Reproductive Phenology and Dispersal Seeds of Plants within Sawan Public Park in Nakhon Sawan Province

Abstract

The main objective of research was to survey the reproductive phenology and dispersal seeds of plants in Sawan Public Park (Nong Somboon).  It covers the area of 316 rai. Therefore, the productiveness was studied from July 2021 – June 2022 by observing the plants while they were blooming and bearing fruits along the footpath of 3.3 kilometer in Sawan Public Park. The photos were taken. The records were made. The samples of the plants were collected and classified according to their types, genus and families. Also, plants habit and seed dispersal were studied and the trees with the 3 widest circumferences were recorded. It was found that there were 46 families 121 genus and 163 species of the plants. The most common species are trees (124 species), followed by shrubs (34 species) and herbaceous plants (5 species), respectively. Fabaceae is the most common family with 33 species (21 genus). It was followed by Rubiaceae with 9 species (7 genus) and Bignoniaceae with 8 species (6 genus), respectively. Seed dispersal was found to be carried by animals the most (99 species), followed by wind (58 species), splashing from pods and water (3 species), respectively. Most of the plants bloomed in summer (March – June). This season had the highest number of the blooming plants (86 species). It was followed by winter (November – February) [80 species] and rainy season (July – October) [55 species]. While the highest fruiting occurred during the summer (93 species), followed by the rainy season (78 species), and the least during the winter (65 species), respectively. The trees with the widest circumference was the Ficus benjamina L. (10.50, 10 and 9 m). The climate with an average rainfall of 4.5 mm, the highest and lowest temperatures was 34.2 ⁰C and 23.8 ⁰C, and the average temperature was 29 ⁰C.