scholarly journals Morpho-Genetic Screening of the Promising Rice Genotypes under Salinity Stress

2015 ◽  
Vol 7 (5) ◽  
Author(s):  
Reza M. Emon ◽  
Glenn B. Gregorio ◽  
Adedze Y. M. Nevame ◽  
Mirza M. Islam ◽  
M. R. Islam ◽  
...  
2011 ◽  
Vol 4 (1) ◽  
pp. 25-41 ◽  
Author(s):  
Olivier Cotsaftis ◽  
Darren Plett ◽  
Alexander A.T. Johnson ◽  
Harkamal Walia ◽  
Clyde Wilson ◽  
...  

2013 ◽  
Vol 13 (3) ◽  
pp. 351-365 ◽  
Author(s):  
Neelam Soda ◽  
Hemant R. Kushwaha ◽  
Praveen Soni ◽  
Sneh L. Singla-Pareek ◽  
Ashwani Pareek

2017 ◽  
Vol 23 (4) ◽  
pp. 837-850 ◽  
Author(s):  
Sahana Basu ◽  
Ranjan Kumar Giri ◽  
Ibtesham Benazir ◽  
Santosh Kumar ◽  
Ravi Rajwanshi ◽  
...  

Biologia ◽  
2019 ◽  
Vol 75 (5) ◽  
pp. 785-793
Author(s):  
Parinaz Jalali ◽  
Saeid Navabpour ◽  
Ahad Yamchi ◽  
Hassan Soltanloo ◽  
Saeed Bagherikia

2005 ◽  
Vol 139 (2) ◽  
pp. 822-835 ◽  
Author(s):  
Harkamal Walia ◽  
Clyde Wilson ◽  
Pascal Condamine ◽  
Xuan Liu ◽  
Abdelbagi M. Ismail ◽  
...  

1970 ◽  
Vol 36 (2) ◽  
pp. 181-184
Author(s):  
ANM Alamgir ◽  
Mohammad Musa ◽  
Mohammad Yousuf Ali

Biomass production under salt stress decreased with the sequence: IRATOM-24 > BR 9 > Nonabokra > Pokkali. In Pokkali root-shoot dry wt. was less affected and it maintained high root to shoot ratio (R/S) and their tolerance indices (TI). Salinity stress increased Na+, Cl- and decreased K+ and Ca+ contents and consequently their ratios in both root and shoot of the seedlings. Under stress proline level was increased in both root and shoot of the seedlings in all genotypes, the highest was observed in the root of Pokkali and in the shoot of IRATOM-24. Excepting BR 9 salinity increased protein content in other genotypes and among them Nonabokra maintained the highest protein level. Salinity inhibited the root ATPase activity in all except Pokkali. Efficiency of the maintenance of relatively high dry matter, R/S ratio, essential ions, K+ - Ca2+/ Na+ ion ratios, proline and protein contents in the seedlings including the root ATPase activity may be imp ortant aspects of NaCl stress tolerance mechanism as found in one or another rice genotype of the present work.   Key words: Salinity, Stress tolerance, Proline, Protein, ATPase activity DOI = 10.3329/bjb.v36i2.1510 Bangladesh J. Bot. 36(2): 181-184, 2007 (December)


2018 ◽  
Vol 10 (27) ◽  
pp. 20-30
Author(s):  
Fateme Mohamadi ◽  
Nadali Bagheri ◽  
Ghafar Kiani ◽  
Nadali Babaeian Jelodar ◽  
◽  
...  

Author(s):  
Rinny Swain ◽  
Surabhika Panda ◽  
Gyana Ranjan Rout

Silicon (Si) is known to improve salt tolerance in rice. However, the correlation of silicon with different physiological and biochemical indices of salt tolerance is not properly understood. Two rice genotypes with different silicon accumulation ability were evaluated along with two standard checks in response to 10 dS/m salinity stress (NaCl) and external Si source (1mM) during their seedling stage. All evaluated genotypes showed an evident decrease in biomass and chlorophyll content under salinity stress, while reporting an enhances in Si accumulation, Na+/K+ ratio, proline, electrolyte leakage, lipid peroxidation, hydrogen peroxide, and antioxidant activities. The external Si supplementation significantly improved rice tolerance to salinity through increased Si content, low Na+/K+ ratio, better osmolyte production, reduced membrane permeability, and improved antioxidant enzyme activities. Multivariate factor analysis with principal component factor statistically correlates and visualizes silicon accumulation with salt tolerance indices. The Hierarchical clustering in rice obtained based on the study of salt tolerance indices, distinguishes genotypes with different treatments into three clusters. In conclusion, the clustering grouped salt-tolerant Var.Lunishree and salt stress high silicon accumulating Var.Swarna together validates silicon mitigating effect on salinity in rice.


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