Impact of Foliar spray with Antioxidant and Seaweed Extract "Kelpak" on some Growth Characteristics and Mineral Content of Citrus reticulate Transplants cv. Clementine.

Abstract

A factorial experiment was conducted within a Complete Randomized Block Design in the lath house of Horticulture Department, College of Agriculture, University of Baghdad from September 2015 to September 2016 to investigate the effect of foliar spray with antioxidant (Ascorbic acid) and seaweed extract "kelpak'' on some growth traits of Citrus reticulate cv. clementine. The experiment included Four levels of ascorbic acid 0, 500, 1000 and 1500 mg L-1, and Three levels of seaweed extract''kelpak" 0, 2.5 and 5 ml L-1. Results showed that foliar spray ascorbic acid with 1000 mg L-1 and seaweed extract with 5 ml L- 5and interaction between them had a significant effect on all growth characteristics represented (average increase in leaves number, leaves area, vegetative dry weight, root dry weight and