Combined effect of a possible best treatment for both soil and plant on increasing the salt tolerance in sugar beet plants grown on a calcareous soil under salinity stress
Abstract: In an endeavour to alleviate the problems of salinity stress, some possible manipulation of soil and plant were evaluated. Two separate experiments were carried out to achieve the main objective of this research. The first was pot experiment, using sand culture technique to estimate the relative salt tolerance of four sugar beet varieties. The plants being treated with a mixture of NaCl and CaCl2 (1:1 w/w) at levels of 1, 50, 100, 150 and 200 meq/L after the third leaf had emerged. Results showed that Tribel was a relatively salt-tolerant and Ras poly was a relatively salt-sensitive variety.
The second was a field experiment, which carried out at Nubaria Agric. Res. Station in winter season 2004/2005 to study the combined effect of possible best treatments of both soil and plant on enhancing the salt-tolerance in relatively salt-sensitive variety (Ras poly) in calcareous soil under salinity conditions (ECe 10 dS/m). The soil amended with chicken manure treatments (0, 5 and 7.5 m3/fed., while the plants treated with a combined (arginine and glutamic) amino acids, each in 0, 10, 20 and 30 mg/L, as well as potassium concentrations (0, 0.5, 1.0 and 1.5% K2O) as foliar spray and/or foliarly applied after 40 and 60th day of sowing. After the 120th day of sowing, fresh and dry weight of both roots and shoots, water content, proline, K and Na contents were determined as well as Na/K ratio was calculated. Root yield, shoot yield, sucrose percentage in roots and gross sugar yield were also determined at harvesting stage.
Generally, results indicated that the application of chicken manure as well as combined (arginine and glutamic) amino acids and potassium to sugar beet plants through foliar spray was associated with an increase in fresh and dry weight, water content, proline and K content. For both roots and shoots after 4 months from sowing. Chicken manure was more effective particularly at 7.5 m3/fed, opposite trend was observed in Na-content and Na/K ratio. Shoots being more affected. At harvesting, similar trends were observed in root and shoot yields as well as sucrose percentage and gross sugar yield in roots compared with untreated soil and plant treatments.
In fact, increasing levels of proline and potassium in plant tissues appears to function as compatible cytoplasmic solutes in osmotic adjustment. Also, results indicated the ability of salt-sensitive variety of sugar beet plant treated with chicken manure (7.5 m3/fed) treatment followed by foliar application with combined (arginine and glutamic) amino acids and potassium at rates of 20 mg/L and 1% respectively, to withstand unfavorable effect of salinity stress in calcareous soils
Publication year 2006
Pages 553-573
Availability location Soils, Water and Environment Research Institute, ARC
Availability number
Organization Name
City Cairo
serial title J. Biol. Chem. Environ. Sci
ISSN 1687-5478
Department Improvement and Conservation of Cultivated Soils Research
Author(s) from ARC
Agris Categories Soil erosion, conservation and reclamationSoil fertilityWater resources and management
AGROVOC
TERMS		 Calcareous soils. Salinity. Salt tolerance. Sugarbeet.
Publication Type Journal
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