Effect of cutting length , IBA and hydrogen peroxide (H2O2) on growth and nutrients content for two olive cultivars
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2017, Volume 15, Issue 0, Pages 291-307
AbstractThe study was conducted in woody canopy at Kirkuk agriculture directorate / Ministry of Agriculture for the period from 1/11/2014 to 01/02/2015 to study cutting length and treatment with (IBA) and hydrogen peroxide effect in the success rate percentage of two olives varieties. Cuttings were taken from AinKawa-Erbil nursery, then the cutting were immersed in fungicide for 5 minutes then treated after being dried with different concentrations of (IBA) and hydrogen peroxide .Cutting were planted in growth cultivar .The study factors have included two cultivars of olive Bashiqa and Menzinelloa The second factor was cutting length including three lengths 5, 10 and 15) cm, and third factor they factor was treated with control, IBA 1000. mg L-1 and hydrogen peroxide concentration of 4% and 3000 mg L-1.
The experiment was conducted as factorial as randomized complete design, so the experiment included three factors with three replicates with eight cuttings in every replicate. The results was analyzed statistically according to the program Genstat and the averages compared at LSD level 5%. The results could be summarized as follows: The variety had high significant effect , Ba'shiqah gave the highest value of nitrogen content of the leaves and so for phosphorus which reached to 0.448% sequentially, while cultivar gave Menznelloa higher content of carbohydrates and the proportion of carbohydrates to nitrogen as reached to 15.28% and 16.58% sequentially.
Vegetative growth characters increased when using the cutting length 10 cm giving highest percentage of rooting , leave of chlorophyll content, dry weight and phosphorus content reached to 36.8%, 19.00 CCI, 0.148g, 0.439%, while cutting 5 cm had superiority in carbohydrates leave content , nitrogen , potassium and carbohydrates to nitrogen ratio. Rooting treatment showed 3000 mg L-1 IBA had superiority compared with other treatment in root percentage and content of the leaves of nitrogen and carbohydrates and C/N reached to 56.1%, 1.117%, 18.24%, 16.70% sequentially, either treatment by hydrogen peroxid had superiority in dry weight relative chlorophyll content. Showed overlapping triple significant differences so the treatment V1L2T1 gave highest rooting percentage, leave chlorophyll content. Treatment V1L1T2 gave highest phosphorus in leaves, as was 0.523%.
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