The Effect Micro Climate on The Flowering Phenology of Forest Clove Plants (Zyzygium obtusifolium L)

Abstract

Microclimate is one of the environmental factors that affect the growth, flowering and quality of clove flower production, including forest clove plants. This study aims to explain the effect of microclimate on the flowering phenology of forest clove plants and the length of the flowering phenoplast. The research lasted for 17 months, starting from January 2020 - May 2021. The field research was carried out on the island of Ambon, Maluku. The sampling location was determined using the purposive method. Measurement of temperature and relative humidity using a thermohydrometer, solar intensity was measured using a lux meter. Data analysis used principal component regression. The results showed that the length of the flowering phenology was 167.6 days. Microclimate parameters affect the flowering phenology of forest clove plants, R-square 0.93 and the correlation is very strong (R 0.95). Air temperature and intensity of sunlight, both between stands and below stands have a negative effect, meaning that with the influence of these three variables the flowering phenology takes place earlier. On the other hand, with the air humidity variable the effect is positive, meaning that the flowering phenology will be delayed. Air temperature is the variable that has the greatest influence on the flowering phenology of forest clove plants.