Is wheat a salt-tolerant crop?

Wheat (Triticum aestivum) is a moderately salt-tolerant crop (Maas and Hoffman, 1977). In the field, where the salinity rises to 100 mM NaCl (about 10 dS m−1), rice (Oryza sativa) will die before maturity, while wheat will produce a reduced yield.

What is salt-tolerant wheat?

“The salt-tolerant gene (known as TmHKT1;5-A) works by excluding sodium from the leaves. It produces a protein that removes the sodium from the cells lining the xylem, which are the ‘pipes’ plants use to move water from their roots to their leaves,” he says.

Which crops have a high salt tolerance?

Salt tolerance of cereal crops Most of the major cereal crops exhibit high tolerance to soil salinity. In this group are sorghum, wheat, triticale, ripe, oats and barley. Only exceptions are corn and rice.

How does salinity affect wheat?

Both growth and yield of wheat are negatively influenced by salinity (Royo and Abió, 2003). Salinity stress causes osmotic stress and ion toxicity, through increasing the assimilation of Na+ ion and decreasing the Na+/K+ ratio due to lower osmotic potential within the plant roots.

Is Rice a salt tolerant?

Rice is the most salinity-sensitive species among the cereal crops, where 3 dSm–1 of salinity is sufficient to cause significant yield reductions in most cultivated varieties (Eynard et al., 2005). The salt tolerance of rice varies at different growth stages.

What percentage of salt can plants tolerate?

Also, some salts are toxic to plants when present in high concentration. The highly tolerant crops can withstand a salt concentration of the saturation extract up to 10 g/l. The moderately tolerant crops can withstand salt concentration up to 5 g/l. The limit of the sensitive group is about 2.5 g/l.

What does salt-tolerant mean?

The salt tolerance of a plant is often defined as the degree to which the plant can withstand, without significant adverse effects, moderate or high concentrations of salt in water on its leaves or in the soil within reach of its roots. In practice, salt tolerance is a relative term.

Is wheat a Glycophyte?

Wheat being a glycophyte crop, responds differently to saline-sodic soil environmental conditions.

Which crop is salt sensitive?

Leaf damage

What are the salt tolerant plants?

Salt-Tolerant Flowers and Foliage

• Bee balm (Monarda didyma)
• Daylilies (Hemerocallis spp.)
• Moss rose (Portulaca grandiflora)
• Coleus (Plectranthus scrtellarioides)
• Ivy geraniums (Pelargonium peltatum)
• Shrub verbenas (Lantana camara)
• Prickly pear cactus (Opuntia spp.)

What does salt tolerant mean?

How does salt affect rice?

Salinity interferes with rice growth and development, plant adaptation and stress responses. Salinity causes sterility in rice if imposed during pollination and fertilization (Pearson and Bernstein, 1959).

Are there any wheat plants that are salt tolerant?

Little work has been done on breeding for salt tolerance in wheat. Many plant breeders in Australia are aware of the need for salt tolerance but this is only one of a number of constraints, the major one being drought, so salt tolerance is not specifically targeted. Targeted breeding has been largely confined to India and Pakistan.

Is there a way to increase the salt tolerance of wheat?

The potential of wild relatives to improve the salt tolerance of wheat is reviewed by Colmer et al. (2006).

Why are different crops tolerant to different levels of salinity?

Different crops can tolerate different levels of salinity in irrigation water. Many factors influence a plant’s tolerance to salinity, including: climate – particularly the amount and seasonality of rainfall to leach salts from soils soil types and drainage characteristics within the root zone, which influence leaching and salt accumulation

What is the role of potassium transporter in wheat?

In this review, the major role of high-affinity potassium transporter (HKT) genes in enhancing the salt tolerance of wheat is summarized.