I. Rajpar
Department of Soil Science, Faculty of Crop Production Sindh Agriculture University Tando Jam, Pakistan
N.B. Sial
Department of Soil Science, Faculty of Crop Production Sindh Agriculture University Tando Jam, Pakistan
ABSTRACT
A pot experiment in a clay loam soil was conducted to investigate the effect of high soil sodicity with poor (ESP 50) and stable structure (ESP 50 + plolyacrylamide (PAM)) and high soil salinity (ECe 19 dS/m) on seeding emergence and growth of eight (Kharchia-65, Anmol, NIAB-20, PAK-81, TW-161, Bakhtwar, KTDH-19 and SARC-1) wheat varieties. Seeding emergence, shoot height, shoot dry weight and root length were decreased by both salinity and sodicity. With the exception of seedling emergence, the effects of sodicity were greater than salinity. On the basis of shoot dry weight as an indicator some varieties (PAK-81, Bakhtwar, KTDH-19 and Anmol) were susceptible to both stresses and showed large decreases. In some varieties (SARC-1, TW-161, NIAB-20 and Kharchia-65) the effects of sodicity were greater than salinity, where as in others this trend was reversed. Addition of soil conditioner (PAM) in presence of high ESP increased water stable aggregates % which resulted in increase in seedling emergence, shoot height and shoot dry weight. All varieties except Bakhtwar, KTDH-19 and SARC-1 showed positive response to improved soil structure. However, the response was greater in some varieties (TW161, PAK-81 and Kharchia-65) than (Anoml and NIAB-20 others.
PDF References Citation
How to cite this article
I. Rajpar and N.B. Sial, 2002. Effect of Soil Salinity and Sodicity with and Without Soil Conditioner (polyacrylamide) on the Seedling Emergence and Growth of Different Wheat Varieties. Journal of Applied Sciences, 2: 631-636.
DOI: 10.3923/jas.2002.631.636
URL: https://scialert.net/abstract/?doi=jas.2002.631.636
DOI: 10.3923/jas.2002.631.636
URL: https://scialert.net/abstract/?doi=jas.2002.631.636
REFERENCES
- Allison, L.E., 1952. Effect of synthetic polyelectrolytes on the structure of saline and alkali soils. Soil Sci., 73: 443-454.
Direct Link - Barzaegar, A.R., P.N. Nelson, J.M. Oades and P. Rengasamy, 1997. Organic matter, sodicity and clay type: Influence on soil aggregation. Soil Sci. Soc. Am. J., 61: 1131-1137.
Direct Link - Boem, G. and R.S. Lavado, 1996. The effects of soil sodicity on emergence, growth, pevelopment and yield of oilseed rape (Brassica napus). J. Agric. Sci., 126: 169-173.
Direct Link - Chhipa, B.R. and P. Lal, 1995. Na/K ratio as the basis of salt tolerance in wheat. Aust. J. Agric. Res., 46: 533-539.
CrossRefDirect Link - Cook, D.F. and S.D. Nelson, 1986. Effect of polyacrylamide on seedling emergence in crustforming soils. Soil Sci., 141: 328-333.
Direct Link - Gorham, J., 1994. Salt tolerance in the Triticeae: K/Na discrimination in some perennial wheatgrasses and their amphiploids with wheat. J. Exp. Bot., 45: 441-447.
CrossRefDirect Link - Gorham, J., J. Bridges, J. Dubcovesky, J. Dvorak, P.A. Hollington, M.C. Lue and J.A. Khan, 1997. Genetic analysis and physiology of trait for enhanced K+/Na+ discrimination in wheat. New Phytol., 137: 109-116.
Direct Link - Joshi, Y.C., A. Qadar and R.S. Rana, 1979. Differential sodium and potassium accumulation related to sodicity tolerance in wheat. Indian J. Plant Physiol., 22: 226-230.
Direct Link - Saleh, M.A. and J. Letey, 1990. Physical properties of sodium-treated soil as affected by two polymers. Soil Sci. Soc. Am. J., 54: 501-504.
Direct Link