scholarly journals COPING THE ARSENIC TOXICITY IN RICE PLANT WITH MAGNESIUM ADDENDUM FOR ALLUVIAL SOIL OF INDO-GANGETIC BENGAL, INDIA

2021 ◽  
Vol 29 (4) ◽  
pp. 470-476
Author(s):  
Sonali Paul ◽  
Rupshali Dey ◽  
Ipsita Sarkar ◽  
Ankit Chakraborty ◽  
Sahil Mondal ◽  
...  
Keyword(s):  
Rice Field ◽  
Alluvial Soil ◽  
Shoot Biomass ◽  
Total Protein Content ◽  
Elevated Concentration ◽  
Stress Symptoms ◽  
Field Environment ◽  
Malondialdehyde Content ◽  
In Silico Study ◽  
Toxic Metalloid

Arsenic (As3+) is a toxic metalloid found in the earth’s crust, its elevated concentration is a concern for human health because rice is the staple grain in eastern part of India and the waterlogged rice field environment provides opportunity for more As3+ uptake. Magnesium (Mg2+) is an important plant nutrient. Present work is a search for reducing As3+ toxicity in plants through Mg2+ application. The findings are quite impressive, the root to shoot biomass ratio showed more than 1.5 times increase compared to the control. Total protein content increased 2 folds. Carbohydrate and chlorophyll content increased two to three times compared to control. On the other hand, Malondialdehyde content showed a decline with the application of increased Mg2+ dose. The in-silico study shows a better interaction with As3+ in presence of Mg2+ but interestingly without stress symptoms. These findings from the research indicate that Mg2+ application can be effective in reducing As3+ induced stress in plants.

scholarly journals Isolation, screening, degradation characteristics of a quinclorac-degrading bacteria D and its potential of bioremediation for rice field environment polluted by quinclorac

2021 ◽  
Author(s):  
Siqi Huang ◽  
Jiuyue PAN ◽  
Mancuo TUWANG ◽  
Hongyan LI ◽  
Chenyi MA ◽  
...  
Keyword(s):  
Rice Field ◽  
Bacterial Species ◽  
Rice Paddy ◽  
Culture Conditions ◽  
Biochemical Tests ◽  
Field Environment ◽  
Long Duration ◽  
Degrading Bacteria ◽  
Cellulosimicrobium Cellulans ◽  
Physiological And Biochemical

Quinclorac (QNC) is a highly selective, hormonal, and low-toxic herbicide with a long duration. And the growth and development of subsequent crops are easily affected by QNC accumulated in the soil. In this paper, a QNC-degrading strain D was isolated and screened from the rice paddy soil. Through morphology, physiological and biochemical tests and 16Sr DNA gene analysis, strain D was identified as Cellulosimicrobium cellulans sp. And the QNC degradation characteristics of strain D were studied. Under the optimal culture conditions, the QNC-degrading rate was 45.9% after culturing for 21 days. The QNC-degrading efficiency of strain D in the field was evaluated by a simulated pot experiment. The results show that strain D can promote the growth of rice and QNC-degrading effectively. This research could provide a new bacterial species for microbial degradation of QNC and lay a theoretical foundation for further research on QNC remediation .

scholarly journals Foliar Application of Zn Alleviates Salt Stress Symptoms of Pak Choi Plants by Activating Water Relations and Glucosinolate Synthesis

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1528
Author(s):  
Hamideh Fatemi ◽  
Micaela Carvajal ◽  
Juan José Rios
Keyword(s):  
Oxidative Damage ◽  
Water Relations ◽  
Foliar Application ◽  
Membrane Integrity ◽  
Foliar Spray ◽  
Separate Experiment ◽  
Shoot Biomass ◽  
Root Cells ◽  
Pak Choi ◽  
Stress Symptoms

Several studies have related the application of micronutrients such as zinc, iron and molybdenum with alleviation of stress symptoms in horticultural plants. However, there are few studies that correlate the microelements with water relations. The main objective of this study was to determine the effect of the foliar application of Zn on pak choi (Brassica campestris, L.) plants grown under saline conditions. When plants were grown in a nutrient solution containing 0 or 80 mM NaCl, shoot biomass was greatly decreased, while, in a separate experiment, Zn toxicity was observed when it was applied at concentrations above 50 µM as a foliar spray. In a third experiment, low Zn applications, mainly 25 µM, enhanced parameters such as gas exchange, biomass and glucosinolates synthesis in plants grown under saline conditions (80 mM NaCl). Also, Zn application provoked a rise in membrane integrity and decreased oxidative damage in root cells. In conclusion, Zn application decreased oxidative damage and increased the content of glucosinolates, which could act as important signals to improve water uptake and transport and, as a consequence, alleviate salinity stress in pak choi plants.

Distribution and degradation kinetics of cyhalodiamide in Chinese rice field environment

2018 ◽  
Vol 26 (10) ◽  
pp. 2185-2191 ◽  
Author(s):  
Yiping Liu ◽  
Ya Zhang ◽  
Shuangqing Liu ◽  
Yuntao Lü ◽  
Ronghua Lin ◽  
...  
Keyword(s):  
Rice Field ◽  
Degradation Kinetics ◽  
Field Environment ◽  
Kinetics Of

scholarly journals AMPEROMETRIC METHOD FOR THE DETERMINATION OF PROPANIL IN A SIMULATED RICE FIELD ENVIRONMENT

2004 ◽  
Vol 32 (3-4) ◽  
pp. 115
Author(s):  
N. Priyantha ◽  
A. Navaratne ◽  
D.A. Jayawickrama ◽  
U.S.K. Weliwegamage
Keyword(s):  
Rice Field ◽  
Field Environment ◽  
Amperometric Method

scholarly journals SOIL COMPACTION OF TIDAL RICE FIELD FROM USE ALSINTAN (CASE STUDY OF TANJUNG LAGO DISTRICT, BANYUASIN REGENCY)

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Suganda C. Saputra ◽  
M. Eddy Armanto ◽  
Momon Sodik
Keyword(s):  
Physical Properties ◽  
Soil Compaction ◽  
Rice Field ◽  
Soil Physical Properties ◽  
Soil Permeability ◽  
Field Environment ◽  
Combine Harvester ◽  
Materials Used ◽  
The Impact

Combine harvester is a rice harvester that can cut the panicles of standing plants, knock down and clean the grain while crossing the rice fields. The use of combine harvester can potentially damage the soil, the soil becomes hard and the use of fuel causes potential air pollution in the rice field environment. The objectives of this study were to identify the impact of soil compaction due to the use of a combine harvester machine and to determine what physical properties affect the soil compaction due to the use of a combine harvester machine. Equipment and materials used for the sand cone test in this study include:transparent bottles, calibration funnels, plates for sand funnels, hammers, spoons, brushes, chisels, scales and sand. The results showed that soil compaction causes porosity and soil permeability was reduced so that it can inhibit plant growth. Soil compaction affects soil physical properties such as bulk density, porosity, and groundwater content. 

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