Effect of foliar application of NAA, KNO3 and Fe on quantity and quality of peach fruit (Prunus Persica L.)‎ CV. early coronet

الملخص EN

The experiment was carried out at Seiujh - Duhok Governorate, Kurdistan Region, Iraq, during 2008.

4-years old peach trees were sprayed till run off with two concentrations of NAA (0 and 5ppm), three concentrations of KNO3 (0, 0.1 and 0.2 %), and three concentrations of Fe (0, 30 and 60ppm) one month after fruit set, at two times i.e, 24/April/2008 and 25/May/2008.

The aim was to study the influence of these treatments on quantity and fruit quality.

Raising the levels of NAA to 5ppm, KNO3 to 0.2 % and Fe to 60 ppm led to a significant increase in yield per tree, fresh weight, pulp weight, size, carbohydrate contains,TSS and juice percentage of fruit while decrease fruit acidity.

The interaction between higher levels of NAA, KNO3 and Fe led to a significant increase in all quantity and fruit quality characteristics mentioned above