scholarly journals Screening, Inheritance and Linkage Marker Analyses of Salt Tolerance in Mutated Scented Japonica Rice (Oryza sativaL.)

2011 ◽  
Vol 14 (3) ◽  
pp. 260-269 ◽  
Author(s):  
Ching-Chu Yen ◽  
Jenq-Horng Lin
Keyword(s):  
Salt Tolerance ◽  
Japonica Rice ◽  
Linkage Marker

scholarly journals Large-scale integrated evaluation of salt tolerance in japonica rice at the germination stage

2020 ◽  
Author(s):  
Xiu Jing ◽  
Ping Mi ◽  
Xianzhi Xie ◽  
Baoshan Wang
Keyword(s):  
Mathematical Model ◽  
Salt Stress ◽  
Salt Tolerance ◽  
Large Scale ◽  
Crop Yields ◽  
Japonica Rice ◽  
Rice Cultivars ◽  
Salt Tolerant ◽  
Fresh Weight ◽  
Germination Stage

Abstract Background: Salt stress, one of the most important abiotic stresses, severely reduces crop yields. Identifying salt-tolerant rice germplasm resources at the germination stage, developing salt tolerance indicators, and cultivating salt-tolerant rice cultivars are crucial for improving rice production in saline soil.Results: We measured the germination parameters of 140 japonica rice cultivars on the 7 day after sowing (DAS) in 0 and 150 mmol L−1 NaCl. To accurately assess salt tolerance and identify reliable indicators of salt tolerance, we measured the shoot length (SL), root length (RL), root fresh weight (RFW), shoot fresh weight (SFW), total fresh weight (TFW) and salt tolerance (STI) index after 7 days of salt-stress treatment. The 140 rice cultivars were divided into four categories based on the mean MFVs: highly salt tolerant (HST: 19 cultivars), salt tolerant (ST: 74 cultivars), weakly salt tolerant (WST: 43 cultivars), and salt sensitive (SS: 4 cultivars). Based on the physiological indicators, we established a mathematical model to accurately evaluate salt tolerance in japonica rice cultivars. STI of TFW under 150 mmol L−1 NaCl treatment showed the highest correlation with salt tolerance during the germination stage.Conclusions: We determined the optimum NaCl concentration (150 mmol L−1) for evaluating salt tolerance in japonica rice at the germination stage. We identified 19 HST, 74 ST, 43 WST, and 4 SS japonica rice cultivars during the germination stage and proposed a mathematical model to evaluate salt tolerance. STI of TFW is a reliable, accurate indicator for evaluating salt tolerance in japonica rice. These findings should greatly facilitate the evaluation of japonica rice cultivars during seed germination and the breeding of salt-tolerant rice cultivars.

The Back-cross Effect on Salt Tolerance in Japonica Rice

2014 ◽  
Vol 26 (4) ◽  
pp. 457-461
Author(s):  
Man-Kee Baek ◽  
◽  
Huyn-Su Park ◽  
Jeong-Ju Kim ◽  
Jeong-Kwon Nam ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Japonica Rice ◽  
Cross Effect ◽  
Back Cross

Transformation of japonica rice withRHL gene and salt tolerance of the transgenic rice plant

2002 ◽  
Vol 47 (12) ◽  
pp. 998-1002 ◽  
Author(s):  
Rongtian Li ◽  
Zhongming Zhang ◽  
Qifa Zhang
Keyword(s):  
Salt Tolerance ◽  
Transgenic Rice ◽  
Rice Plant ◽  
Japonica Rice ◽  
Transgenic Rice Plant

Application of SSR Technique for the Identification of Markers Linked to Salinity Tolerance in Rice

2013 ◽  
Vol 19 (2) ◽  
pp. 57-65
Author(s):  
MH Kabir ◽  
MM Islam ◽  
SN Begum ◽  
AC Manidas
Keyword(s):  
Salt Tolerance ◽  
Ssr Markers ◽  
Salinity Tolerance ◽  
Seedling Stage ◽  
Phenotypic Screening ◽  
Salt Tolerant ◽  
Marker Assisted Breeding ◽  
Hydroponic System ◽  
Rice Landrace ◽  
Salt Susceptible

A cross was made between high yielding salt susceptible BINA variety (Binadhan-5) with salt tolerant rice landrace (Harkuch) to identify salt tolerant rice lines. Thirty six F3 rice lines of Binadhan-5 x Harkuch were tested for salinity tolerance at the seedling stage in hydroponic system using nutrient solution. In F3 population, six lines were found as salt tolerant and 10 lines were moderately tolerant based on phenotypic screening at the seedling stage. Twelve SSR markers were used for parental survey and among them three polymorphic SSR markers viz., OSR34, RM443 and RM169 were selected to evaluate 26 F3 rice lines for salt tolerance. With respect to marker OSR34, 15 lines were identified as salt tolerant, 9 lines were susceptible and 2 lines were heterozygous. While RM443 identified 3 tolerant, 14 susceptible and 9 heterozygous rice lines. Eight tolerant, 11 susceptible and 7 heterozygous lines were identified with the marker RM169. Thus the tested markers could be efficiently used for tagging salt tolerant genes in marker-assisted breeding programme.DOI: http://dx.doi.org/10.3329/pa.v19i2.16929 Progress. Agric. 19(2): 57 - 65, 2008

INDUCING SALT TOLERANCE IN FRENCH MARIGOLD (TAGETES PATULA) THROUGH SEED PRIMING

2017 ◽  
Vol 16 (3) ◽  
pp. 109-118 ◽  
Author(s):  
Irfan Afzal ◽  
Abdul Rahim ◽  
Muhammad Qasim ◽  
Adnan Younis ◽  
Aamir Nawaz ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Seed Priming ◽  
Tagetes Patula
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