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Plant Breeding for Salt Resistance - agriinfo

23.06.2017  Screening Techniques: Various methods are used for screening segregating material for salt resistance. The commonly used methods are: 1) Lysimeter micro plots, 2) Sand culture, and 3) Solution culture tanks. The Lysimeter micro plots of 6 m X 3 m X 1 I size are used at CSSRI, Karnal. Several levels of salinity are used and replicated experiments are conducted to screen for salt

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(PDF) Screening methods for salinity tolerance: A

The objective was to produce screening techniques for selecting salt-tolerant progeny in breeding programs in which genes for salinity toleran ce have been introduced by either conventional...

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Salinity tolerance in plants: Breeding and genetic engineering

high yielding and stress tolerant crops. Plant breeders have used genetic variation in crops, at intraspecific, interspecific and intergeneric levels to produce salt tolerant lines. Lots of salt tolerant crop cultivars/lines have been produced by breeding; for example, salt tolerant CSR10, CSR13, CSR27

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Breeding strategies for structuring salinity

01.01.2019  The optimum level of salinity to screen germplasm is very important because most parts of saline soils have low or moderate salinity and only small parts are under high salinity stress. 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

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Improving salinity tolerance of plants through ...

Plant breeders have also been successful during the last century in producing a few salt-tolerant cultivars/lines of some potential crops through conventional breeding, but this again has utilized modest resources. However, this approach seems now inefficient due to a number of reasons, and alternatively, genetic engineering for improving crop salt tolerance is being actively followed these days by the plant

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Breeding for Salinity Tolerance SpringerLink

05.06.2012  Salt-tolerant crop species are barley, cotton, oats, rye, triticale, sugar beet, guar, and canola or rapseed.

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Screeningrice for salinity tolerance

Division (PBGB), IRRI, two screening techniques were developed for use at seedling stage, and vegetative and reproductive stages. Screening is done under controlled condition to minimize environmental effects. SCREENING AT SEEDLING STAGE Rice is very sensitive to salinity at seedling stage. Its height, root length, emergence of

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Screening plants for salt tolerance by measuring

Many potential criteria or traits have been proposed for screening. Examples include ranking of plants according to growth rate or yield (Greenway 1962), plant survival at high salinity , germination rate (von Well Fossey 1998), leaf or root elongation rate (Cramer Quarrie 2002), leaf injury and reduction of CO 2 assimilation (James et al. 2002), loss of chlorophyll and damage to the photosynthetic

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PROTOCOL: Salt tolerance screening in rice using hydroponics

The aim is to screen rice seedlings and classify their tolerance to salinity. Extensive tests have been carried out at the IAEA’s Plant Breeding and Genetics Laboratory (PBGL) using rice genotypes with known susceptibility/tolerance to saline field conditions. Correlations have

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Breeding Turf-type Annual Ryegrass for Salinity Tolerance

salinity will be carried out by two methods. First, a salt tank greenhouse screening method will be conducted to select salt tol-erant plants at Overton. Secondly, a screening procedure will be utilized under high-salt field conditions at Pecos, Texas. Selection of

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(PDF) Screening Rice for Salinity Tolerance

one of the most suitable crops for saline soils although it is usually. considered moderately sensitive to salinity (Akbar et al 1972, Korkor and Abdel-Aal. 1974, Maas and Hoffman 1977, Mori et a1 ...

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Image-based phenotyping for non-destructive

Soil salinity is an abiotic stress wide spread in rice producing areas, limiting both plant growth and yield. The development of salt-tolerant rice requires efficient and high-throughput screening techniques to identify promising lines for salt affected areas. Advances made in image-based phenotyping techniques provide an opportunity to use non-destructive imaging to screen for salinity tolerance traits in a wide

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Recent Advances in Breeding For Drought and

Irrigation and soil reclamation are not economically viable options for soybean production under drought and salinity. Hence, genetic improvement for drought and salt tolerance are cost effective. Conventional breeding has made a significant contribution to soybean improvement in the last 50 years.

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Plant Breeding Definition, Methods, Steps and

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. Plant breeding is done for the following objectives – Increase the crop yield; Improve the quality of the crop; Increase tolerance to environmental conditions like salinity. extreme temperatures and drought

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Increasing salt tolerance in the tomato Journal

Since salinity is variable in time and space, experimental design must allow the study of genotype×environment interaction. Genetic transformation could become a powerful tool in plant breeding, but the growing knowledge from plant physiology must be integrated with molecular breeding techniques. It has been shown that the expression of several transgenes promotes a higher level of salt tolerance

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Carbon isotope discrimination: potential for

The quantification of salinity resistance poses serious problems in the field because of climatic factors and field heterogeneity. In the present study. rice germplasm obtained from the International Rice Research Institute (IRRI). Philippines, was screened in a naturally lit (11 h daylight) Limestonehouse‐based hydroponics unit at two salinity levels (4 and 6 dS/m), Phenotypic performance based on survival of

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Breeding for Resistance to Abiotic Stresses -

Screening for stress resistance. Drought stress. Breeding drought resistance. Approaches for breeding drought resistance. Cold stress. Mechanisms of resistance to low temperature. Selection for low‐temperature tolerance. Breeding for tolerance to low‐temperature stress. Salinity stress. Heat stress. Mineral toxicity stress. Mineral deficiency stress. Oxidative stress

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Rice Breeding for High Grain Yield under

Based on the choice of parents, screening for other traits like disease tolerance (BLB, Blast or others), insect tolerance (brown plant hopper, gall midge, etc.), or tolerance to other abiotic stresses (temperature, submergence, salinity, etc.) can be conducted at different generations during the development of fixed lines. While the basic procedure and principle remain the same, the use of

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breeding and screening plant types for salinity

Screening methods for salinity tolerance: a case study Screening methods for salinity tolerance: types with salt tolerance Plant Breed. Abstr. 61, 873–881. » Learn More. Molecular Breeding to Improve Salt Tolerance of Rice genome technologies and appliions of genomic tools in plant breeding. used to screen individual BC 1 F 1 plants ...

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Benefits and limitations in breeding salt-tolerant crops

screening procedures can be developed. Ultimately, breeders may be able to develop simple evaluations based on the physiological mechanisms for salt toler- ance. Some tolerant plants accumulate ions such as sodium in leaves and other tissues; others have ways of preventing ions from entering the plant. These two mechanisms . niay . have

More

Breeding Turf-type Annual Ryegrass for Salinity Tolerance

Breeding Turf-type Annual Ryegrass for Salinity Tolerance Start Date:2008 Project Duration:three years Total Funding: $88,276 When plants were in the 2-3 leaf stage, entire flats were immersed in water containing increasing concentration of salt. L. R. Nelson Texas AgriLife Research Objectives: 1. To identify improved salt-tolerant genotypes ...

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A Salt Tolerance Evaluation Method for Sunflower ...

Salinity is a major abiotic stress that affects plant growth and development and leads to crop yield loss. Many crop species are more sensitive to salinity stress at the seed germination stage than at other developmental stages. Some studies have shown that sunflower is tolerant to salinity to a certain degree. However, no systematic screening data for sunflower germplasms are available for ...

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The Use of Proline in Screening for Tolerance to Drought ...

agronomy Article The Use of Proline in Screening for Tolerance to Drought and Salinity in Common Bean (Phaseolus vulgaris L.) Genotypes Sugenith Arteaga 1, Lourdes Yabor 1,2, María José Díez 3, Jaime Prohens 3, Monica Boscaiu 4,* and Oscar Vicente 3 1 Institute for Plant Molecular and Cell Biology (IBMCP, UPV-CSIC), Universitat Politècnica de València, ...

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Image-based phenotyping for non-destructive

Soil salinity is an abiotic stress wide spread in rice producing areas, limiting both plant growth and yield. The development of salt-tolerant rice requires efficient and high-throughput screening techniques to identify promising lines for salt affected areas. Advances made in image-based phenotyping techniques provide an opportunity to use non-destructive imaging to screen for salinity ...

More

BREEDING FOR ABIOTIC STRESS RESISTANCE (Drought, Cold ...

Salinity and alkalinity : Screening for salinity and alkalinity can be done more successfully by in vitro techniques. Raising the seedling in test tube containing different concentration of salt is done in case of rice. This is followed in case of pesticide and herbicide tolerance also. 4. Wind tolerance Wind with high velocity may cause evaporation of soil moisture and tip drying in many ...

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Agronomic and molecular characterization of wild

In order to test tolerance to salinity, a screening was performed on a subset of sixty- seven genotypes, using high concentrations of sodium chloride in water used for irrigation. To standardize the age of the plants for the study, each genotype was clonally propagated, and the plants were grown in 8.9 cm square pots (401 mL capacity) in a greenhouse in Weslaco, Texas, USA. To determine which ...

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Increasing salt tolerance in the tomato Journal

Introduction. Salinity affects almost every aspect of the physiology and biochemistry of plants and significantly reduces yield. As saline soils and saline waters are common around the world, great effort has been devoted to understanding physiological aspects of tolerance to salinity in plants, as a basis for plant breeders to develop salinity-tolerant genotypes.

More

Rice Breeding for High Grain Yield under

The plant types suitable for flooded lowland conditions are high-tillering, medium-to- long-duration dwarf plant types with drought tolerance. This kind of plant type ensures high yield under normal conditions with minimum threat to lodging. The long maturity duration also allows the plant to attain high biomass and high tillering which in turn leads to an increase in yield under normal ...

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breeding and screening plant types for salinity

Screening methods for salinity tolerance: a case study Screening methods for salinity tolerance: types with salt tolerance Plant Breed. Abstr. 61, 873–881. » Learn More. Molecular Breeding to Improve Salt Tolerance of Rice genome technologies and appliions of genomic tools in plant breeding. used to screen individual BC 1 F 1 plants ...

More

Benefits and limitations in breeding salt-tolerant crops

screening procedures can be developed. Ultimately, breeders may be able to develop simple evaluations based on the physiological mechanisms for salt toler- ance. Some tolerant plants accumulate ions such as sodium in leaves and other tissues; others have ways of preventing ions from entering the plant. These two mechanisms . niay . have

More

Wheat cultivars can be screened for NaCl salinity ...

An efficient screening procedure is essential for breeding for salinity-tolerant crops, but there is no consensus regarding the best approach. While some authors argue that the selection of tolerant genotypes should be undertaken under field conditions, others believe that field-based trials for salinity tolerance is problematic due to confounding environmental factors.

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Breeding Turf-type Annual Ryegrass for Salinity Tolerance

Breeding Turf-type Annual Ryegrass for Salinity Tolerance Start Date:2008 Project Duration:three years Total Funding: $88,276 When plants were in the 2-3 leaf stage, entire flats were immersed in water containing increasing concentration of salt. L. R. Nelson Texas AgriLife Research Objectives: 1. To identify improved salt-tolerant genotypes ...

More

The Use of Proline in Screening for Tolerance to Drought ...

agronomy Article The Use of Proline in Screening for Tolerance to Drought and Salinity in Common Bean (Phaseolus vulgaris L.) Genotypes Sugenith Arteaga 1, Lourdes Yabor 1,2, María José Díez 3, Jaime Prohens 3, Monica Boscaiu 4,* and Oscar Vicente 3 1 Institute for Plant Molecular and Cell Biology (IBMCP, UPV-CSIC), Universitat Politècnica de València, ...

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A study of salinity tolerance in field pea Antonio Leonforte

provides a guide to screening of populations for useful genetic variation or marker-tagged QTLs. Preliminary investigation has identified QTLs for seedling tolerance to salinity stress for implementation of MAS for the purposes of parent building and routine screening. vi Acknowledgements I sincerely thank my supervisors Dr Phil Salisbury, Dr Marc Nicolas, Dr Kevin Smith and Dr John Forster ...

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Increasing salt tolerance in the tomato Journal

Introduction. Salinity affects almost every aspect of the physiology and biochemistry of plants and significantly reduces yield. As saline soils and saline waters are common around the world, great effort has been devoted to understanding physiological aspects of tolerance to salinity in plants, as a basis for plant breeders to develop salinity-tolerant genotypes.

More

Agronomic and molecular characterization of wild

In order to test tolerance to salinity, a screening was performed on a subset of sixty- seven genotypes, using high concentrations of sodium chloride in water used for irrigation. To standardize the age of the plants for the study, each genotype was clonally propagated, and the plants were grown in 8.9 cm square pots (401 mL capacity) in a greenhouse in Weslaco, Texas, USA. To determine which ...

More

Phenotyping protocols for abiotic stress manual ...

In order to screen germplasm to identify stress-tolerant donors for breeding, and to further select breeding lines showing improved stress tolerance, robust phenotyping methods are necessary. This manual, provides detailed protocols for screening rice under the major stresses affecting both rainfed and irrigated rice: submergence, salinity, drought, and the soil problems – excess iron and ...

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Breeding high-yield superior quality hybrid super

Large-scale screening led to the identification of diverse germplasms containing Rf gene(s) ... While hybrid rice technology and breeding for plant type clearly led to major advances in breeding and production, the limitation to exploiting hybrid rice to its full potential has been the lack of detailed knowledge of the genes underlying yield. Now, we believe that the super rice program is set ...

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