Variability for Salt Tolerance in Sorghum bicolor (L.) Moench. under Hydroponic Conditions

Azhar, F. M.; McNeilly, T.

doi:10.1111/j.1439-037x.1987.tb00100.x

Cited by 48 publications

(20 citation statements)

References 26 publications

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“…Crop genotype may germinate effectively under salt stress; nevertheless, its seedling growth will be affected (Azhar and McNeilly, 1987). Contrary to this, accessions 237186, 237131 and variety DZ-Cr-37 that were the most salt tolerant genotypes in terms of final germination percentage (FGP) and germination rate (GR) showed promising seedling growth.…”

Section: Discussionmentioning

confidence: 93%

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Screening Some Tef [Eragrostis Tef (Zucc.)Trotter] Accessions/Varieties for Salt Tolerance during Germination and Seedling Stage

Asfaw¹,

Itanna²

2009

mejs

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Salinity is a continuing problem in the arid and semi-arid tracts of the world. It could be alleviated using irrigation management and/or crop management. However, the former approach is outdated and very expensive. Nevertheless, the latter is economical as well as efficient, and it enables to produce salt tolerant crop lines. But prior to that there is a need to confirm the presence of genetic based variation for salt tolerance among different species or varieties of a particular crop that can thrive under unreliable agro-ecological situations; tef [Eragrostis tef (Zucc) Trotter] is one of such crops. Thus fifteen lowland tef genotypes (10 accessions and 5 varieties) were tested during germination and seedling stage at 2dS/m, 4dS/m, 8dS/m, 12dS/m and 16dS/m salinity levels. Distilled water (0dS/m) was used as a control. Data analysis was carried out using SAS package. Germination percentage (GP), germination rate (GR), seedling shoot length (SSL) and seedling root length (SRL) were measured. The analyzed data showed significant variation among most parameters recorded for accessions and varieties (p < 0.01) and for treatments (p < 0.001). Germination rate and seedling root length were more salt affected than final germination percentage and seedling shoot length respectively. The main cause for reduced and delayed germination percentage was osmotic effect. The ion effect was also learned to be minimal. Most accessions and varieties failed to germinate at 12dS/m and 16dS/m salinity levels. Thus, these salt concentrations were not important in screening tef genotypes for salt tolerance. Varieties such as DZ-01-1281, DZ-Cr-358 and accession 236512 were found to be salt sensitive. However, variety DZ-Cr-37 and accessions 237186, 237131 and 212928 were found to be salt tolerant. The rest accessions and varieties were intermediate in their salt tolerance. The study affirmed the presence of broad intraspecific variation among tef accessions and varieties for salt tolerance but more in the former.

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Section: Discussionmentioning

confidence: 93%

“…A seed was considered to have germinated when both the plumule and the radicle emerged > 0.5cm. After 13 days, overall shoot and the longest root length of ten randomly selected seedlings from each replicate were measured using a draftsman ruler (Azhar and McNeilly, 1987).…”

Section: Methodsmentioning

confidence: 99%

Screening Some Tef [Eragrostis Tef (Zucc.)Trotter] Accessions/Varieties for Salt Tolerance during Germination and Seedling Stage

Asfaw¹,

Itanna²

2009

mejs

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“…Assessment of differences in salinity tolerance in large numbers of lines under field conditions is however difficult due to the large variation in salinity levels within a single field (Richards, 1983). Solution culture methods allow precise control of salinity over long periods of growth, and have been used by a number of workers to examine variation in salinity tolerance both between, and within, a range of species, including wheat (Kingsbury et al, 1984), maize (Ashraf & McNeilly, 1989), sorghum, Sorghum bicolor (L.) Moench (Azhar & McNeilly, 1987), tall wheat grass, Agropyron elongarum (Host) P.B. (Shannon, 1978), lettuce (Shannon et al, 1983).…”

Section: Discussionmentioning

confidence: 99%

Between and within cultivar variability in salt tolerance in lucerne, (Medicago sativa L.)

Al-Khatib

McNeilly

Collins

1994

Genet Resour Crop Evol

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The response of two-week-old seedlings of 35 cultivars of lucerne (Medicago sativa L.) to increasing NaCl concentrations was assessed in solution culture under growth room conditions. Shoot length, used as the criterion for assessing salt tolerance, was found to decrease significantly with increasing NaCl concentration for all cultivars, but there was considerable variation in response between, and within cultivars. It is concluded that selection between and within cultivars should lead to increased salt tolerance in this species.

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“…It has been argued that selection for salinity tolerance at the seedling stage may not produce tolerant adult plants (Kingsbury and Epstein, 1984;Shannon, 1979). In contrast, the performance of seedlings under saline conditions has been considered highly predictive of the response of adult plants to salinity (Azhar and McNeilly, 1987;Blum, 1985;Greenway, 1965). Norlyn (1980), Kingsbury and Epstein (1984), and working with barley, wheat, and seven grass species, screened seedlings of these species and derived plants that showed considerable tolerance to salinity at the adult stage.…”

Section: Discussionmentioning

confidence: 99%

Screening of local/exotic accessions of lentil (Lens culinaris Medic.) for salt tolerance at two growth stages

Ashraf

Waheed

1990

Plant Soil

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Screening of available local/exotic germplasm of a crop for salinity tolerance is of considerable value for the economic utilization of salt-affected soils of arid and semi-arid regions.The response of 133 lentil (Lens culinaris Medic.) accessions, to NaC1 at the germination and seedling stage, was examined. A great amount of variation of NaC1 tolerance in lentil was observed at both the growth stages but, in general, there was no consistent relationship between tolerance assessed at germination or at the seedling stage. In the NaCI treatment five accessions, ILL 5845, ILL 6451, ILL 6788, ILL 6793, and ILL 6796 produced significantly greater fresh and dry plant biomass in both absolute and relative terms than the others, but these accessions performed as well as other intermediate or low biomass producing accessions in total germination percentage and rate of germination. In view of the existence of the great amount of variability of tolerance to NaCI among lentil varieties improvement in NaC1 tolerance in this species is possible.

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Variability for Salt Tolerance in Sorghum bicolor (L.) Moench. under Hydroponic Conditions

Cited by 48 publications

References 26 publications

Screening Some Tef [Eragrostis Tef (Zucc.)Trotter] Accessions/Varieties for Salt Tolerance during Germination and Seedling Stage

Screening Some Tef [Eragrostis Tef (Zucc.)Trotter] Accessions/Varieties for Salt Tolerance during Germination and Seedling Stage

Between and within cultivar variability in salt tolerance in lucerne, (Medicago sativa L.)

Screening of local/exotic accessions of lentil (Lens culinaris Medic.) for salt tolerance at two growth stages

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