ENRICHMENT OF WHEAT BY ZINC FERTILIZER, MYCORRHIZA AND PREHARVEST DROUGHT STRESS

Authors : Hassan FARAHBAKHSH, Abbas KHASSE SIRJANI

Pages : 1-6

Doi:10.17557/tjfc.562627

View : 22 | Download : 11

Publication Date : 2019-06-14

Article Type : Research Paper

Abstract :A field experiment was conducted to investigate the effects of Zn and mycorrhiza on enrichment possibility of wheat insert ignore into journalissuearticles values(Triticum aestivum L.); under preharvest drought stress condition. The treatments included irrigation insert ignore into journalissuearticles values(A1: normal irrigation, A2: preharvest drought stress); as the main plots and the combinations of zinc insert ignore into journalissuearticles values(Zn1: 0 kg ha-1 and Zn2: 2 kg ha-1); and mycorrhiza insert ignore into journalissuearticles values(Mc1: 0 kg ha-1 and Mc2: 200 kg ha-1); as the subplots. The results indicated that grain phosphorus, grain phytic acid, phytic acid to zinc ratio, grain yield and grain filling period decreased under drought stress condition. A significant reduction was observed in grain phosphorus, grain phytic acid, phytic acid insert ignore into journalissuearticles values(Phy); to zinc ratio and grain filling rate with application of Zn insert ignore into journalissuearticles values(2 kg ha-1);. Grain zinc, protein, yield and final grain weight were higher at 200 kg ha-1 mycorrhiza than the control insert ignore into journalissuearticles values(0 kg ha-1);. Finally, considering drought crisis in some developing countries, the treatment of preharvest drought stress with Zn insert ignore into journalissuearticles values(2 kg ha-1); saved 450 m3ha-1 of water, produced the second highest grain yield, the highest protein content and the lowest phytic acid and Phy/Zn ratio. Therefore, this treatment can be recommended as a suitable and practical approach to improve wheat grain yield and quality.
Keywords : Foliar application, fortification, grain phosphorus, irrigation, micronutrient