تأثير الرش الورقي بالسماد العضوي Disper Alghum و منظم النمو KT-30 في المحتوى الكيميائي و الهرموني لأشجار التفاح صنف "Anna"

الملخص EN

A factorial experiment within randomized complete block design (RCBD) was coducted during 2016 to investigate the influence of foliar application organic fertilizer "disper alghum" and growth regulator kt-30 on chemical content , endogenous hormone of young appel trees CV.

"Anna".

The trees were sprayed with organic fertilizer "disper alghum" was three levels (D) : (0 , 3 , 5 g.L -1 ) , and growth regulator KT30 at four levels (K) : (0 , 5 , 10 , 20 mg.L -1 ) .

Foliar application of organic fertilizer D5 (5 g.L -1 ) gave significantly higher values of the total chlorophyll content in leaves 291.0 mg.100g-1 fresh weight , percentage of nitrogen content in leaves 2.25 % , percentage of phosphorus content in leaves 0.59 % , percentage of potassium content in leaves 1.953 % , percentage of carbohydrates in the branches 8.377 % , and the ratio of carbohydrate to nitrogen in branches (C/N Ratio) 7.877 % , cytokinins materials like hormone in leaves 717.6 ppm , the percentage of nitrogen content in the branches showed significantly higher values in organic fertilizer D3 (3 g.L -1) 1.19 % .

Foliar application of growth regulator K20 (20 mg.L) gave significantly higher values of the total chlorophyll content in leaves 327.4 mg.100g-1 fresh weight , percentage of phosphorus content in leaves 0.618 % , percentage of potassium content in leaves 2.039 % , percentage of carbohydrates in the branches 9.349 % , and the ratio of carbohydrate to nitrogen in branches (C/N Ratio) 7.818 % , cytokinins materials like hormone in leaves 847.5 ppm .

K10 (10 mg.L) significantly incrase percentage of nitrogen content in leaves 2.30 % .

There are non-significant value of percentage of nitrogen content in the branches all levels of growth regulator .

The interaction treatment D5K20 significant increased total chlorophyll content in leaves , percentage of phosphorus content in leaves , percentage of potassium content in leaves , percentage of carbohydrates inthe branches , cytokinins materials like hormone in leaves , other details are significant value in other interaction treatment non-control , there are non-significant value of percentage of nitrogen content in the branches in all interaction treatment of growth regulator