Evaluation of salt-tolerant genotypes of durum wheat derived from in vitro and field experiments

Houshmand, S.; Arzani, Ahmad; Maibody, S. A. M.; Feizi, Mohammad Ali Hosseinpour

doi:10.1016/j.fcr.2004.08.004

Cited by 106 publications

(75 citation statements)

References 31 publications

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“…The leaf K + /Na + ratio of genotypes was significantly (P < 0.01) reduced as plants were subjected to salinity stress ( Table 2). Decrease of K + /Na + ratio in response to salinity stress has been previously observed in bread (Dvorak et al, 1994) and durum wheat (Meneguzzo et al, 2000;Houshmand et al, 2005). Comparatively, in our study it was found that F 8 lines had higher K + /Na + ratio than DH lines under both growth conditions (Table 2).…”

Section: Resultssupporting

confidence: 64%

“…According to Cachorro et al (1994), a high Ca 2+ concentration could decrease the Na + toxicity. Houshmand et al (2005) reported that shoot Ca 2+ /Na + ratio increased with increase in NaCl concentration of the growth medium. Our data revealed significant differences between triticale lines and wheat cultivars for Ca 2+ /Na + ratio with triticale lines being significantly (P < 0.01) superior under both conditions.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, understanding the salt tolerance mechanisms such as Na + exclusion, K + /Na + discrimination and osmotic adjustment is essential to improve salt tolerance in crop plants. Low Na + accumulation and high K + /Na + discrimination have been found to be strongly contribute to enhanced salinity tolerance in bread wheat (Santa-Maria and Epstein, 2001) and in durum wheat (Houshmand et al, 2005). Osmotic adjustment is a fundamental adaptive response of plant cells to salinity, helping the maintenance of turgor under saline conditions (Serrano et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of triticale genotypes for salt tolerance using physiological traits

Salehi

Arzani

2014

Emir. J. Food Agric

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Salinity is one of the major constraints to plant production worldwide. The effect of terminal salinity on the physiological traits of 18 triticale (X. triticosecale) lines comprising nine doubled haploid (DH) and nine corresponding advanced lines (F 8 ) and two bread wheat cultivars (control) was investigated under field conditions. Salt-stressed experiment was irrigated using saline water with EC = 16 ds m-1 from mid-jointing growth stage (Zadoks 43) onward. Na + concentration, K + /Na + ratio, Ca 2 + /Na + ratio, chlorophyll content, carotenoids content, proline content and grain yield were assessed. A high correlation coefficient (r=0.84**) was obtained between K + /Na + ratio and grain yield under saline field conditions. The results also revealed an inverse and significant relationship between grain yield loss due to salinity with K + /Na + ratio, proline and carotenoids content under saline stress provided evidence supporting the role of K + /Na + ratio in salinity tolerance. F 8 line number 6 possessed the highest values for carotenoids content, Ca 2 + /Na + ratio and proline content as well as the least Na + concentration under salt-stressed conditions, accompanied by having the least grain yield loss due to salinity, was ranked this line as superior salt-tolerant genotype.

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Section: Resultssupporting

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of triticale genotypes for salt tolerance using physiological traits

Salehi

Arzani

2014

Emir. J. Food Agric

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“…Initially, mutant plants were acclimatized to room temperature i.e., at 25 ± 3°C because direct plantation at high temperature in field could be unfavorable for the establishment moreover against both salinity as well as drought condition the mutant plant indicated a wide range of variations in all the parameters tested i.e., shoot and root length, fresh and dry root, shoot biomass and number of leaves with respect to control (Table 3). Houshmand et al conducted the field trial on wheat to check its performance under saline and non-saline field conditions [48]. The results suggest that invitro-induced mutagenesis followed by in-vitro selection can be applied to induce genetic variation for salt tolerance, besides improving agronomic characteristics in Picrohiza kurroa Royle ex.…”

Section: Discussionmentioning

confidence: 99%

In-vitro Mutagenesis Induction to Improve Abiotic Stress in Tissue Cultured Plantlet of Picrohiza kurroa Royle ex. Benth: An Endangered Plant of Western Himalayas, India

Bisht¹,

Bisht²,

Chauhan³

2017

Med Aromat Plants

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The study is focused to establish an improved salt and drought tolerant Picrohiza kurroa Royle ex Benth, an endangered medicinal plant of Western Himalayas through mutagenesis system in conjunction with in-vitro regeneration technique. Regeneration using leaf as explants from mature plant of characterized germplasm is beneficial because the source plant is not damaged. Efficient callus formation i.e., 85% was achieved in modified MS medium at 2,4-D at 3.5 mg L -1 . Ethyl methane sulfonate (EMS) a chemical mutagen was used to induce mutation in the callus biomass under in-vitro condition. Relatively decreases in callus biomass were observed as the dose of mutagenic chemical increased from 0.0 to 0.8 mM. Selection of mutants callus lines were also investigated against salt (NaCl) and drought (mannitol) tolerance level by using its various concentrations i.e., 50 to 250 mM L -1 . In mutagenized callus (MC) under both stress responses there was increase in callus biomass with the successive increase in concentration of NaCl and Mannitol till 100 mM L -1 , after that it started decline. Stress tolerated mutant callus line were also characterized by the accumulation of proline and glycine betaine (GB) content. At 100 mM L -1 concentrations of NaCl and mannitol, higher proline and GB content were accumulated in the mutagenized callus i.e., 5.23 and 5.18 μmol g -1 FW and 11.23 and 11.98 μg g -1 FW respectively which is significantly higher in comparison to non-mutagenized callus (UM). For shoot proliferation in mutant callus line, various concentrations with combination of plant growth regulators (PGR's) were used in treatments (T1, T2 and T3). Invariably, in treatment T3 the concentration of 1.0+0.5 mg L -1 resulted in highest shoot regeneration i.e., 85% while minimum 20% was obtained in T1 at concentration 0.5+0.1 mg L -1 . NAA fortified MS medium was found superior to IAA and IBA with respect to the induction of roots. The mutant and stress selected grown through tissue engineering were evaluated for their ex situ agronomic performance in saline as well as drought condition for 30 days. Under both stress condition the mutant plant revealed a remarkable increase in all the parameters studied i.e., shoot and root length, fresh and dry root, shoot biomass and number of leaves with respect to normal plant (control).

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“…Roudasht district with the area of about 50 000 ha, which is located about 65 km east of Isfahan (32°29'N, 52°10'E), is one of the salt-affected zones of the Isfahan province (Houshmand et al 2005). In this district, shallow saline groundwater with the depth of about 2-4 m below soil surface and salinity of about 13 dS/m, low annual precipitation about less than 100 mm per year, high evapotranspiration and the use of saline drainage water for irrigation, caused several problems for soil and agricultural production, especially for wheat (Feizi 1993).…”

Section: Methodsmentioning

confidence: 99%

Effects of leaching on soil desalinization for wheat crop in an arid region

Mostafazadeh‐Fard¹,

Heidarpour²,

Aghakhani³

et al. 2008

PLANT SOIL ENVIRON

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Leaching is one of the most practical methods for improvement of saline soils and both the quality and the quantity of leaching water play an important role in desalinization of these soils. To determine the effects of different qualities and quantities of leaching water on salinity of drainage water during the growing season of wheat, pot experiments were conducted with a silty clay loam soil, a typical salt-affected soil in an arid region of central part of Iran. The experiment comprised the treatments of three irrigation water salinities (4, 9 and 12 dS/m) and four leaching levels (3, 20, 29 and 37%), using a factorial design with seven replications for each treatment. The results showed that at the beginning of the growing season the drainage water salinity was highest for all treatments. Then it started to decrease and depending on the quality and quantity of leaching water it became nearly constant or continued to decrease until the end of the growing season. The leaching of salts from the soil profile was more efficient during the first few irrigations and thereafter became less efficient. The increase of leaching level had a significant effect on the decrease of drainage water salinity. The comparison with steady-state mass balance of soil salt, sodium and chloride showed that the simple ratio of chloride in irrigation water to chloride in drainage water can be used to estimate the leaching fraction of saline soils with high accuracy.

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Evaluation of salt-tolerant genotypes of durum wheat derived from in vitro and field experiments

Cited by 106 publications

References 31 publications

Evaluation of triticale genotypes for salt tolerance using physiological traits

Evaluation of triticale genotypes for salt tolerance using physiological traits

In-vitro Mutagenesis Induction to Improve Abiotic Stress in Tissue Cultured Plantlet of Picrohiza kurroa Royle ex. Benth: An Endangered Plant of Western Himalayas, India

Effects of leaching on soil desalinization for wheat crop in an arid region

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