TY - JOUR

T1 - Saline water irrigation of quinoa and chickpea

T2 - seedling rate, stomatal conductance and yield responses

AU - Hirich, A.

AU - Jelloul, A.

AU - Choukr-Allah, R.

AU - Jacobsen, Sven-Erik

N1 - Special Issue: Food Production in Dry Areas of the Mediterranean Region Guest Editor: Sven-Erik Jacobsen

PY - 2014

Y1 - 2014

N2 - A pot experiment was conducted in the south of Morocco to evaluate the response of chickpea and quinoa to different irrigation water salinity treatments (1, 4, 7 and 10 dS m-1 for chickpea and 1, 10, 20 and 30 dS m-1 for quinoa). Increasing salinity affected significantly (P < 0.05) seedling rate and height and caused delay and reduction in seed emergence, quinoa was shown to be more resistant than chickpea. Dry biomass, seed yield, harvest index and crop water productivity were affected significantly (P < 0.05) by salinity where increasing salinity level led to decrease in dry biomass, root volume and seed yield for both quinoa and chickpea while increasing salinity resulted in increase - in the case of quinoa - and decrease - in the case of chickpea - in harvest index and crop water productivity. Na+ and Na+/K+ ratio increased with increasing irrigation water salinity, while K+ content decreased - in the case of quinoa - and increased - in the case of chickpea - with increasing salinity. Through this study, it was demonstrated that the salinity threshold in which seedling starts to be affected by salinity was equal to 2 and 8 dS m-1 for chickpea and quinoa, respectively. Quinoa was shown to be more resistant to salinity of all investigated parameters.

AB - A pot experiment was conducted in the south of Morocco to evaluate the response of chickpea and quinoa to different irrigation water salinity treatments (1, 4, 7 and 10 dS m-1 for chickpea and 1, 10, 20 and 30 dS m-1 for quinoa). Increasing salinity affected significantly (P < 0.05) seedling rate and height and caused delay and reduction in seed emergence, quinoa was shown to be more resistant than chickpea. Dry biomass, seed yield, harvest index and crop water productivity were affected significantly (P < 0.05) by salinity where increasing salinity level led to decrease in dry biomass, root volume and seed yield for both quinoa and chickpea while increasing salinity resulted in increase - in the case of quinoa - and decrease - in the case of chickpea - in harvest index and crop water productivity. Na+ and Na+/K+ ratio increased with increasing irrigation water salinity, while K+ content decreased - in the case of quinoa - and increased - in the case of chickpea - with increasing salinity. Through this study, it was demonstrated that the salinity threshold in which seedling starts to be affected by salinity was equal to 2 and 8 dS m-1 for chickpea and quinoa, respectively. Quinoa was shown to be more resistant to salinity of all investigated parameters.

KW - Chenopodium quinoa

KW - Cicer arietinum

KW - Osmotic adjustment

KW - Yield

U2 - 10.1111/jac.12072

DO - 10.1111/jac.12072

M3 - Journal article

AN - SCOPUS:84906944466

VL - 200

SP - 378

EP - 389

JO - Journal of Agronomy and Crop Science

JF - Journal of Agronomy and Crop Science

SN - 0931-2250

IS - 5

ER -