Growth and nutrients content of Atriplex canescens across a soil electric conductivity gradient

Miguel Mellado, José E. García, Ulices Macías-Cruz, Leonel Avedaño-Reyes, José R. Arévalo


Atriplex canescens canopy cover, biomass production, and nutrient content were evaluated after four years of livestock grazing exclusion and mechanical shrub removal, except A. canescensin an arid rangeland with a slightly saline soil and with a long history of heavy livestock grazing in the southern Chihuahuan Desert, Mexico (24° N). Twenty 3 × 3 m paddocks were established in terrains with three levels of electric conductivity (EC): <1.4 dS/m (n=7), 1.4–1.6 dS/m (n=7) and >1.6 dS/m. Atriplex canescens canopy cover was higher (49.5%; p<0.01) on paddocks with soil EC >1.6 dS/m than paddocks with soil EC <1.4 and 1.4–1.6 dS/m (32.1 and 22.9%, respectively). Above-ground biomass did not differ between paddocks with soils with EC of <1.4 and 1.4–1.6 dS/m (1309 ± 535 and 1372 ± 180 kg DM/ha), but biomass increased 2.7 times (p<0.01) when soil EC was greater than 1.6 dS/m. The soil EC had no effect on the levels of crude protein (range 13.6 to 14.3%), neutral detergent fiber (range 56.5 to 57.7%) and ash (range 14.5 to 16.4%). In vitro dry matter digestibility (IVDMD) of the foliage of A. canescens was not affected by of soil EC level (range 60.4 to 62.2%). It was concluded that in an arid rangeland with slight saline soil, the increase in salinity favors canopy cover and biomass production of A. canescens without altering nutrient content and IVDMD of this fodder shrub.


aerial cover; biomass production; nutrient content; rangeland; soil salinity

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Abu-Zanat M, Al-Hassanat F, Alawi M, Ruyle G, 2003. Mineral assessment in Atriplex halimus L and Atriplex nummularia L in the arid region of Jordan. Afr J Rang For Sci 20: 247-251.

Aganga AA, Mthetho JK, Tshwenyane S, 2003. Atriplex nummularia (old man saltbush): a potential forage crop for arid regions of Botswana. Pak J Nut 2: 72-75.

AOAC, 1997. Official Methods of Analysis, 16th ed. Association of Official Analytical Chemists, Washington, DC, USA.

Askar AR, Nassar MS, Badawy HS, Eid EY, Guada JA, Farid MFA, 2016. Recovered energy and efficiency of digestion in sheep and goats fed Atriplex nummularia compared to alfalfa hay. Livest Sci 194: 1-6.

Ayala F, O’Leary JW, 1995. Growth and physiology of Salicornia bigelovii Torr at suboptimal salinity. Int J Plant Sci 156: 197-205.

Belkheiri O, Mulas M, 2013. The effects of salt stress on growth, water relations and ion accumulation in two halophyte Atriplex species. Environ Exp Bot 86: 17-28.

Ben Salem H, Nefzaoui A, Ben Salem L, 2004. Spineless cactus (Opuntia ficus indica f. inermis) and oldman saltbush (Atriplex nummularia L.) as alternative supplements for growing Barbarine lambs given straw-based diets. Small Rumin Res 51: 65-73.

Benzarti M, Rejeb KB, Messedi D, Mna AB, Hessini K, Ksontini M, Abdelly C., Debez A, 2014. Effect of high salinity on Atriplex portulacoides: Growth, leaf water relations and solute accumulation in relation with osmotic adjustment. S Afr J Bot 95: 70-77.

Bouchenak F, Henri P, Benrebiha FZ, Rey P, 2012. Differential responses to salinity of two Atriplex halimus populations in relation to organic solutes and antioxidant systems involving thiol reductases. J Plant Physiol 169: 1445-1453.

Bray RH, Kurtz LT, 1945. Determination of total, organic, and available forms of phosphorus in soils. Soil Sci 59: 39-45.

de Souza ER, dos Santos-Freire MBG, da Cunha KPV, do Nascimento CWA, Ruiz HA, Teixeira-Lins CM, 2012. Biomass, anatomical changes and osmotic potential in Atriplex nummularia Lindl. cultivated in sodic saline soil under water stress. Environ Exp Bot 82: 20-27.

de Souza ER, Freire MB, de Melo DV, Montenegro AA de A, 2014. Management of Atriplex nummularia Lindl. in a salt affected soil in a semi-arid region of Brazil. Int J Phytorem 16: 73-85.

El Shaer HM, 2010. Halophytes and salt-tolerant plants as potential forage for ruminants in the Near East region. Small Rumin Res 91: 3-12.

Flowers TJ, Colmer TD, 2008. Salinity tolerance in halophytes. New Phytolog 179: 945-963.

Gomez-Silveira JA, Marinho-Araújo SA, Santos-Lima JPM, Almeida-Viégas R, 2009. Roots and leaves display contrasting osmotic adjustment mechanisms in response to NaCl-salinity in Atriplex nummularia. Environ Exp Bot 66: 1-8.

Hussin S, Geissler N, Koyro HW, 2013. Effect of NaCl salinity on Atriplex nummularia (L.) with special emphasis on carbon and nitrogen metabolism. Acta Physiol Plant 35: 1025-1038.

John, MK, 1970.Colorimetric determination of phosphorus in soil and plant materials with ascorbic acid. Soil Sci 109: 214-220.

Khan MA, Ungar IA, Showalters AM, 2000. Effects of salinity on growth, water relations and ion accumulation of the subtropical perennial halophyte, Atriplex griffithii var. stocksii. Annals of Bot 85: 225-232.

Koyro HW, 2006. Effect of salinity on growth, photosynthesis, water relations and solute composition of the potential cash crop halophyte Plantago coronopus L. Environ Exp Bot 56: 136-146.

Koyro HW, Hussain T, Huchzermeyer B, Khan MA, 2013. Photosynthetic and growth responses of a perennial halophytic grass Panicum turgidum to increasing NaCl concentrations. Environ Exp Bot 91: 22-29.

Masters DG, Rintoul AJ, Dynes RA, Pearce KL, Norman HC, 2005. Feed intake and production in sheep fed diets high in sodium and potassium. Aust J Agr Res 56: 427-434.

Mellado M, Rodríguez A, Lozano EA, Dueñez J, Aguilar CN, Arévalo JR, 2012. The food habits of goats on rangelands with different amounts of fourwing saltbush (Atriplex canescens) cover. J Arid Environ 84: 91-96.

Meneses R, Varela G, Flores H, 2012. Evaluating the use of Atriplex nummularia hay on feed intake, growth, and carcass characteristics of creole kids. Chilean J Agr Res 72: 74-79.

Norman HC, Freind C, Masters DG, Rintoul AJ, Dynes RA, Williams IH, 2004. Variation within and between two saltbush species in plant composition and subsequent selection by sheep. Aust J Agr Res 55: 999-1007.

Norman HC, Wilmot MG, Thomas DT, Barrett-Lennard EG, Masters DG, 2010. Sheep production, plant growth and nutritive value of a saltbush-based pasture system subject to rotational grazing or set stocking. Small Rumin Res 91: 103-109.

Otal J, Orengo J, Quiles A, Hevia ML, Fuentes F, 2010. Characterization of edible biomass of Atriplex halimus L. and its effect on feed and water intakes, and on blood mineral profile in non-pregnant Manchega-breed sheep. Small Rumin Res 91: 208-214.

Pan YQ, Guo H, Wang SM, Zhao B, Zhang JL, Ma Q, Yin HJ, Bao AK, 2016. The photosynthesis, Na+/K+ homeostasis and osmotic adjustment of Atriplex canescens in response to salinity. Front Plant Sci 7: 848.

Panta S, Flowers T, Lane P, Doyle R, Haros G, Shabala S, 2014. Halophyte agriculture: success stories. Environ Exp Bot 107: 71-83.

Pearce KL, Norman HC, Hopkins DL, 2010. The role of saltbush-based pasture systems for the production of high quality sheep and goat meat. Small Rumin Res 91: 29-38.

Pinos-Rodríguez JM, Aguirre-Rivera JR, Mellado M, García-López JC, Álvarez-Fuentes G, Méndez-Villazana JC, 2007. Chemical and digestibility characteristics of some woody species browsed by goats in central Mexico. J Appl Anim Res 32: 149-153.

Poorter H, Fiorani F, Pieruschka R, Wojciechowski T, van der Putten WH, Kleyer M, Schurr U, Postma J, 2016. Pampered inside, pestered outside? Differences and similarities between plants growing in controlled conditions and in the field. New Phytol 212: 838-855.

Ramos J, Lopez MJ, Benlloch M, 2004. Effect of NaCl and KCl salts on the growth and solute accumulation of the halophyte Atriplex nummularia. Plant Soil 259: 163-168.

Rani S, Bishnoi S, Angrish R, Goval SC, 2013. Atriplex species (Chenopodiaceae): A halophytic species for restoration and rehabilitation of saline degraded lands. Ann Biol 29: 237-240.

Redondo-Gómez S, Wharmby C, Castillo JM, Mateos-Naranjo E, Luque CJ, de Cires A, Luque T, Davy AJ, Figueroa ME, 2006. Growth and photosynthetic responses to salinity in an extreme halophyte, Sarcocornia fruticosa. Physiol Plant 128: 116-124.

Redondo-Gómez S, Mateos-Naranjo E, Davy AJ, Fernández-Muñoz F, Castellanos EM, Luque T, Figueroa ME, 2007. Growth and photosynthetic responses to salinity of the salt-marsh shrub Atriplex portulacoides. Ann Biol 100: 555-563.

Shabala L, Mackay A, Tian Y, Jacobsen SE, Zhou D, Shabala S, 2012. Oxidative stress protection and stomatal patterning as components of salinity tolerance mechanism in quinoa (Chenopodium quinoa). Physiol Plant 146: 26-38.

Suttle NF, 2010. Mineral Nutrition of Livestock. Wallingford, UK: CABI.

Tsutsumi K, Yamada N, Cha-um S, Tanaka Y, Takabe T, 2015. Differential accumulation of glycinebetaine and choline monooxygenase in bladder hairs and lamina leaves of Atriplex gmelini under high salinity. J Plant Physiol 176: 101-107.

van der Baan A, van Niekerk WA, Rethman NFG, Coertze RJ, 2004. The determination of digestibility of Atriplex nummularia cv. De Kock (Oldman's Saltbush) using different in vitro techniques. S Afr J Bot 34: 95-97.

Van Soest PJ, Robertson JB, Lewis BA, 1991. Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition. J Dairy Sci 74: 3583-3597.

Ventura Y, Eshel A, Pasternak D, Sagi M, 2015. The development of halophyte based agriculture: past and present. Ann Bot 115: 529-540.

DOI: 10.5424/sjar/2018162-12376