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Dec 10, 2004 The screening is based on the ... high salinity Plant breeding is the art and ... to breed improved types. Only those breeding and selection methods ... Inquire Now breeding and screening plant types for salinity Mobile ... breeding and screening plant types for salinity.
Breeding for salt tolerance Breeding amp Plant Genetics 29102013 A common approach to breeding for salt tolerance starts with assembling and screening germplasm for salinity tolerance. The selected genotypes are used as parents to transfer the trait to desired cultivars, followed by selecting desirable recombinants from the segregating population.
Soil and water salinity affect growth and cause physiological disorders in plants. Recently, the high level of salt accumulated in the soil has become a problem in the Ribera del Xuquer area in Valencia. Diospyros lotus, the most common persimmon rootstock used in this area, is sensitive to salinity. Numerous studies have demonstrated that exclusion of Cl and Na is under genetic control.
Jul 11, 2012 Marker-assisted selection MAS is the process of using morphological, biochemical, or DNA markers as indirect selection criteria for selecting agriculturally important traits in crop breeding. This process is used to improve the effectiveness or efficiency of selection for the traits of interest in breeding programs.
The variables studied were chloride and sodium uptake, growth and leaf gas exchange parameters. Three-month-old plants were grown in a greenhouse and irrigated for 45 days with nutrient solutions differing in sodium chloride NaCl content 0, 30 and 50 mM. Plant water status was disrupted by salinity-induced osmotic stress.
Plant breeding is the science of adjusting the traits of plants so as to supply desired characteristics. The goals of plant breeding are to supply crop varieties that boost unique and superior traits for a spread of agricultural applications. Plant breeding also called crop breeding is often accomplished through many various techniques starting ...
Marker-assisted selection MAS is the process of using morphological, biochemical, or DNA markers as indirect selection criteria for selecting agriculturally important traits in crop breeding. This process is used to improve the effectiveness or efficiency of selection for the traits of interest in
Uncoupling of sodium and chloride to assist breeding for salinity tolerance in crops. Genc Y12, Oldach K12, Taylor J2, Lyons GH12. Author information 1South Australian Research and Development Institute, Plant Genomics Centre, Waite Campus, Glen Osmond, SA, 5064, Australia.
Plant Breeding Definition. Plant breeding is a method of altering the genetic pattern of plants to increase their value and utility for human welfare. It is a purposeful manipulation of plants to create desired plant types that are better suited for cultivation, give better yield and are disease resistant.
Jan 01, 2019 Selection and screening at low salinity is preferable Richards, 1992 because most of the grain production is from the nonsaline areas. Breeding for salinity tolerance at moderate salinity is the best strategy Isla et al., 2003 however breeding and selection at high salinity could lead to high yield advantage. In addition, plants ...
Breeding for salinity tolerance in rice. 1985. Akbar, M. Hillerislambers, D. Khush, G.S. Soil salinity was one of the major rice production constraints in South and Southeast Asia. The most relevant strategy was the genetic manipulation of plants to breed salt-tolerant varieties.
In vitro Tissue Culture, a Tool for the Study and Breeding of Plants Subjected to Abiotic Stress Conditions 95 Several researchers have compared the response of other Cl-and SO42-salts including KCl, Na2SO4, and MgSO4 during in vitro screening. This use of multiple salts as a selection pressure parallels the salinity under field conditions and may be a better choice 11.
Phenotypic resistance of salinity is expressed as the ability to survive and grow in a salinised medium. Some subjective measure of overall performance has normally been used in plant breeding programmes aimed at increasing salinity resistance, not only to evaluate progeny, but to select parents. Salinity resistance has, at least implicitly, been treated as a single trait.
Jan 12, 2019 In pea, variation for traits such as plant height, plant growth rate, roots and shoot biomass was revealed following screening of 780 pea accessions under salinity stress Leonforte et al. 2013a, b.Similarly, another study involving 30 pea genotypes reported variation for germination percentage, root and shoot weight and inorganic osmolytes Shahid et al. 2012.
BREEDING FOR HIGHER SALT TOLERANCE 231 . modify the effect of salinity, as has been discussed . elsewhere 1112,24. Second, genotype-environment interaction means that the best geno- type at one salt concentration may not be the best at another. For
Abstract The wheat gene pool has a tremendous amount of genetic diversity for salinity tolerance. During the last few decades, several wheat genetic stocks have been developed showing all three types of tolerance mechanisms, i.e., tissue tolerance, osmotic tolerance and ion Na exclusion. However, delivery of improved crop varieties adapted to saline conditions has been lagging behind due to ...
Oct 17, 2012 3. In vitro selection of plants tolerant to abiotic stress. Many studies have reported that the in vitro culture alone or combined with mutagenesis, induced with physicochemical or biological agents, can be exploited to increase genetic variability and mutants, as a potential source of new commercial cultivars . In vitro culture environments can be mutagenic and plants regenerated from organ ...
A screening method for salinity tolerance could be readily acceptable when based on a simple criterion for selection, it provides rapid screening of large number of materials and reproducible results. In Plant Breeding, Genetics and Biochemistry 2
Plant Breeding for Salt Resistance Salt tolerance refers to the ability of plants to prevent reduce or overcome the injurious effect of soluble salts present in their root zone. The problem of salinity is of global significance because saline and alkaline soils are found in almost all countries of the world. In India, more than
Jun 23, 2017 Plant Breeding for Salt Resistance Salt tolerance refers to the ability of plants to prevent reduce or overcome the injurious effect of soluble salts present in their root zone. The problem of salinity is of global significance because saline and alkaline soils are found in
ity to salt beyond the threshold. The plant breeding approach to pro- ducing salt-tolerant crops has two limi- tations - limited sources of genes for salinity tolerance and lack of rapid, precise evaluation methods. Genetic variability among US. cultivars may be more limited than among world collec-
In vitro screening methods can be applied for traits plant species and until recently, has been one of the only that can be mimicked in culture such as drought 102, 103, available techniques for identifying de novo single nucleo- salinity 45, 5759, 64, 104, 105, toxic elements 47, 106 tide polymorphisms SNPs or point mutations in ...
0000. Plant breeding, in its simplest definition, is crossing two plants to produce offspring that, ideally, share the best characteristics of the two parent plants. Throughout the history of civilization, plant breeding has helped farmers solve complex challenges while also appeasing the
Feb 17, 2016 The use of DNA markers in plant breeding is called marker-assisted selection MAS and is a component of the new discipline of molecular breeding . Genomic research in recent years led to the development of screening tools via marker-assisted selection, which enables much more efficient selection of superior recombinants improved for ...
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