Study of Kaolin Clay Solution on Quantity and Quality of Marian plum “Mayongchid” Cultivar Tulklao

Abstract

This research aimed to study the concentration and frequency of kaolin clay solution spraying on the yield and quality of 10-15-year-old Mayongchid (Marian plum) cultivar “Tulklao”. The study was conducted in Sak Lek District, Phichit Province,using a Randomized Complete Block Design with five treatments and four replications, one tree each. Treatment 1 sprayed kaolin clay solution at the rate of 30 gram/liter of water once a week. Treatment 2 sprayed kaolin clay solution at the rate of 30 gram/liter of water twice a week. Treatment 3 sprayed kaolin clay solution at the rate of 60 gram/liter of water once a week. Treatment 4 sprayed kaolin clay solution at the rate of 60 gram/liter of water twice a week, and treatment 5 sprayed plain water as a control. The study found no statistically significant differences (P>0.05) in the yield quality and quantity among all treatments. However, treatment 1 (30 g per 1 liter of water, once a week) tended to produce the highest yield compared to other treatments. Additionally, treatment 1 helped reduce damage caused by pests and diseases, with only 5% damage observed, compared to Treatment 5 (control), which showed 10% damage.