Lethal dose and effect of gamma ray on ADT (R ) 4 7 rice. 331 total seedling length and vigour index in the present investigation. The highest dose of 350Gy caused severe reduction in all the parameters, while the lowest dose (150Gy) showed the highest expression for these characters.

Logarto, Parra A., Silva, Yhebra R., Guerra, Sardinas, I, and Iglesias, Buela L. Comparative study of the assay of Artemia salina L. and the estimate of the medium lethal dose (LD50 value) in mice ...

Determination of the lethal dose (LD50) to the mice of the two culture filtrates after freeze drying was done using three weeks old male albino mice that weighed between 20g and 40g body weight. Injecting the reconstituted culture filtrates intraperitoneally the LD50 of CA5 and CAI0 antibiotics were determined and found to be and /Kg ...

The median lethal dose (LD 50) of the plant extract was determined by method of Lorke (1983)[12] using 35 rats weighing between 60 – 100g. In the first phase, 15 rats were divided into 3 groups of 5 rats each and were treated with the aqueous leaf extract of the plant at dosages of 1000, 1500 and 2000mg/kg body weight intraperitoneally.

Determination of Lethal Dose 50 (LD 50) The LD 50 was determined using Microsoft Excel 2010 based on the number of survival plants at the different doses of gamma radiation. A regression equation was used to determine the LD 50. Data were recorded for a percentage .

Lethal dose (LD 50) One such populationlevel measure is the median lethal dose, LD 50 (lethal dose, 50%). This is defined as the dose required to kill half the members of a specific animal population when entering the animal's body by a particular route.

Botulinum toxin is the most acutely lethal toxin known. Intoxication can occur naturally as a result of either wound or intestinal infection or by ingesting preformed toxin in food. The estimated human median lethal dose (LD 50 ) of type A toxin is – ng /kg intravenously or intramuscularly, 10–13 ng/kg when inhaled, or 1000 ng/kg ...

The LD 50 for Jerusalem artichoke genotypes HEL 65 and CN 52867 were 22 and 27 Gy, respectively. Plant height and germination percentage decreased with increasing doses of gamma rays. Low dose at 5 Gy could be used to increase tuber yield of these two genotypes of Jerusalem artichoke.

Acute toxicity studies and lethal dose (LD 50) test Acute toxicity studies of the methanol extract of S. dulcificum pulp was carried out by the Lorke (1983) method. A total of twentytwo conducted in two phases. In phase I, three groups of nine (9) mice per group were administered one dose of the extract .

Determination of percentage yield The percentage yield of the extract was calculated using the following formular % yield = × Assay of biological activity Acute toxicity and lethality Investigation on acute toxicity of the extract with estimation of the median lethal dose (LD .

The median lethal dose (LD 50) of the plant extract was determined by method of Lorke (1983) [27] using twelve [12] rats weighing between 100 – 190g. In the first phase, four rats were divided into two groups of two rats each and were treated with the aqueous leaf extract of the plant at dosages of 1600 and 2000mg/kg body weight intraperitoneally.

Herbal preparations in solid dosage form for oral use (tablets, containing 10 mg or 30 mg of TECA extract per tablet). Herbal preparations in solid or semisolid dosage forms for cutaneous use (cream or ointment containing 1% dry extract, cutaneous powder containing 2% dry extract, sterilised impregnated dressing with 2 g of mass 1%/ dm²)

A PILOT STUDY ON THE DETERMINATION OF ANTIOXIDANT POTENTIAL AND LETHAL ... the lethal dosage of fruit extract of . Terminalia chebula, a traditional medicinal plant widely used for various ailments. ... The reducing power of the plant extract was determined by the method of Oyaizu et al[18] Varying concentrations of the extracts

The entire plant or any plant part may exhibit this property. Most commonly the compounds responsible are cyanogenic glycosides [ O βglycosides of αhydroxynitriles (cyanohydrins)], relatively polar, watersoluble compounds, usually accompanied by βglycosidases that cleave sugars from the glycosides (Fig. 1).

intake of 100 mg of atropine is considered the minimum lethal dose, in children a few milligrams. In case of (S)hyoscyamine an oral dose of 10 mg and more is said to be lethal in human adults. 6. Information on repeated dose toxicity was not available. 7. No studies on genotoxicity or reproductive effects including teratogenicity ofAtropa

DETERMINATION OF LETHAL DOSE AND EFFECT OF GAMMA RAY ON GERMINATION PERCENTAGE AND SEEDLING PARAMETERS IN ADT (R) 47 RICE a*Rajarajan, D., bSaraswathi,R. cSassikumar, D. a,b Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore641003, .