A Beneficial Effect of Cobalt on the Growth of the Rubber ...

It shows that cobalt has a beneficial effect on the growth of a higher plant; but this, in itself, does not prove it to be an indispensable nutrient element. ... It shows that cobalt has a ...

Effect of cobalt ferrite (CoFe2O4) nanoparticles on the ...

Apr 15, 2016· Effect of cobalt ferrite (CoFe2O4) nanoparticles on the growth and development of Lycopersicon lycopersicum (tomato plants). ... 250mgL(-1) treatments. Catalase activity in tomato roots and leaves decreased in plants exposed to CoFe2O4 NPs. Tomato plants were able to tolerate CoFe2O4 NPs concentrations up to 1000mgL(-1) without visible toxicity ...

Effect of Different Concentrations of Cobalt on Pigment ...

Effect of Different Concentrations of Cobalt on Pigment Contents of Soybean K. Jayakumar, Cheruth Abdul Jaleel and P. Vijayarengan Department of Botany, Annamalai University, Annamalainagar 608 002, Tamilnadu, India Abstract: A pot culture experiment was conducted to estimate the effect of cobalt (0, 50, 100, 150, 200 and

Interactive effect of salinity and cobalt on tomato plant

0.0, 7.5, 15.0, 22.5, and 30.0 ppm cobalt. These effect of salinized irrigation water on chlorophyll content concentrations were added once at the beginning of the of tomato plants followed a linear relationship with the experiment. Moisture content in the pots were kept increase of cobalt in plant media included its effect n i

(PDF) Uptake and Accumulation of Cobalt in Plants | yas ...

Cobalt increased the concentration and cellular functions; and damage the stucture of DNA. To uptake of cobalt in plants. Cobalt treatment at 50 mg kg-1 have a physiological or toxic effect, most metal ions have soil level proved to be favourable for the overall to enter the microbial cell.

COMPARATIVE EFFECTS OF COBALT, NICKEL AND COPPER ON PLANT ...

An account is given of the present position of our knowledge with regard to the distribution and the physiological importance of nickel and cobalt, in relation to plants and animals. 2. Experiments on barley and broad beans were carried out in water cultures with the sulphates and chlorides of cobalt…

Effects of Radiation on Plants and Animals

ADVERTISEMENTS: Read this article to learn about the effects of radiation on plants and animals. Effects of Radiation on Plants: According to the Health Physics Society radiations have a positive effect on plant growth at lower radiation levels and harmful effects at high levels. Plants need some types of non-ionizing radiation like sun-light for photosynthesis.

Iron Oxide and Titanium Dioxide Nanoparticle Effects on ...

In this study, we investigated the effect of positively and negatively charged Fe3O4 and TiO2 nanoparticles (NPs) on the growth of soybean plants (Glycine max.) and their root associated soil microbes. Soybean plants were grown in a greenhouse for six weeks after application of different amounts of NPs, and plant growth and nutrient content were examined.

Cobalt in plants and soil - Got A Plant Problem? Plantprobs

Cobalt. Cobalt is a trace element in plants (it has not been proven to be essential for plant life). It is a component of a number of enzymes and increases the drought resistance of seeds. In legumes, cobalt is important for nitrogen fixation by the bacteria that associate with legumes. It is also a component of vitamin B12 so is important for ...

... - JSTOR

Title: Effects of Cobalt on Plants Created Date: 20160810014116Z

The Role of Various Elements in Plant Growth

Cobalt (Co) — Although cobalt has not been proven essential for higher plant growth, modulating bacteria need it for fixing atmospheric N in legumes. Learn More Vanadium (V) — Although it is relatively obscure, vanadium has been shown to have a role in plant nutrition.

The protective effects of cobalt on potato seedling leaves ...

The protective effects of cobalt on potato seedling leaves during osmotic stress were reported and discussed in this paper. The results showed that the membrane damage was significantly alleviated after 24 h of osmotic stress when cobalt of appropriate concentrations was added in PEG solutions.

Effect of Cobalt in Plants on Animals - biocyclopedia.com

Cobalt uptake by plants allows its access to animals. Kosla demonstrated the effect of irrigation of meadows with the water of the river Ner in Poland on the levels of iron, manganese, and cobalt in the soil and vegetation. Experiments were also carried out on young bulls (Bos taurus L.) fed with the hay grown on these meadows.

The effect of cobalt on the growth of Rhizobium japonicum ...

From the results presented here, it seems that cobalt may play a major role in the bacteria regardless of whether it is grown with or without the leguminous plant. Further investigations concerning the specificity of cobalt for the growth of Rhizobium and the relationship of …

Nickel and Cobalt Effects on Mize Grmination - IPCBEE

plants [7]. Cobalt is probably beneficial for plants meaning that the adequate supply might be necessary to maintain a high production [8]. In this research we have investigated to the effect of different concentrations of Nickel and cobalt on maize seeds germination. 2. Material and Method

Toxic Metal: The Health Dangers of Cobalt

May 29, 2015· Cobalt Exposure. Industrial plants may leak cobalt and other toxic metals into the environment. Once cobalt particles enter the atmosphere, they settle to the ground and enter the food and water supply; most of the population is exposed to cobalt through food, water, and air. Cobalt makes its way through the environment and cannot be destroyed.

Cobalt Toxicity Effects on Growth and Metabolism of Tomato ...

Visible effects of excess cobalt (Co) manifested on tomato at 0.5 mM Co, after 3 days of metal supply to 40 day old plants. The symptoms of excess cobalt diffused chlorosis of young leaves from base and later necrotic spots appeared on chlorotic areas.

Beneficial Effects of Cobalt on Plants - biocyclopedia.com

Cobalt has long been known to be a micronutrient for animals, including human beings, where it is a constituent of vitamin B12. However, its presence and function has not been recorded to the same extent in higher plants as in animals, leading to the suggestion that vegetarians and herbivorous animals need to ingest extra cobalt or vitamin B12 in diets to prevent deficiency

ATSDR - Public Health Statement: Cobalt

Jan 21, 2015· This Public Health Statement is the summary chapter from the Toxicological Profile for cobalt. It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs™, is also available. This information is important because this substance may harm you.

Effect of Cobalt and Nickel on Plant Growth, Yield and ...

Effect of Cobalt and Nickel on Plant Growth, Yield and Flavonoids Content of Hibiscus sabdariffa L. 12 2Aziz, Eman E., Nadia Gad and Nadia, M. Badran 1Cultivation and Production of Medicinal and Aromatic Plants Dept. 2Plant Nutrition Dept. National Research Centre, Cairo, Egypt.

The Effects of Cobalt, Copper, and Chromium in the Garden

On the other hand, soils near mining and melting facilities may contain very high amounts of cobalt, so that the uptake by animals through eating plants can cause health effects. Cobalt will accumulate in plants and in the bodies of animals that eat these plants, but cobalt …

Effects of cobalt on plants | SpringerLink ... - Springer

Abstract. Cobalt, a transition element, is an essential component of several enzymes and co-enzymes. It has been shown to affect growth and metabolism of plants, in different degrees, depending on the concentration and status of cobalt in rhizosphere and soil.

Effect of cobalt on growth and yield of fenugreek plants

Effect of cobalt on growth and yield of fenugreek plants Nadia Gad and Abdel-Moez, M. R. Plant Nutrition Deparetment, National Research Centre, EL-Bohooth St., Dokki, Cairo, Egypt Abstract: Two field experiments were carried out to evaluate cobalt role on fenugreek growth, yield quantity and quality.

EFFECT OF COBALT ON CHLOROPHYLL AND CAROTENOID …

The effect of increased concentrations of cobalt (Co) (0, 50, 100, and 200 mg kg −1) and treatment with sewage sludge was investigated on the chlorophyllic pigments and carotenoids of tomato (Lycopersicon esculentum Mill cv. Ramy) plants, grown in a calcareous soil.

(PDF) Effect of heavy metals on germination of seeds

Effect of heavy metals on germination of seeds. ... cadmium, copper, cobalt, chromium and mercury are important environmental pollutants that cause toxic effects to plants; thus, lessening ...

Effects of cobalt oxide nanomaterial on plants and soil ...

Purpose. Metallic nanomaterials (MNM) like cobalt oxide (nano-Co 3 O 4) are currently attracting enormous interest owing to their unique size and shape-dependent properties and potential applications in various sectors.The aims of this study were to assess the toxicity of nano-Co 3 O 4 and to propose a risk limit through the estimation of a Predicted No Effect Concentration (PNEC) for this MNM ...

Effect of heavy metals on germination of seeds

Heavy metals including lead, nickel, cadmium, copper, cobalt, chromium and mercury are important environmental pollutants that cause toxic effects to plants; thus, lessening productivity and posing dangerous threats to the agro-ecosystems. They act as stress to plants and affect the plant physiology.

Effect of Varying Concentration of Nickel and Cobalt on ...

To study the effect of nickel and cobalt on plant growth and productivity of chickpea, 15 cm clay pots were filled with 1.5 kg autoclaved soil (clay, sand, compost 2:1:1). In each pot 550 ml metal ...