EFFECT OF WATER-SUPERABSORBENT AND DROUGHT ON SEEDLING ESTABLISHMENT AND GROWTH IN SOME WARM SEASON PLANTS

Hassan Heidari, Ali Hosseini, Iraj Nosratti, Mahmood Khoramivafa

Abstract


Drought is one of the most important abiotic stresses in Iran’s agriculture and annually causes many damages to plant productions. This study was designed to determine effect of water-superabsorbent polymer and drought on seedling establishment and growth in some warm season plants (foxtail millet, dill and fenugreek). This experiment was conducted as a pot experiment at Campus of Agriculture and Natural Resources, Razi University. In the pot experiment, effect of water-superabsornbent polymer (0, 0.02, 0.04 and 0.08 grams per kilogram of soil) and drought (favorable and long-term irrigation) on warm season plants were investigated. Results showed that by increasing water-superabsorbent polymer application, seedling fresh weight, seedling dry weight, seedling height, emergence percentage and rate were increased. Drought reduced mentioned traits, but water-superabsorbent was able to reduce drought negative effects partially. Regarding results, for high emergence in foxtail millet, fenugreek and dill, application of 0.08 g of superabsorbent per kilogram of soil is usefull, especially under drought condition.


Keywords


dill, emergence percentage, fenugreek, foxtail millet, limited irrigation, water-superabsorbent



DOI: http://dx.doi.org/10.15835/agrisp.v103i3-4.12389