Growth photosynthetic activity and antioxidant responses of mycorrhizal and non-mycorrhizal bajra (Pennisetum glaucum) crop under salinity stress condition

2011 ◽  
Vol 30 (3) ◽  
pp. 265-271 ◽  
Author(s):  
Mahesh Borde ◽  
Mayura Dudhane ◽  
Paramjit Jite
Keyword(s):  
Salinity Stress ◽  
Stress Condition ◽  
Photosynthetic Activity ◽  
Pennisetum Glaucum ◽  
Antioxidant Responses

​Antioxidant Responses of Ricebean [Vigna umbellata (Thunb.) Ohwi and Ohashi] Seedling under Iso-osmotic Potential of Salinity and Drought Stress

2021 ◽  
Author(s):  
Kousik Atta ◽  
Jahnavi Sen ◽  
Pravachan Chettri ◽  
Anjan Kumar Pal
Keyword(s):  
Drought Stress ◽  
Salinity Stress ◽  
Osmotic Potential ◽  
West Bengal ◽  
Constitutive Expression ◽  
Growth And Yield ◽  
Antioxidant Responses ◽  
Nutrient Imbalance ◽  
Vigna Umbellata ◽  
Osmotic Potentials

Background: Salinity and drought are the major abiotic stresses and both can cause osmotic imbalances. Drought stress directly results in osmotic stress whereas salinity problem firstly disrupts the water balance and eventually induces ion toxicity which results in cyto-toxicity, metabolic impairment, nutrient imbalance and finally poor crop growth and yield. The co-ordinated up-regulation or constitutive expression of antioxidative system in plants is the main defense in plant against these stresses and thus the present experiment was undertaken to study the antioxidant responses under drought and salinity stress at seedling stage in ricebean (Bidhan 1). Methods: For studying the effect of iso-osmotic potential of salinity and drought stress solutions of NaCl and PEG 6000 with -0.2 MPa (50mM NaCl and 10% PEG), -0.4 MPa (100 mM NaCl and 12% PEG) and -0.8 MPa (200mM NaCl and 18% PEG) osmotic potential were used. The experiment was done in the laboratory of Department Plant Physiology, Bidhan Chandra Krishi Viswavidyalaya (BCKV), Mohanpur, Nadia and West Bengal in the year 2017-18 and 2018-19. Result: Under moderate to high intensity of osmotic stresses the leaf proline content decreased. The mild and medium stress treatments induced much higher activity of GPOX and APX in the leaf which then decreased somewhat as the intensity of stress increased. The experiment showed that drought stress was found to produce more drastic effects on seedling growth in ricebean as compared to the salinity stress at iso-osmotic potentials.

Silicon Application to Rice Root Zone Influenced the Phytohormonal and Antioxidant Responses Under Salinity Stress

2013 ◽  
Vol 33 (2) ◽  
pp. 137-149 ◽  
Author(s):  
Yoon Ha Kim ◽  
Abdul Latif Khan ◽  
Muhammad Waqas ◽  
Jae Kyoung Shim ◽  
Duck Hwan Kim ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Root Zone ◽  
Rice Root ◽  
Antioxidant Responses

Model analysing the antioxidant responses of leaves and roots of switchgrass to NaCl-salinity stress

2012 ◽  
Vol 58 ◽  
pp. 288-296 ◽  
Author(s):  
Quanzhen Wang ◽  
Chunhui Wu ◽  
Bao Xie ◽  
Yuan Liu ◽  
Jian Cui ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Antioxidant Responses ◽  
Nacl Salinity ◽  
Leaves And Roots

scholarly journals Effects of biofertilizer and manure application on growth rate and chlorophyll content of spinach (Amaranthus tricolor L.) under salinity stress condition

2021 ◽  
Vol 33 ◽  
pp. 05003
Author(s):  
Dwi Umi Siswanti ◽  
Okky Shavira Riesty
Keyword(s):  
Growth Rate ◽  
Chlorophyll Content ◽  
Salinity Stress ◽  
Stress Condition ◽  
Amaranthus Tricolor ◽  
Total Chlorophyll Content ◽  
Salinity Levels ◽  
Microbial Strains ◽  
Number Of Leaves ◽  
Coastal Land

Amaranthus tricolor L. is a widely consumed and cultivated vegetable in Indonesia. Meanwhile, one of the agriculturally usable areas in the country is coastal land. However, the salinity in this land needs to be considered for proper plant growth, therefore, biofertilizer solutions are applied to enhance the growth of plants under salinity stress. This fertilizer is made from livestock urine and microbial strains. In this study, the biofertilizer was applied at a dose of 0, 10, 20, and 30 liters/ha while the stress treatment was carried out with NaCl at a concentration of 0, 2,500 5,000, 7,500, and 10,000 ppm. In addition, manure was also given as a basic fertilizer. The highest growth rate observed in the form of increase in plant height and number of leaves was found in the biofertilizer treatment of 30 and 0 liters/ha. Meanwhile, the highest mean total chlorophyll content was found in plants treated with a dose of 30 liters/ha. Based on the results, it was concluded that the application of biofertilizer affects the growth rate and chlorophyll content of spinach, but only at a certain concentration of salinity levels.

scholarly journals Effects of salinity stress on growth and photosynthetic activity of common basil plants (Ocimum basilicum L.)

2021 ◽  
Vol 22 (3) ◽  
pp. 546-556
Author(s):  
Dorota Jadczak ◽  
Kamila Bojko ◽  
Malgozhata Berova ◽  
Miroslava Kaymakanova
Keyword(s):  
Salinity Stress ◽  
Photosynthetic Activity ◽  
Ocimum Basilicum

scholarly journals Genetic divergence study in salinity stress tolerant maize (Zea mays L.)

2015 ◽  
Vol 39 (4) ◽  
pp. 621-630 ◽  
Author(s):  
A Biswas ◽  
U Sarker ◽  
BR Banik ◽  
MM Rohman ◽  
MA Khaleque Mian
Keyword(s):  
Salinity Stress ◽  
Stress Condition ◽  
Zea Mays L ◽  
Principal Component ◽  
Inbred Lines ◽  
Spad Value ◽  
Significant Difference ◽  
Cluster Distance ◽  
Maize Inbreds ◽  
100 Seed Weight

The study was conducted to investigate the genetic diversity of some maize inbreds under salinity stress condition using Mahalanobis’s statistic (D2) and principal component analysis. Analysis of variance showed significant difference for all the characters. Results of multivariate analysis revealed that seventeen inbred lines formed five clusters at 12 dS level of salinity. The highest intra-cluster distance was recorded in cluster IV containing three genotypes and the lowest was in cluster V having one genotype. The inter cluster D2 values revealed maximum distance among the clusters. The highest inter cluster distance was observed between clusters IV & III and lowest was between V & I. Cluster IV had the highest cluster means for cob height, tassel length, cob length, SPAD value, number of seeds/cob, 100 seed weight, cob diameter and grain yield per plant. Considering cluster distance, inter-genotypic distance, cluster mean and other agronomic performances the genotypes CZ29, CZ33 and P43 from cluster IV and E135, E158, E169, P29 and P45 from cluster III may be considered as better parents for future hybridization programs to obtain desirable segregates in respect of different yield and yield contributing characters under salinity stress. DOI: http://dx.doi.org/10.3329/bjar.v39i4.22540 Bangladesh J. Agril. Res. 39(4): 621-630, December 2014

scholarly journals Antioxidant responses of peanut (Arachis hypogaea L.) seedlings to prolonged salt-induced stress

2015 ◽  
Vol 67 (4) ◽  
pp. 1303-1312 ◽  
Author(s):  
Musa Kavas ◽  
Oya Akça ◽  
Ufuk Akçay ◽  
Begüm Peksel ◽  
Seçkin Eroğlu ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Growth Parameters ◽  
Ion Leakage ◽  
Stress Growth ◽  
Salt Treatment ◽  
Antioxidant Responses ◽  
Stress Protection ◽  
Arachis Hypogaea L ◽  
Leaf Tissues

In this study, the effects of long-term NaCl treatment were investigated in two cultivars of peanut designated as drought-resistant and drought-sensitive. Growth parameters, changes in the concentrations of MDA, H2O2 and proline, and the activities of antioxidant enzymes were determined under salinity stress. Growth parameters indicated the superiority of cv. Florispan to cv. Gazipa?a under milder salinity stress treatment. However, comparative analysis of the two cultivars showed that MDA, H2O2, ion leakage levels and photosystem II activities were not significantly different, except for the proline activity, which increased only in Florispan leaf tissues under 100 mM salt treatment. Among the processes that govern the tolerance in peanut tissues, proline level and the activity of glutathione reductase (GR) appeared to be only components that play an important part in salt stress protection.

scholarly journals Combined Boron Toxicity and Salinity Stress—An Insight into Its Interaction in Plants

Plants ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 364 ◽  
Author(s):  
Anamika Pandey ◽  
Mohd Kamran Khan ◽  
Erdogan Esref Hakki ◽  
Sait Gezgin ◽  
Mehmet Hamurcu
Keyword(s):  
Plant Growth ◽  
Salinity Stress ◽  
Stress Condition ◽  
High Salinity ◽  
Stress Conditions ◽  
Boron Toxicity ◽  
Combined Stress ◽  
Positive Interaction ◽  
Mobility Of Ions ◽  
Damaging Effects

The continuously changing environment has intensified the occurrence of abiotic stress conditions. Individually, boron (B) toxicity and salinity stress are well recognized as severe stress conditions for plants. However, their coexistence in arid and semi-arid agricultural regions has shown ambiguous effects on plant growth and development. Few studies have reported that combined boron toxicity and high salinity stress have more damaging effects on plant growth than individual B and salt stress, while other studies have highlighted less damaging effects of the combined stress. Hence, it is interesting to understand the positive interaction of this combined stress so that it can be effectively employed for the improvement of crops that generally show the negative effects of this combined stress. In this review, we discussed the possible processes that occur in plants in response to this combined stress condition. We highly suggest that the combined B and salinity stress condition should be considered as a novel stress condition by researchers; hence, we recommend the name “BorSal” for this combined boron toxicity and high salinity state in the soil. Membrane-bound activities, mobility of ions, water transport, pH changes, transpiration, photosynthesis, antioxidant activities, and different molecular transporters are involved in the effects of BorSal interaction in plants. The discussed mechanisms indicate that the BorSal stress state should be studied in light of the involved physiological and molecular processes that occur after B and salt interaction in plants.

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