MORPHOLOGICAL AND PHYSIOLOGICAL RESPONSE OF Monodora tenufolia BENTH. SEEDLINGS TO DIFFERENT FIELD ESPACEMENT.

Autor: OGUNWANDE, O. A., ADEGOKE, F. F., MAJOLAGBE, M. O., AJALA, O. O.
Předmět:
Zdroj: Ethiopian Journal of Environmental Studies & Management; 2023, Vol. 16 Issue 3, p276-286, 11p
Abstrakt: Planting espacement is a vital process which affects the quality of tree's growth and development but this information is lacking in Monodora tenufolia (a multipurpose species). This study aimed at obtaining the appropriate espacement for plantation of this species by subjecting seedlings to three (3) different espacement on field trial. Forty five (45) seedlings were selected and planted in 1m x 1m, 2m x 2m and 3m x 3m spacing. Randomized Complete Block Design was the experimental design used. Tending operations were carried out. Morphological parameters such as seedling height, diameter, number of leaves and number of branches and physiological parameters [Relative Growth Rate (RGR) and Absolute Growth Rate (AGR)] were assessed. Data collected was subjected to analysis of variance and descriptive statistics. Seedlings subjected to 1m x 1m spacing (77.01±4.7 cm) were significantly taller than in 2m x2m and 3m x3m spacing and had highest mean diameter at base (9.02±0.6), mean number of leaves (63.6±7.7) and number of branches with 6.89±0.9. Seedlings in 2m x 2m had highest values for both RGR (0.22 gg-1 wk-1) which was followed by 3m x3m (0.15 gg-1 wk-1) while least was observed in 1m x 1m (0.13 gg-1 wk-1) while highest mean value (1.55 g-1 wk-1) was observed in 3m x 3m while 2m x 2m had the least (1.22 g-1 wk-1). In conclusion, closer spacing (1m x1m) favoured the morphological parameters but wider spacing supported the physiological parameters (2m x2m and 3m x 3m). Therefore, wider spacing is recommended when seed production is the management objective but for ornamental, closer spacing can be considered with proper maintenance. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index