Varietals differences in agronomic performance of six wheat varieties grown under saline field environment

Ahmad, Munir; Niazi, B. H.; Zaman, Badar-uz; Athar, Mohammad

doi:10.1007/bf03325857

Cited by 10 publications

(6 citation statements)

References 13 publications

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“…The question that arises here is: are these same criteria reliable under field conditions? The results obtained by Chhipa and Lal (1995) and Ahmad et al. (2005) for wheat genotypes grown under controlled and field condition, respectively indicated that K + /Na + discrimination rather than Na + alone has been used as a potential criterion for salt‐tolerance screening at both conditions.…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Screening Criteria for Salt Tolerance in Wheat under Field and Controlled Environmental Conditions

El-Hendawy

Ruan

et al. 2009

J Agronomy Crop Science

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Although many screening criteria have been suggested to distinguish between genotypes for their salt tolerance under controlled environmental conditions, there is a need to test these criteria in the field. Saline soils are often complex and, therefore, unlikely to show a simple relationship to controlled conditions. To address this deficit, different agronomic and physiological screening criteria for salt tolerance in wheat at different stages were examined under both field and controlled conditions. Four wheat genotypes differing in their salt-tolerance levels were grown in salt-affected soil at two different locations and also under greenhouse conditions. Dry weight and leaf area of the upper and lower two leaves of the main stem and total dry weight at Zadoks scale 47 were measured in plants grown under field conditions. The concentrations of Cl ) , Na + , K + and Ca 2+ in the upper and lower two leaves of the main stem at Zadoks scale 47 and different yield components were measured in plants grown under both conditions. Our results indicate that measurements derived from the upper two leaves of the main stem were generally more effective as screening criteria than those from the lower two leaves. Correlation coefficients between grain yield and either dry weight or leaf area of the upper two leaves of the main stem indicated that dry weight is inferior to leaf area as a screening criterion under field conditions. Number of sterile spikelets per plant performed well under both conditions, whereas the number of spikelets per plant and 1000-grain weight failed to distinguish the differences of salt-tolerance levels among genotypes accurately. Weight and number of grains per plant and number of fertile spikes per plant were poor criteria under controlled conditions, but effective under field conditions. The maintenance of low Cl ) and Na + concentrations in the upper two leaves offered the best guide to salt tolerance under both conditions. Potassium concentration was a poor criterion compared with the selectivity of K + over Na + , which was useful under both field and controlled conditions. Calcium concentration and Ca 2+ over Na + selectivity in the upper and/or lower two leaves of the main stem were also effective in ranking genotypes according to their salt tolerance under both field and controlled conditions. Therefore, we conclude that simple measurements of the upper two leaves of the main stem including a straightforward measurement of leaf area, visually estimating the number of sterile spikelets, and a quick, practical determination of Na + and Ca 2+ concentration constitute effective criteria to screen wheat genotypes for salt tolerance under both field and controlled conditions.

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Section: Introductionmentioning

confidence: 99%

A Comparison of Screening Criteria for Salt Tolerance in Wheat under Field and Controlled Environmental Conditions

El-Hendawy

Ruan

et al. 2009

J Agronomy Crop Science

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“…WL causes a condition of hypoxia in soils, because of the low solubility of oxygen in water (0.28 mol m −3 at 20°C), the slow diffusivity in water-filled pores (≈10,000 fold slower than gas-filled soil pores, Grable 1966) and the rapid use of dissolved oxygen by bacteria and roots. Recent progress in molecular genetics and plant electrophysiology suggests that the ability of a plant to maintain a high cytosolic K + / Na + ratio appears to be critical to plant salt tolerance (Ahmad et al 2005). So far, the major efforts of plant breeders have been aimed at improving this ratio by minimizing Na + uptake and transport to shoot (Shabala and Cuin 2007).…”

Section: Introductionmentioning

confidence: 99%

Individual and combined effects of waterlogging and alkalinity on yield of wheat (Triticum aestivum L.) imposed at three critical stages

Sharma

Choi

2010

Physiol Mol Biol Plants

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Response of wheat genotype HD 2329 to individual and combined effects of alkalinity and waterlogging (WL) at tillering, panicle emergence and anthesis stage was studied. Both stresses increased Na accumulation and reduced K uptake which leads to higher Na(+)/K(+) ratio in the leaves. Yield was decreased under all the stress treatments and highly correlated with Na(+)/K(+) ratio at all the three growth stages (r = -0.83, -0.82 and -0.73, respectively) with maximum reduction under pH 9.4 + WL. Increase in pH from 7.2 to 9.1 and 9.4 delayed complete panicle emergence (4 and 8 days) and flowering (1 and 2 days) at both, tillering and panicle emergence stages. Dual stress further increased days, required for complete panicle emergence and flowering. These results suggested that high Na(+)/K(+) ratio of plant tissue may be the critical factor for growth and development of wheat under WL, alkalinity and dual stress. Due to this delay in flowering and panicle emergence, times required for maturity of grains shorten, resulted in lower grain yield.

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“…The increase in some of the measured traits due to increased salinity may point to the fact that tritipyrum is potentially a halophyte cereal (Table 1). It has also been reported that grain weight has a significant effect on grain yield and that a strong correlation was observed between grain weight and grain yield in rice (Ahmad et al, 2005).…”

Section: Discussionmentioning

confidence: 72%

“…These results are consistent with the findings of El-Hendavy et al, (2005) and Zeng et al, (2002) who have reported that the number of grain per plant is a poor selecting criterion for determining the salttolerance of rice and wheat under control condition. However, other researchers have found that reduction in the number of grains causes reduction in the grain yield of wheat and they have accordingly introduced it as a suitable screening criterion for the salt tolerance of wheat (Ahmad et al, 2005;Grewal, 2010). Moreover, the number of spikelet per spike has shown to be an effective criterion for screening wheat genotypes in terms of salt tolerance and this trait had indeed a highly significant correlation with grain yield (El-Hendawy et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Tritipyrum (Triticum durum × Thinopyrum bessarabicum) might be able to provide an economic and stable solution against the soil salinity problem

Kamyab¹,

Kafi²,

Hassani³

et al. 2018

Aust J Crop Sci

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The novel salt tolerant cereal, Tritipyrum, was suggested as a potential species for cultivation in saline soils to improve s alt tolerance in wheat via breeding programs. Hence, investigation of its reaction to salinity stress, especially at different growth stages, seems to be necessary. For this purpose, an experiment was conducted using hydroponic technique in controlled as well as field conditions. Nine tritipyrum lines were tested under three levels of salinity (50, 100 and 200 mM NaCl) in hydroponic culture. Then, based on the results, three tritipyrum lines along with one wheat cultivar were cultivated in the field under three levels of salinity of irrigation water (control, 7dS/m and 14dS/m). In the hydroponic test, according to the statistical analysis of the genotypes based on their vegetative, reproductive and seed maturity traits, tritipyrum lines were more salt tolerant than salt tolerant wheat cultivar. Also cluster analysis showed that (St/b)×(Cr/b), F4 and Az/b were the most salt tolerant tritipyrum lines. Furthermore, based on the field trial, tritipyrum lines showed better performance and produced higher grain yield as well as higher grain protein content than wheat cultivar in saline condition. Based on our results, it is conceivable to improve the salt tolerance of wheat through breeding programs. Tritipyrum lines can also be cultivated in saline soils as fodder or forage crop.

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Varietals differences in agronomic performance of six wheat varieties grown under saline field environment

Cited by 10 publications

References 13 publications

A Comparison of Screening Criteria for Salt Tolerance in Wheat under Field and Controlled Environmental Conditions

A Comparison of Screening Criteria for Salt Tolerance in Wheat under Field and Controlled Environmental Conditions

Individual and combined effects of waterlogging and alkalinity on yield of wheat (Triticum aestivum L.) imposed at three critical stages

Tritipyrum (Triticum durum × Thinopyrum bessarabicum) might be able to provide an economic and stable solution against the soil salinity problem

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