Effect of some nutrient solutions and foliar nutrition on amino acids content and some growth parameters of potato (Solanum tuberosum l. )‎ under sand culture conditions

الملخص EN

This study was carried out in the Greenhouse at Al-Tuwaitha Experimental Station (20Km Southeast of Baghdad), Agricultural Research Directorate.

The experiment was laid out in Completely Randomized Design (CRD) with three replicates for each experimental unit.

The results showed superiority of fertilizer in S1S2 (nutrient solution+ megafol) treatment was significantly increased tuber content of amino acids including Glutamine, Asparagine, Alanine and Arginine (1.748, 0.689, 0.793 and 0.895 mg.100g-1), respectively in comparison with the control treatment S0 which gave 0.447, 0.367, 0.320 and 0.371 mg.

100 gm-1 respectively.

As well as, significantly increase rates of length, diameter, fresh and dry weight reached 32.89 cm, 0.193 cm 19.54 gm and 8.57 gm) of the root system, respectively in comparison with the control treatment S0.

This study shows the possibility of using nutrient solutions with megafol in sand culture to increase amino acids in tuber of potato, as well as to accelerate root growth which may increases their nutritional value.