THE EFFECT OF FOLIAR APPLICATION OF ACETYL SALICYLIC ACID (ASA) ON DIFFERENT GROWTH STAGES OF RADISH (Raphanus sativus L.)

The study was conducted at the Experimental Area of the College of Agriculture of Mindanao State University - General Santos City in order to evaluate the performance of acetyl salicylic acid on the different growth stages of radish. The study made use of a Randomized Complete Block Design (RCBD) with four (4) treatments replicated three (3) times. The treatments were as follows: T1- control (90-60-60 kg NPK/ha); T2- 1 week after planting (45-30-30 kg NPK/ha); T2-2 weeks after planting (45-30-30 kg NPK/ha); and T4-3 weeks after planting (45-30-30 kg NPK/ha). The results revealed no significant difference across treatments on plant height, number of leaves per plant, plant weight, root diamter, and root yield. It is a matter of adding half of the recommended rate of nitrogen in treatments with Salicylic acid in order to achieve yields comparable to the recommended rate of inorganic fertilizer treatment