Response of local orange saplings (Citrus sinensis L.) tofoliar spray with G.GANA and Bio health

Abstract

Lath trail was laid out at Department of Horticulture and Landscape, College of Agriculture,University of Baghdad, Abu-Ghraib during growth season of 2017 to investigate theeffect of spray the sapling of orange with two organic fertilizers (G.GANA and Bio health)on some growth traits and chemical content of orange saplings. Thus, 81 saplings were chosenthose their age was two years. They were homogenous as possible as it could in vegetativegrowth grafted on sour orange. Factorial experiment was applied (3×3) with three replicates(sapling) for each block. First factor was application of G.GANA with three levels of G0(0.00 g.L-1), G1 (0.75 g.L-1) and G2 (1.50 g.L-1). Second factor included Bio health with threeconcentrations of B0 (0 g.L-1), B1 (2 g.L-1) and B2 (3 g.L-1). Results revealed that G.GANAsignificantly superior in growth traits especially as they were sprayed with 1.50 g.L-1 wherethey achieved the highest of plant height increment of average of a new branches length 37.49cm, branches dry matter ratio of 69.57% , chlorophyll content of 12.25 mg.g-1 and branchescarbohydrates percentage of 11.02%, respectively. Bio health treatments showed significantlysuperior in growth traits of local orange saplings especially as they were sprayed with 3g.L-1which gave the best values of average of a new branches length 35.50cm, branches dry matterratio 71.25% , chlorophyll content of 12.11 mg.g-1 and 11.12% carbohydrates percentage, respectively.The interaction between the two factors reached a significant level for the all studiedtraits. The highest effect in the most traits was for the interaction treatment G2B2 wherethe average of a new branches length 38.76cm, branches dry matter ratio 75.25%, chlorophyllcontent of 12.80 mg.g-1 and 12.63% carbohydrates percentage, respectively, while the lowestvalues were shown at the control treatment G0B0