EFFECT OF SPRAY OF G.GANA AND BIO HEALTH ON SOME GROWTH TRAITS OF LOCAL ORANGE CITRUS SINENSIS L. SAPLINGS

Abstract

Lathhouse trial was laid out at Department of Horticulture and Landscape, College of Agriculture, University of Baghdad, Abu-Ghraib during growth season of 2017 to investigate the effect of spray the sapling of orange with two organic fertilizers (G.GANA and Bio health) on some growth traits. Thus, 81 saplings were chosen those their age was two years. They were homogenous as possible as it could in vegetative growth grafted on sour orange. Factorial experiment was applied )6×6( with three replicates using three saplings for each experimental unit. 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 three concentrations of B0 (0 g.L-1), B1 (2 g.L-1) and B2 (3 g.L-1). Results revealed that G.GANA significantly superior in growth of local orange, especially as they were sprayed with 1.50 g.L-1 where they achieved the highest of plant height increment of 60.98cm, leaves no. increment of 79.8 leaves.sapling-1, leaf dry matter ratio of 61.81%, leaf area of 12.25 cm2 and sapling leaf area of 2395.56 cm2.sapling-1, respectively. Bio health was distinguished as the best with level of 3g.L-1 were gave the highest average of plant height increment of 59.39cm, steam diameter increment 4.9mm,leaves no. increment 78.4 leaves.sapling-1, leaf dry matter ratio 60.49%, leaf area 12.11 cm2 and sapling leaf area 2120.09 cm2.sapling-1. The two interactive combinations of G2B2 were the best on most traits.