Short communication. Suitable growth stage to start irrigation with saline water to increase salt tolerance and decrease ion accumulation of Kochia scoparia (L. Schrad)
Abstract
Kochia scoparia L. Schard (common name: kochia) is a mesohalophyte, C4 plant. It has the potential of being an
important fodder crop in arid and semi arid environments. In order to evaluate the effect of saline irrigation water on
the seedling growth stage and to select the best growth stage to start using saline water, an experiment was conducted
with seven different saline water treatments (1.5, 7, 14, 21, 28, 35 and 42 dS m–1) at four growth stages [after emergence (T1), 5 cm (T2), 10 cm (T3), and 15 cm (T4) of plant height]. Results showed that shoot dry biomass increased slightly up to 7 dS m–1 and after that decreased with increasing salinity. Salt tolerance of kochia increased at the T3 and T4 growth stages. Sodium content of the plant was increased by using high saline water. The adverse effect of salinity on the Na content of the plant was lower at the 10-15 cm growth stage than at earlier growth stages. Potassium content was not greatly affected by salinity. As conclusion, kochia is sensitive to saline irrigation at the earliest stages of
growth, and the best plant height to start saline irrigation is between 10 and 15 cm.
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References
Al-Ahmadi M., Kafi M., 2007. Kochia (Kochia scoparia L.): to be or not to be. In: Crop and forage production using saline waters (Kafi M., Khan M.A., eds). Springer, India. pp. 119-162.
Breckle S.W., 2009. Is sustainable agriculture with seawater irrigation realistic? In: Salinity and water stress: improving crop efficiency (Ashraf M., Ozturk M., Athar H.R., eds). Springer. pp. 187-196. http://dx.doi.org/10.1007/978-1-4020-9065-3_19
Coxworth E.C.M., Salmon R.E., 1972. Kochia seed as a component of the diet of turkey poults: effects of different methods of saponin removal of inactivation. Can J Anim Sci 52, 721-729. http://dx.doi.org/10.4141/cjas72-085
Glenn E.P., Brown J.J., 1999. Salt Tolerance and crop potential of halophytes. Cr Rev Plant Sci 18, 227-255. http://dx.doi.org/10.1016/S0735-2689(99)00388-3
Kafi M., Asadi H., Ganjeali A., 2010. Possible utilization of high-salinity waters and application of low amounts of water for production of the halophyte Kochia scoparia as alternative fodder in saline agroecosystems. Agr Water Manage 97, 139-147. http://dx.doi.org/10.1016/j.agwat.2009.08.022
Kernan J., Sosulski K., Green D., Knipfel J.E., Coxwoth E.C., 1986. Kochia and other forages as energy crops. Saskatchwan Research Council, Saskatchwan, Canada. Report R-811-1-E-86.
Knipfel J.E., Kernan J.A., Coxworth E.C., Cohen R.D.H., 1989. The effect of stage of maturity on the nutritive value of kochia. Can J Animal Sci 69, 1111-1114. http://dx.doi.org/10.4141/cjas89-130
Levitt J., 1972. Responses of plants to environmental stresses. Academic Press, NY. 697 pp.
Maas E.V., 1990. Crop salt tolerance. In: Agricultural salinity assesment and managment (Tanji K.K., ed), ASCE, NY, USA. pp. 262-304.
Maas E.V., Poss J.A., 1989. Salt sensitivity of wheat at various growth stages. Irrigation Sci 10, 29-40.
Maas E.V., Poss J.A., Hoffman G.J., 1986. Salinity sensitivity of sorghum at three growth stages. Irrigation Sci 7, 1-11. http://dx.doi.org/10.1007/BF00255690
Munns R., Tester M., 2008. Mechanisms of salinity tolerance. Annu Rev Plant Biol 59, 651-681. http://dx.doi.org/10.1146/annurev.arplant.59.032607.092911 PMid:18444910
Ramadan T., 1998. Ecophysiology of salt excretion in the xero-halophyte Reaumuria hirtella. New Phytol 139, 273 281. http://dx.doi.org/10.1046/j.1469-8137.1998.00159.x
Salehi M., Kafi M., Kiani A.R., 2009. Growth analysis of Kochia (Kochia scoparia L. Schard) irrigated with saline water in summer cropping. Pak J Bot 41, 1861-1870.
Sastry E.V.D., Prakash V., 1993. Effect of salinity on variation in Na and K contents in wheat seedlings. Annu Arid Zone 32, 257-259.
Shabala S., Cuin T.A., 2008. Potassium transport and plant salt tolerance. Physiol Plant 133, 651-669. http://dx.doi.org/10.1111/j.1399-3054.2007.01008.x PMid:18724408
Steppuhn H., Van Genuchten M.T., Grieve C.M., 2005. Root-zone salinity. II. Indices for tolerance in agricultural crops. Crop Sci 45, 221-232. http://dx.doi.org/10.2135/cropsci2005.0221
Szczerb M.W., Britto D.T., Kronzucker H.J., 2009. K+ transport in plants: physiology and molecular biology. J Plant Physiol 166, 447-466. http://dx.doi.org/10.1016/j.jplph.2008.12.009 PMid:19217185
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