Studies on carbohydrate levels in leaves and stems of 5 mango clones.

Abstract

Carbohydrate levels in leaves and terminal stems of 5 mango (Mangifera indica L.) clones grown at Pak-Chong Agricultural Research Station, Nakornrajasima Province were investigated. The chemical analysis was conducted at the Horticullture Laboratory, Kasetsart University. Samples were taken in May, 1980 and January, 1981. Mango (Mangifera indica L.) clones used in this study were Nang Klangwan, Nam Docmai, Okrong Khiew, Raet and Keitt. It was shown in the samples taken in May, 1980 which was the time right after harvest that carbohydrate levels in eaves from these clones were not significantly different but those levels in the terminal stems varied significantly among the clones, the highest level was found in Raet and the lowest in Okrong-Khiew. Another sampling time was in January, 1981 which was the time before flowering, it was found that carbohydrate levels were found in the terminal stems. Raet had the highest-carbohydrate reserved in stem and Okrong Khiew had the lowest. In this study, mango (Mangifera indica L.) clones could be divided into two groups based on the carbohydrate levels in the terminal stem.