Application of algae extract and boric acid for obtaining higher yield and better fruit quality of Anna apple
2006
Mansour, A. E. M. | Cimpoies, Gh. | Ahmed, F. F.
This study was conducted during 2004 and 2005 seasons on thirty of 12 years old Anna apple trees onto MM 106 rootstock. The texture of the soil is sandy. Trees were selected as uniform in vigour as possible and planted at 3.5X3.5 m apart. Dorset Golden and Ein-Shemir apple trees as pollinizers were additionally planted and distributed among Anna apple trees at the proportion of four rows of Anna apple trees per one row of pollinizers to secure open pollination with the assistance of two hives of honeybees per feddan. The findings obtained by analysing the experimental data established that single or combined application of Algae extract and boric acid were very effective in stimulating shoot length, leaf area, leaf total carbohydrates, leaf content of N, P, K, Mg and B, yield as well as physical and chemical characters rather than their non-application. The promotion was associated with increasing concentrations. Using boric acid was more favourable than using Algae extract in all the studied characters. Combined application gave the best results. As a conclusion, for obtaining an economical yield with better fruit quality of Anna apple trees, it is suggested to use combined treatment containing Algae extract at 0,5% plus boric acid at 0,05% three times.
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