Wyniki wyszukiwania

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Chromium toxicity in Sesbania sesban (L.) Merr

100%

Bakiyaraj R., Mahakavi T., Baskaran L.

International Letters of Natural Sciences

|

2014

|

tom 04

Chromium is one of the most common toxic metals present in the environment that induces various toxic effects in plants. A pot experiment was conducted to determine the effects of chromium on germination percentage, seedling growth, chlorophyll ‘a’, ‘b’ and proline content of Sesbania sesban (L.) Merr. The seedlings were treated with different concentrations of control, 0.10, 0.25, 0.50, 0.75 and 1.00 g kg-1 of chromium. The parameters such as germination percentage, root and shoot length, seedling fresh weight dry weight, chlorophyll ‘a’, ‘b’ and proline content of leaves were measured. Our results indicated that a significant inhibitory effect was observed at all levels of chromium compared to control. Increasing the concentration of chromium to 1.00 g kg-1 showed a significant decrease in seed germination, shoot and root length, fresh weight, dry weight and chlorophyll ‘a’ and ‘b’ content of plant. While proline, catalase and peroxidase contents were increased by increasing Cr concentration. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the seedlings under treatment.

2

Phytoremediation of quizalofop-ethyl contaminated soil using Sesbania sesabn L.

100%

Mahakavi T., Baskaran L., Bakiyaraj R., Mycin R.

International Letters of Natural Sciences

|

2015

|

tom 44

In this field experiments, sandy loam soil was treated with different concentration of herbicide (Quizalofop-ethyl) 0.5, 1.0, 1.5 and 2 per cent. Sesbania sesban L. seeds were sown in all treated soil. The germination percentage, morphological and enzymes activities were measured after 20, 40 and 120 days. The results indicate that the germination per cent, morphological parameters were increased in control then it was gradually decreased with increasing the herbicide concentration. The enzymes like catalase and peroxidase activity were increased in control then it was decreased with increasing the concentration. Whereas the polyphenoloxidase acticity was lower in control and it was increased with increasing the herbicides concentration. Hence, after 120 days plants were harvested and the plant powder was analyzed for absorption of herbicide by plant with the help of Gas chromatography mass spectrum (GCMS). The obtained data showed that herbicide absorption was concerned in quiazalofop-ethyl treated plant when compared to control. This study expose that herbicide reduced by Sesbania sesban L.

3

Effect of herbicide (Quizalofop-p-ethyl) on growth, photosynthetic pigments, enzymes and yield responses of blackgram (Vigna mungo L.)

88%

Mahakavi T., Bakiyaraj R., Baskaran L., Rashid N., Ganesh K. S.

International Letters of Natural Sciences

|

2014

|

tom 04

The recent experiment was conducted to assess the effect of herbicide (quizalafop-p-ethyl) on growth, photosynthetic pigments, enzymes and yield of Black gram (Vigna mungo L.) during the summer season 2013-2014. This experiment comprised black gram (variety ADT 3) and different concentrations of herbicide (quizalafop-p-ethyl) treatments compared with control. Reduction in growth, photosynthetic pigments, enzymes and yield parameters were observed with 0.5 % herbicide application followed by 1 %, 1.5 % and 2 %, out of all treatments 0.5 % shows least reduction. Thus, 0.5 % herbicide application is the safest way for weed control in Black gram field as it showed least adverse effect on growth, photosynthetic pigments, enzymes and yield of crop when compared with other treatments.

Ograniczanie wyników

3 International Letters of Natural Sciences

3 Bakiyaraj R.

3 Baskaran L.

3 Mahakavi T.

1 Ganesh K. S.

1 Mycin R.

1 Rashid N.

1 2015

2 2014

Chromium toxicity in Sesbania sesban (L.) Merr

Phytoremediation of quizalofop-ethyl contaminated soil using Sesbania sesabn L.

Effect of herbicide (Quizalofop-p-ethyl) on growth, photosynthetic pigments, enzymes and yield responses of blackgram (Vigna mungo L.)