Super Absorbent Polyacrylate (SAP) hydrogels absorb and store water thereby aiding plant establishment when incurporated in the soil. The effect of cross-linked SAP hydrogel amendment on the performance of tree seedlings of Picea abies , Pinus sylivestris and Fagus sylvatica grown in temperate soils under water stress and non-water stress periods was investigated in a green house. The objective was to compare the root and shoot biomass of seedlings of the three species grown in sand, loam and clay soils amended with 0.4% w/w hydrogel in non water stress conditions as well as survival, root and shoot biomass after subjection to water stress. The seedlings were grown for 16 weeks, harvested and shoot as well as root biomass determined before water stress. The seedlings were also subjected to water stress and the ir biomass assessed at death following the water stress. The results show ed that root and shoot biomass were generally higher in hydrogel amended soils compared to the controls. Root and shoot biomass of Fagus sylvatica was lower compared to Picea abies and Pinus sylivestris before water stress. The 0.4% hydrogel amendment significantly increased species’ survival in the different soils studied. Although root biomass was higher in hydrogel amended sandy soil compared to other soils, P. sylivestris and F. sylvatica shoot biomass w ere higher in hydrogel amended clay and loam soils compared to the sandy soil after water stress. Biomass was higher in sand compared to loam and clay soils under non-water and water stressed conditions. Since SAP hydrogel amendment improved the survival and biomass production of tree seedlings before and after water stress, use of SAPs could be promoted to enhance seedling production in water stress and non-water stress environments.
KeywordsDesiccationNon-Water StressSAPsSoil AmendmentTree Species
J. Six, C. Feller, K. Denef, S. M. Ogle, J. C. Moraes Sa and A. Albrecht, “Soil Organic Matter, Biota and Aggregation in Temperate and Tropical Soils—Effects of No-Tillage,” Agronomie, Vol. 22, No. 7-8, 2002, pp. 755-775. doi:10.1051/agro:2002043
S. S. Dorraji, A. Golchin and S. Ahmadi, “The Effects of Hydrophilic Polymer and Soil Salinity on Corn Growth in Sandy and Loamy Soils,” Clean-Soil, Air, Water, Vol. 38, No. 7, 2010, pp. 584-591.
A. Hüttermann, L. J. B. Orikiriza and H. Agaba, “Application of Superabsorbent Polymers for Improving the Ecological Chemistry of Degraded or Polluted Lands,” Clean-Soil, Air, Water, Vol. 37, No. 7, 2009, pp. 517-526. doi:10.1002/clen.200900048
A. Hüttermann, M. Zommorodi and K. Reise, “Addition of Hydrogels to Soil for Prolonging the Survival of Pinus halepensis Seedlings Subjected to Drought,” Soil & Tillage Research, Vol. 50, No. 3-4, 1999, pp. 295-304. doi:10.1016/S0167-1987(99)00023-9
F. Yazdani, I. Allahdadi and G. A. Akbari, “Impact of Superabsorbent Polymer on Yield and Growth Analysis of Soybean (Glycine max L.) under Drought Stress Condition,” Pakistan Journal of Biological Sciences, Vol. 10, No. 23, 2007, pp. 4190-4196. doi:10.3923/pjbs.2007.4190.4196
M. S. Johnson, “Effects of Soluble Salts on Water Absorption by Gel-Forming Soil Conditioners,” Journal of the Science of Food and Agriculture, Vol. 35, No. 10, 1984, pp. 1063-1066. doi:10.1002/jsfa.2740351004
J. M. Gehring and A. J. Lewis, “Effects of Hydrogel on Wilting and Moisture Stress of Bedding Plants,” Journal of the American Society for Horticultural Science, Vol. 105, No. 4, 1980, pp. 511-513.
M. Sarvas, “Effect of Desiccation on the Root System of Norway Spruce (Picea abies [L.] Karst.) Seedlings and a Possibility of Using Hydrogel STOCKOSORB for Its Protection,” Journal of Forest Science, Vol. 49, No. 11, 2003, pp. 531-536.
E. M. A. Youssef, “Influence of Hydrogels Compounds on Acclimatization Behavior of Acacia Melanoxylon. Br. Vitroplants,” Acta Horticulturae, Vol. 608, 2003, pp. 81-84.
J. Akhter, K. Mahmood, K. A. Malik, A. Mardan, M. Ahmad and M. M. Iqbal, “Effects of Hydrogel Amendment on Water Storage of Sandy Loam and Loam Soils and Seedling Growth of Barley, Wheat and Chickpea,” Plant, Soil and Environment, Vol. 50, No. 10, 2004, pp. 463-469.
V. Arbona, J. D. Iglesias, J. Jacas, E. Primo-Millo, M. Talon and A. Gomez-Cadenas, “Hydrogel Substrate Amendment Alleviates Drought Effects on Young Citrus Plants,” Plant and Soil, Vol. 270, No. 1, 2005, pp. 73-82. doi:10.1007/s11104-004-1160-0
K. G. Apostol, D. F. Jacobs and R. K. Dumroese, “Root Desiccation and Drought Stress Responses of Bare Root Quercus rubra Seedlings Treated with a Hydrophilic Polymer Root Dip,” Plant and Soil, Vol. 315, No. 1-2, 2009, pp. 229-240. doi:10.1007/s11104-008-9746-6
J. Abedi-Koupai, S. S. Eslamian and J. A. Kazemi, “Enhancing the Available Water Content in Unsaturated Soil Zone Using Hydrogel, to Improve Plant Growth Indices,” Ecohydrology and Hydrobiology, Vol. 8, No. 1, 2008, pp. 67-75.
H. Agaba, L. J. B. Orikiriza, J. F. O. Esegu, J. Obua, J. D. Kabasa and A. Hüttermann, “Effect of Hydrogel Amendment to Different Soils on Plant Available Water and Survival of Trees under Drought Conditions,” Clean-Soil, Air, Water, Vol. 38, No. 4, 2010, pp. 328-335. doi:10.1002/clen.200900245
J. P. Syvertsen and J. M. Dunlop, “Hydrophilic Gel amendments to Sand Soil Can Increase Growth and Nitrogen Uptake Efficiency of Citrus Seedlings,” Horticultural Science, Vol. 39, 2004, pp. 267-271.
L. J. B. Orikiriza, H. Agaba, G. Eilu, M. Tweheyo, J. D. Kabasa and A. Hüttermann, “Amending Soils Hydrogels Increases the Biomass of Nine Tree Species under Non-Water Stress Conditions,” Clean-Soil, Air, Water, Vol. 37, No. 8, 2009, pp. 615-620. doi:10.1002/clen.200900128
K. C. Taylor and R. G. Halfacre, “The Effect of Hydrophilic Polymer on Media Water Retention and Nutrient Availability to Ligustrum lucidum,” Horticultural Science, Vol. 21, 1986, pp. 1159-1161.
J. M. Woodhouse and M. S. Johnson, “The Effect of a Gel Forming Polymer on Seed Germination and Establishment,” Journal of Arid Environments, Vol. 20, 1991, pp. 375-380.
M. Silberbush, E. Adar and Y. De-Malach, “Use of an Hydrophilic Polymer to Improve Water Storage and Availability to Crops Grown in Sand Dunes. I. Corn Irrigated by Trickling,” Agricultural Water Management, Vol. 23, No. 4, 1993, pp. 303-313. doi:10.1016/0378-3774(93)90042-9
A. M. Al-Omran and A. R. Al-Harbi, “Improvement of Sandy Soils with Soil Conditioners,” In: A. Wallace and R. E. Terry, Eds., Handbook of Soil Conditioners: Substances That Enhance the Physical Properties of Soil, Marcel Dekker, Inc., New York, 1997, pp. 363-384.
A. I. Al-Humaid and A. E. Moftah, “Effects of Hydrophilic Polymer on the Survival of Buttonwood Seedlings Grown under Drought Stress,” Journal of Plant Nutrition, Vol. 30, No. 1, 2007, pp. 53-66. doi:10.1080/01904160601054973
A. K. Bhardwaj, I. Shainberg, D. Goldstein, D. N. Warrington, G. C. Levy, “Water Retention and Hydraulic Conductivity of Cross-Linked Polyacrylamides in Sandy Soils,” Soil Science Society of America, Vol. 71, No. 2, 2007, pp. 406-412. doi:10.2136/sssaj2006.0138
J. M. Anderson and J. S. I. Ingram, “Tropical Soil Biology and Fertility: A Hand-Book of Methods,” CAB International, Wallingford, 1993.
D. W. Nelson and L. E. Sommers, “Total Carbon, Organic C and Organic Matter,” In: A. L. Page, et al., Eds., Methods of Soil Analysis, Part 2, Agronomy, 2nd Edition, ASA, Madison, 1982, pp. 539-579.
J. M. Bremner, “Total N,” In: C. A. Black, et al., Eds., Methods of Soil Analysis, Part 2 Agronomy, ASA, Madison, 1965, pp. 1149-1178.
R. H. Bray and L. K. Kurtz, “Determination of Total Organic and Available Forms of Phosphorus in Soils,” Soil Science, Vol. 59, No. 1, 1945, pp. 39-45. doi:10.1097/00010694-194501000-00006
J. R. Okalebo, K. W. Gathua and P. L. Woomer, “Laboratory Methods of Soil and Plant Analysis Manual,” TSBF-CIAT and SACRED Africa, Nairobi, 2000.
G. Vogel Willis, “A Guide for Revegetating Coal Mine Soils in the Eastern United States,” Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1981, 190 p.
K. F. Wenger, “Forestry Hand Book,” John Wiley & Sons Inc., Hoboken, 1984.
D. C. Bowman, R. Y. Evans and J. L. Paul, “Fertilizer salts Reduce Hydration of Polyacrylamide Gels and affect Physical Properties of Gel-Amended Container Media,” Journal of American Society of Horticultural Science, Vol. 115, No. 3, 1990, pp. 382-386.
D. L. Bouranis, A. G. Theodoropoulus and J. B. Drossopoulus, “Designing Synthetic Polymers as Soil Conditioners,” Communications in Soil Science and Plant Analysis, Vol. 26, No. 9-10, 1995, pp. 1455-1480. doi:10.1080/00103629509369384
Z.-B. Luo, K. Li, X. Jiang and A. Polle, “Ectomycorrhizal fungus (Paxillus involutus) and Hydrogels Affect Performance of Populus euphratica Exposed to Drought Stress,” Annals of Forest Science, Vol. 66, No. 1, 2009, p. 106. doi:10.1051/forest:2008073
Y. Shi, J. Li., J. Shao, S. Deng, R. Wang, N. Li, J. Sun, H. Zhang, H. Zhu, Y. Zhang, X. Zheng, D. Zhou, A. Hüttermann and S. Chen, “Effects of Stockosorb and Luquasorb Polymers on Salt and Drought Tolerance of Populus popularis,” Scientia Horticulturae, Vol. 124, 2010, pp. 268-273.
J. Abedi-Koupai and J. Asadkazemi, “Effects of a Hydrophilic Polymer on the Field Performance of an Ornamental Plant (Cupressus arizonica) under Reduced Irrigation Regimes,” Iranian Polymer Journal, Vol. 15, No. 9, 2006, pp. 715-725. doi:10.1016/j.scienta.2009.12.031
J. L. Moya, F. R. Tadeo, A. Gómez-Cadenas, E. Primo-Millo and M. Talón, “Transmissible salt Tolerance Traits Identified through Reciprocal Grafts between Sensitive Carrizo and Tolerant Cleopatra Citrus Genotypes,” Journal of Plant Physiology, Vol. 159, No. 9, 2002, pp. 991-998. doi:10.1078/0176-1617-00728
M. Ahmad and H. Verplancke, “Germination and Biomass Production as Affected by Salinity in Hydrogel Treated Sandy Soil,” Pakistan Journal of Forestry, Vol. 44, No. 2, 1994, 53-61.
P. J. Kramer and J. S. Boyer, “Water Relations of Plants and Soils,” Academic Press, San Diego, 1995.
B. Duan, Y. Lu, C. Yin, O. Junttila and C. Li, “Physiological Responses to Drought and Shade in Two Contrasting Picea asperata Populations,” Physiologia Plantarum, Vol. 124, No. 4, 2005, pp. 476-484. doi:10.1111/j.1399-3054.2005.00535.x
R. Van-den-Boogaard, D. Alewijnse, E. J. Veneklaas and H. Lambers, “Growth and Water-Use Efficiency of 10 Triticum aestivum Cultivars at Different Water Availability in Relation to Allocation of Biomass,” Plant, Cell and Environment, Vol. 20, No. 2, 1997, pp. 200-210. doi:10.1046/j.1365-3040.1997.d01-60.x