تاثیر کم آبیاری و روش آبیاری بر بهره وری آب، عملکرد و اجزای عملکرد گندم

In order to investigate the effect of deficit irrigation on quantitative and qualitative characteristics of wheat (Triticum asetivum L.) Morvareed cultivar, an experiment has been carried out with three main treatments including surface drip irrigation (TS), subsurface drip irrigation (TSS), and Furrow irrigation (F), as well as three submain treatments containing irrigation levels ۵۰% (I۱), ۷۵% (I۲), and ۱۰۰% (I۳) of the plant water requirement. It has taken place in the research farm of Ardebil Agricultural Research and Training Center in Moghan region during ۲۰۱۶-۲۰۱۷. The experiment is conducted as split plot based on randomized complete blocks design with three replications. Results show that the highest ۱۰۰۰-grain weight, harvest index and number of tillers per unit area are obtained with ۰.۰۵ kg, ۴۲% and ۴۴۸.۵۶ in I۳ and protein content with ۹.۵۶% in I۱, respectively. Also, the highest grain yield (۷۱۲۲.۳۳ kg ha-۱) is obtained from the TS with irrigation level of I۳ (no significant difference between I۳ and I۱). Meanwhile, the highest water productivity based on grain yield with ۱.۸۱ kg m-۳ is obtained from the treatment of F with I۱. The lowest grain yield with ۲۸۶۶.۶۷ kg ha-۱ and water productivity based on grain yield with ۱.۰۵ kg m-۳ belongs to F with irrigation levels of I۱ and I۳, respectively. Therefore, the surface drip (TS) with ۷۵% (I۲) and ۱۰۰% (I۳) of crop water requirement in conditions of water deficiency and no-water-deficiency, respectively, can be considered as optimum methods for wheat production in the Moghan region.

کلیدواژه ها:

آبیاری فارو ، آبیاری قطره ای ، شاخص برداشت ، پروتئین ، عملکرد دانه