Isolation of salt tolerant bacteria and their usage in salt-affected soils

2012 ◽  
Vol 161 ◽  
pp. 15
Author(s):  
Furkan Orhan ◽  
Medine Gulluce ◽  
Derya Yanmis ◽  
Ozlem Baris ◽  
Mehmet Karadayi
Keyword(s):  
Salt Tolerant ◽  
Salt Affected Soils

scholarly journals Repeated evolution of salt-tolerance in grasses

2013 ◽  
Vol 9 (2) ◽  
pp. 20130029 ◽  
Author(s):  
T. H. Bennett ◽  
T. J. Flowers ◽  
L. Bromham
Keyword(s):  
Salt Tolerance ◽  
Agricultural Land ◽  
Grass Species ◽  
Salt Tolerant ◽  
Crop Species ◽  
Crop Varieties ◽  
Tolerant Species ◽  
Wide Range ◽  
Repeated Evolution ◽  
Salt Affected Soils

The amount of salt-affected agricultural land is increasing globally, so new crop varieties are needed that can grow in salt-affected soils. Despite concerted effort to develop salt-tolerant cereal crops, few commercially viable salt-tolerant crops have been released. This is puzzling, given the number of naturally salt-tolerant grass species. To better understand why salt-tolerance occurs naturally but is difficult to breed into crop species, we take a novel, biodiversity-based approach to its study, examining the evolutionary lability of salt-tolerance across the grass family. We analyse the phylogenetic distribution of naturally salt-tolerant species on a phylogeny of 2684 grasses, and find that salt-tolerance has evolved over 70 times, in a wide range of grass lineages. These results are confirmed by repeating the analysis at genus level on a phylogeny of over 800 grass genera. While salt-tolerance evolves surprisingly often, we find that its evolution does not often give rise to a large clade of salt-tolerant species. These results suggest that salt-tolerance is an evolutionarily labile trait in grasses.

Performance of Salt Tolerant Wheat Varieties in Salt Affected Soils

2018 ◽  
Vol 6 (2) ◽  
pp. 184
Author(s):  
D S Jakhar ◽  
Nirmal Kumar ◽  
Sunil Kumar
Keyword(s):  
Salt Tolerant ◽  
Wheat Varieties ◽  
Salt Affected Soils

scholarly journals SCREENING OF SALT TOLERANT RHIZOBIA FROM GROUNDNUT IN CUDDALORE DISTRICT OF TAMIL NADU, INDIA

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
N. Pandeeswari ◽  
K. Sivakumar
Keyword(s):  
Salt Tolerance ◽  
Land Surface ◽  
Tamil Nadu ◽  
Crop Production ◽  
Climatic Conditions ◽  
Irrigated Agriculture ◽  
Salt Tolerant ◽  
Salinity Response ◽  
The World ◽  
Salt Affected Soils

Salinity seriously constrains crop yield in irrigated agriculture throughout the world. Also, salinity is a serious threat to agriculture in arid and semi arid regions. Nearly 10 % of the world’s land surface can be classified as endangered by salinity. Salinity in the soil and irrigation water is an environmental problem and a major constraint for crop production. Currently, 20 % of the world’s cultivated land is affected by salinity, which results in the loss of 50 % of agricultural yield. At present, there are nearly 954 million hectares of saline soils on the earth’s surface. All these salt affected soils are distributed throughout the world. The salinity response of legumes in general varies greatly depending on factors like climatic conditions, soil properties, salt tolerance and the stages of crop growth. Successful cultivation of legumes can be achieved by the selection and/or development of a salt-tolerant legume Rhizobium combination although high salinities are known to affect rhizobial activities. The aim of present study is the effect of strains of salt tolerant Rhizobia on IAA, EPS, nodule ARA activity, Nitrogen content, leghemoglobin content, siderophore production, IAR and salt concentration of Groundnut on coastal area of Cuddalore District of Tamil Nadu. The GNR CD-4 is the effect salt tolerance strain compared to other strains.

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

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