, but drought with triazole treatments to increase root length, fresh and dry weight and protein content, reduced proline, amino acid, total sugar and glycine betaine content when compared to drought tomato plant

Salinity Tolerance of Black Gram Cultivars During Germination and Early Seedling Growth

2018 ◽  
Vol 51 (3) ◽  
pp. 51-68 ◽  
Author(s):  
M.K. Hasan ◽  
M.S. Islam ◽  
M.R. Islam ◽  
H.N. Ismaan ◽  
A. El Sabagh
Keyword(s):  
Salt Stress ◽  
Salinity Tolerance ◽  
Seedling Growth ◽  
Negative Impact ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Sand Culture ◽  
Black Gram

Abstract A laboratory experiment regarding germination and seedling growth test was conducted with three black gram genotypes tested under three salinity levels (0, 75 and 150 mM), for 10 days, in sand culture within small plastic pot, to investigate the germination and seedling growth characteristics. Different germination traits of all black gram genotypes, like germination percentage (GP), germination rate (GR), coefficient of velocity of germination (CVG) greatly reduced, as well as mean germination time (MGT) increased with increasing salt stress. At high salt stress, BARI Mash-3 provided the highest GP reduction (28.58%), while the lowest was recorded (15.79% to control) in BARI Mash-1. Salinity have the negative impact on shoot and root lengths, fresh and dry weights. The highest (50.32% to control) and lowest reduction (36.39%) of shoot length were recorded in BARI Mash-2 and BARI Mash-1, respectively, under 150 mM NaCl saline conditions. There were significant reduction of root lengths, root fresh and dry weight, shoot length, shoot fresh and dry weight in all genotypes under saline condition. The genotypes were arranged as BARI Mash-1 > BARI Mash-3 > BARI Mash-2, with respect to salinity tolerance.

scholarly journals Sulfur application alleviates chromium stress in maize and wheat

2020 ◽  
Vol 18 (1) ◽  
pp. 1093-1104
Author(s):  
Grzegorz Kulczycki ◽  
Elżbieta Sacała
Keyword(s):  
Adverse Effects ◽  
Mineral Nutrition ◽  
Elemental Sulfur ◽  
Marked Decrease ◽  
Total Yield ◽  
Growth Yield ◽  
Dry Weight ◽  
Total Biomass ◽  
Cr Content ◽  
Chromium Stress

AbstractThis study aimed to examine the influence of increasing doses of chromium (Cr) (26, 39, and 52 mg kg−1 soil) and elemental sulfur (S) (60 mg kg−1 soil) on growth, yield, and mineral nutrition in wheat and maize. Macro- and micronutrients and Cr concentrations were determined in the aboveground parts of plants. All examined doses of Cr caused a marked decrease in the fresh and dry weight of maize. Wheat was more tolerant than maize, and lower Cr doses caused a small but statistically significant increase in the total yield. Wheat accumulated more than twofold Cr than maize, and the concentrations increased with higher Cr concentrations in the soil. The application of S significantly improved the total biomass production and lowered the Cr content in both plants. Cr changed the mineral nutrition in both cereals, but the pattern of changes observed was not the same. Applying S alleviated some adverse effects caused by the Cr. Hence, it is concluded that the application of elemental S may be an effective strategy to reduce adverse effects in plants grown on soil contaminated by heavy metals, especially Cr.

scholarly journals Transfer of Arsenic from Groundwater and Paddy Soil to Rice (Oryza sativa L.) Grain: A Micro Level Study in Chandina, Comilla

2015 ◽  
Vol 12 (2) ◽  
pp. 74-82 ◽  
Author(s):  
Md. Habibur Rahman ◽  
Md. Mohashin Farazi ◽  
Kohinoor Begum ◽  
Md. Serazul Islam
Keyword(s):  
Oryza Sativa ◽  
Irrigation Water ◽  
Agricultural Soil ◽  
Oryza Sativa L ◽  
Arsenic Concentration ◽  
Dry Weight ◽  
Permissible Limit ◽  
Arsenic Content ◽  
Soil Arsenic ◽  
Micro Level

Rice (Oryza sativa L.) is one of the major food crops in many countries. As the cultivation of rice requires huge volume of water, long term use of Arsenic contaminated groundwater for irrigation may result in the increase of arsenic concentration in the agricultural soil and eventually accumulation in rice grains. A micro level study was conducted to investigate the transfer of arsenic from irrigation water and soil to rice plants in the arsenic affected 8 unions of Chandina upazilla, Comilla district. The level of arsenic in irrigation water (0.12±0.08 and 0.67±0.07 mg l-1) was much above the WHO permissible limit of 0.01 mg l-1 for drinking water and FAO permissible limit of 0.10 mg l-1 for irrigation water. The total soil arsenic concentrations ranged from 3.21±0.80 to 8.74±2.83 mg kg-1 dry weight of soil, which was below the maximum acceptable limit for agricultural soil of 20.0 mg kg-1 as recommended by the European Community. The accumulation of arsenic in the grain ranged from 0.12±0.04 to 0.58±0.06 mg kg-1 in Boro and 0.16±0.04 to 1.06±0.20 mg kg-1 in T. Aman. Except grain sample (T. Aman) of one union, the grains in both Boro and T. Aman of all unions did not exceed 1.0 mg kg-1 dry weight of arsenic (the permissible limit of arsenic in rice according to WHO recommendation). Thus, till now rice has remained harmless for consumption in the study area. The results clearly showed that the arsenic content in the grains of Boro rice is correlated to the intensity of arsenic contamination of irrigation water and soil. The Agriculturists 2014; 12(2) 74-82

Sign in / Sign up

Export Citation Format

Share Document