Screening methods for salinity tolerance: a case study with tetraploid wheat

Munns, Rana; James, Richard A.

doi:10.1023/a:1024553303144

Cited by 661 publications

(489 citation statements)

References 54 publications

Supporting

Mentioning

453

Contrasting

Unclassified

Order By: Relevance

“…A positive and significant correlation was found between chlorophyll content and A sat and TDW even though measurements were made in completely mature leaves, although young ones. We believe that a stronger correlation would have been found if chlorophyll content had been measured in the oldest leaves, and this could be used as a screening criterion for plants under water stress and salinity, as proposed for barley by Rong-Hua et al [54] and for wheat by Munns and James [47].…”

Section: Water Stress Effectsmentioning

confidence: 94%

“…One of the traits of salt tolerance in crops suitable for large scale evaluation in greenhouses is ion 'exclusion' [47], which is defined as the ability to restrict the rate of entry of potentially toxic Na+ and Cl-into the shoots combined with the maintenance of K + uptake, even when Na+/K+ ratio is very high in the soil solution [48].…”

Section: Salinity Effect On Plantsmentioning

confidence: 99%

See 1 more Smart Citation

Salinity and Water Stress Effects on Biomass Production in Different Arundo donax L. Clones

et al. 2015

View full text Add to dashboard Cite

Perennial rhizomatous grasses are regarded as leading energy crops due to their environmental benefits and their suitability to regions with adverse conditions. In this paper, two different experiments were carried out in order to study the salinity (S) and water stress (WS) effects on biomass production in giant reed (Arundo donax L.). In Experiment 1, eight clones of giant reed were subjected to four S and WS treatments: (i) well-watered with nonsaline solution, (ii) water stress with non-saline solution, (iii) well-watered with saline solution and iv) water stress with saline solution. In Experiment 2, five clones of giant reed were subjected to increasing S levels in two locations: University of Catania (UNICT-Italy) (i)well-watered with non-saline solution and (ii)wellwatered with mild saline solution; and University of Barcelona (UB-Spain) (iii)well-watered with non-saline solution and (iv)well-watered with severe saline solution. Photosynthetic and physiological parameters as well as biomass production were measured in these plants. According to our data, giant reed seems to be more tolerant to S than WS. Both stresses mainly affected stomatal closure to prevent dehydration of the plant, and eventually decreasing the photosynthetic rate. The differential performance of the giant reed clones was ranked according to their tolerance to S and WS by using the Stress Susceptibility Index. 'Agrigento' was the most WS resistant clone and 'Martinensis' was the most S resistant. 'Martinensis' and 'Piccoplant' were found to be the most suitable clones for growing under both stress conditions. Moreover, 'Fondachello', 'Cefalú' and 'Licata' were the most resistant clones to increasing S levels.Keywords: Arundo donax L.; biomass; water stress; salinity stress; photosynthesis; Stress Susceptibility Index. ABBREVIATIONSA sat , light saturated net CO 2 assimilation rate (µmol m -2 s -1 ); DLP, complete dry leaves percentage (%); DM, dry matter (g); FC, field capacity; g s , stomatal conductance (mol m -2 s -1 ); gLA, green leaf area (m 2 ); GLP, complete green leaves percentage (%); H, height (cm); LAR, leaf area ratio (m 2 Kg -1 ); LWR, leaf weight ratio (Kg Kg -1 ); NL, number of leaves; NS, number of stems; PPFD, photosynthetic photon flux density; PRG, perennial rhizomatous grasses; RWC, relative water content (%); S, salinity; SA, stem area (m 2 ); SLA, specific leaf area (m 2 Kg -1 ); S/R, shoot/root ratio (g g -1 ); SSI, stress susceptibility index; TDW, total dry weight (g); WS, water stress; YLP, complete yellow leaves percentage (%).3

show abstract

Section: Water Stress Effectsmentioning

confidence: 94%

Section: Salinity Effect On Plantsmentioning

confidence: 99%

Salinity and Water Stress Effects on Biomass Production in Different Arundo donax L. Clones

et al. 2015

View full text Add to dashboard Cite

show abstract

“…), clearly negative correlations have been observed between Na + accumulation and growth (e.g. Schachtman and Munns 1992;Munns and James 2003). More recent work, however, has shown that there is considerable deviation from this simple picture.…”

Section: Sodium Toxicitymentioning

confidence: 98%

Sodium as nutrient and toxicant

et al. 2013

View full text Add to dashboard Cite

Background Sodium (Na + ) is one of the most intensely researched ions in plant biology and has attained a reputation for its toxic qualities. Following the principle of Theophrastus Bombastus von Hohenheim (Paracelsus), Na + is, however, beneficial to many species at lower levels of supply, and in some, such as certain C4 species, indeed essential. Scope Here, we review the ion's divergent roles as a nutrient and toxicant, focusing on growth responses, membrane transport, stomatal function, and paradigms of ion accumulation and sequestration. We examine connections between the nutritional and toxic roles throughout, and place special emphasis on the relationship of Na + to plant potassium (K + ) relations and homeostasis. Conclusions Our review investigates intriguing connections and disconnections between Na + nutrition and toxicity, and concludes that several leading paradigms in the field, such as on the roles of Na + influx and tissue accumulation or the cytosolic K + /Na + ratio in the development of toxicity, are currently insufficiently substantiated and require a new, critical approach.

show abstract

“…Salinity severely impedes plant growth and yield due to interference at the physiological, biochemical (Munns 2002;Munns and James 2003) and molecular level (Mansour 2000;Tester and Davenport 2003). The presence of increased salt in the soil solution leads to osmotic stress, restricting the ability of the plant to take up water and causing water deficit in plant tissues.…”

mentioning

confidence: 99%

Relationship between survival and yield related traits in Solanum pimpinellifolium under salt stress

et al. 2012

View full text Add to dashboard Cite

A subset of the Solanum pimpinellifolium collection maintained by AVRDC-The World Vegetable Center, Taiwan was evaluated to assess effects of salt stress on physiological traits and yield-related traits with the aim of identifying potential S. pimpi nellifolium accessions useful for salt tolerance breed ing in tomato. We undertook a comparative analysis of yield and plant survival traits under normal and salt stress conditions to obtain a first indication of the crucial traits associated with salt tolerance in S. pimpinellifolium. Although most traits of S. pimpinellifolium accessions showed a similar percent decrease in mean under salt stress compared with the cultivated checks, the former exhibited a wide range for all traits, suggesting great genetic diversity that can be exploited for the identification of salt tolerant genotypes. Genetic variability for yield and survival traits under salt stress was quantitative with low to moderate heritability. Results of correlation and path coefficient analysis revealed no correlation between any of the physiological traits with yield-related traits indicating that the ability to survive and yield under salt stress are two independent sets of traits in S. pimpinellifolium. Results of the path analysis along with heritability and genetic advance showed that shoot dry weight and K/Na ratio are the two most critical component traits for survival, while fruit number is critical for yield per plant. The large S. pimpinellifolium panel evaluated in this study revealed five genotypes possessing better survival traits, seven genotypes with good yield traits, and two genotypes combining both superior survival and yield traits under salt stress.

show abstract

Screening methods for salinity tolerance: a case study with tetraploid wheat

Cited by 661 publications

References 54 publications

Salinity and Water Stress Effects on Biomass Production in Different Arundo donax L. Clones

Salinity and Water Stress Effects on Biomass Production in Different Arundo donax L. Clones

Sodium as nutrient and toxicant

Relationship between survival and yield related traits in Solanum pimpinellifolium under salt stress

Contact Info

Product

Resources

About