Nutritional imbalance in wheat (Triticum aestivum L.) genotypes grown at soil water stress

Ashraf, Muhammad; A, S; Bhatti, A. Saeed

doi:10.1007/s11738-998-0063-8

Cited by 37 publications

(23 citation statements)

References 7 publications

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“…More reduced P and Ca (62 and 34%, respectively) uptake was recorded in the plants where drought was created at flower initiation and at tillering stage, respectively. Water stress has the adverse effect on P uptake; P uptake decreased with decreasing soil moisture in wheat genotypes (Ashraf et al, 1998) and same response was reported by Turner (1985) in pepper. P deficiency appeared in low to moderate level of drought stress (Alam 1994).…”

Section: Discussionsupporting

confidence: 85%

“…Increased Na concentration in plants (due to drought) may cause ion toxicity; with the application of K ion toxicity could be reduced because K is involved in osmotic regulation, maintenance of cell turgor pressure and can effectively compete with Na (Ashraf and Foolad 2005). Under increased drought stress K contents increased as reported by Ashraf et al (1998) and Khondakar et al (1983). Exogenous application of K reduced the adverse effect of drought by reducing the excessive uptake of Na by the plant under drought.…”

Section: Discussionmentioning

confidence: 87%

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Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)

Raza

Saleem

Shah

et al. 2013

J. Soil Sci. Plant Nutr.

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The physiological and nutrient uptake performance of two wheat (Triticum aestivum L.) cultivars (Lasani-2008 and Auqab-2000) to foliar application of 1% potassium (K) at three different growth stages (tillering, flower initiation and grain filling) was investigated under water limited environment in a wire house experiment at the Nuclear Institute for Agriculture and Biology, Faisalabad. The aim was to find out the best K application stage for improvement in drought tolerance potential. Drought stress was created by withholding irrigation at the three growth stages and then K was sprayed with carboxymethyl cellulose as a sticking agent, whereas Tween-20 was used as a surfactant for foliar spray. At maturity, aboveground nitrogen, phosphorus, K, sodium and calcium uptakes by the crop were measured. Besides, water potential, osmotic potential and turgor potential of crop were also estimated. The results indicated that the drought stress at all three critical growth stages of wheat adversely affected plant's nutrient uptake, water potential, osmotic potential and turgor potential of wheat plants. The exogenous application of K under drought stress at all three critical growth stages enhanced tolerance of wheat by reducing toxic nutrient's uptake and improving the physiological efficiency. In this regards, both varieties showed uniform behavior. Maximum improvement in all the recorded nutrients uptake and physiological parameters was achieved when K was applied at grain filling stage of both cultivars.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 87%

Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)

Raza

Saleem

Shah

et al. 2013

J. Soil Sci. Plant Nutr.

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“…It plays a key role in cellular energy transfer, respiration, photosynthesis. Phosphorus uptake decreases with decreasing soil moisture in various crops such as pepper (Turner 1985) and wheat (Ashraf et al 1998). The role of chitosan in increasing ionic content may be due to its effects on stabilizing cellular membranes through increasing antioxidants substances, saving cell membranes from oxidative stress and hence improving plant cell permeability (unpublished data).…”

Section: Discussionmentioning

confidence: 99%

Improving growth and yield of cowpea by foliar application of chitosan under water stress

Farouk¹,

Amany²

2012

Egypt. J. Bio.

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Water stress impaired cowpea plant growth and decreased ion percentage and chlorophyll and carbohydrate concentration in the shoot as well as yield and its quality. Foliar-applied chitosan, in particular 250 mg/l, increased plant growth, yield and its quality as well as physiological constituents in plant shoot under stressed or nonstressed conditions as compared to untreated plants. Anatomically, water stress decreased thickness of leaf blade at midrib region, thickness of mesophyll tissue, thickness of midrib vascular bundle. Treatment with chitosan, in particular, 250 mg/l and their interactions with stress conditions increased all the above mentioned parameters in either non-stressed or stressed plants. It is suggested that the severity of cowpea plants damaged from water stress was reduced by 250 mg/l chitosan application.

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“…The level of their induction is greater under salinity alone than under simultaneous exposure to drought and NaCl. Proline and carbohydrates are important osmolytes to adjust the plant under both drought and salinity conditions and their accumulation in response to excess NaCl was described in several plants (Ozturk et al 1981;Ozturk et al 1986;Ashraf et al 1998;Liu & Staden 2001;Khan 2006;Pan et al 2006;Ozturk et al 2011). …”

Section: Treatmentsmentioning

confidence: 99%

Effect of water stress and NaCl triggered changes on yield, physiology, biochemistry of broad bean (Vicia faba) plants and on quality of harvested pods

Ouzounidou¹,

Ilias

Γιαννακούλα

et al. 2014

Biologia

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Salinity and drought are the most important abiotic stresses affecting crop yield. Broad bean was chosen as model plant for assessing the impact of salt stress and its interaction with drought in the field experiments. The factors examined in the experiments were the two irrigation rates (normal watering -NW with 3 L plant −1 and drought -D) and three salinity rates imposed by foliar application (0, 50, 100 mg L −1 NaCl). Highest NaCl level with normal water irrigation caused maximum reduction in plant height and production, which it was due to photosynthetic disturbances. Salt injuries were alleviated by increasing water stress. The control plants exposed to NaCl lost their ability over water control. The increased malondialdehyde (MDA) and H2O2 indicate the prevalence of oxidative stress due to salinity. The levels of proline and carbohydrates were higher under salinity alone than under simultaneous exposure to drought and NaCl. The protein concentration of immature and mature broad bean pods was more inhibited more by NaCl supply than by drought alone. The combination of drought and NaCl resulted in a significant increase in proteins, glucose, fructose and sucrose content. Overall, the ameliorative effect of drought under NaCl supply was quantified.

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Nutritional imbalance in wheat (Triticum aestivum L.) genotypes grown at soil water stress

Cited by 37 publications

References 7 publications

Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)

Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)

Improving growth and yield of cowpea by foliar application of chitosan under water stress

Effect of water stress and NaCl triggered changes on yield, physiology, biochemistry of broad bean (Vicia faba) plants and on quality of harvested pods

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