تاثیر محلول پاشی و مصرف خاکی روی بر وزن دانه و برخی صفات بیوشیمیایی گندم در شرایط شوری خاک

In order to study the effect of foliar and soil application of Zinc on grain weight and some biochemical traits of wheat (Triticum aestivum L.) under soil salinity, an experiment has been conducted as factorial based on randomized complete block design with three replications in research greenhouse of University of Mohaghegh Ardabili in ۲۰۱۸-۲۰۱۹. Experimental factors include soil salinity levels [control and salinity of ۳۰, ۶۰, and ۹۰ mM] and four methods of zinc application [no zinc as control, soil application zinc as ZnSO۴, foliar application nano zinc oxide, and combination of soil and foliar application of zinc]. Results show that both application of ZnSo۴ and foliar application nano Zn oxide under ۹۰ mM soil salinity condition increase the catalase and peroxidase enzymes activity, anthocyanin, proline, and soluble sugars content by ۲۰.۲۴%, ۱۷.۶۸%, ۱۳.۱۶%, ۳۲.۸۸%, and ۱۴.۰۸%, respectively, in comparison with no application of zinc under ۹۰ mM soil salinity condition. Also, both soil application of ZnSo۴ and foliar application of nano Zn oxide under non-salinity condition decrease hydrogen peroxide and malondialdehyde content in comparison with no application of Zinc under ۹۰ mM soil salinity. Both soil application ZnSo۴ and foliar application nano Zn oxide under non-salinity condition has had the highest grain weight (۱.۰۱۶ g per plant), compared to the application of this treatment combination at other salinity levels. It seems that both application of ZnSo۴ and nano Zn oxide can increase weight yield of wheat under salinity condition due to their ability in improving biochemical traits.

Keywords:

پرولین , قندهای محلول , کاتالاز , مالون دی آلدهید , نانواکسید روی