Creation of an evaluation table to grasp the vitality of coffee trees and the state of fruits

Abstract

In this technical report, we create an evaluation table based on field surveys targeting coffee farms in Okinawa Prefecture to grasp the vitality of coffee trees and the fruit condition, which had not been clarified until now. Vitality is composed of tree vigor and tree shape. Five diagnostic items for tree vigor and three diagnostic items for tree shape are evaluated on a five-point scale, and the average value is shown. Also, in order to grasp the fruit condition, we focus on the fruiting state.The fruit bearing status is evaluated by 3 grades based on the presence or absence of fruit in each of the vertical, horizontal and planar parts, and the average value is shown.We believe that this evaluation table will enable us to easily and appropriately grasp the vitality of the coffee tree and the fruit condition. And it will be possible to lead to the appropriate management of coffee trees in the future.