ISHS Acta Horticulturae 455: V International Mango Symposium
MANGO MODEL: GROWTH AND DEVELOPMENT OF "SENSATION" MANGO TREES |
| Authors: | S.J. Davie, P.J.C. Stassen |
| Keywords: | yield potential, phenology, high density, manipulation |
| Abstract:
The development and yield potential of a crop is mainly a measure of one or other form of growth. Growth in length, thickness, stem circumference or mass are usually determined. Similarly the storage capacity for assimilates and nutrients are determined by the ratio of permanent structures to new growth. The purpose of this study was therefore to correlate growth and development of "Sensation" mango trees over a number of years and for different parts of the tree with fruit yield. In order to quantify all the factors which contribute to the tree's production capacity a study was launched where "Sensation" mango trees varying in age from one to 18 years old were excavated from orchards in the Nelspruit area at various times of the year over a period of three years. Tree measurements were recorded and the trees separated into different parts, tissues and organs such as leaves, trunk bark, trunk wood, side roots, tap roots, etc. These portions were weighed and in the case of the leaves they were counted and the leaf area was determined. The mass and size of the different aged trees, and in the smaller trees, the seasonal development of different tissues, is graphically illustrated. This study is part of the mango model development work which the ITSC initiated in 1993. | |
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