Abstract
The yield of oil palm is heavily influenced by various climatic conditions, including rainfall (RF), radiation (Qs), temperature, and humidity. To quantify the impact of these factors, a study was conducted on a 15-year-old palm located in an oil palm estate in Pangkalan Lima Puluh Kota, West Sumatra, Indonesia. The study used climate data from 2011-2019 and yield data from 2015 and 2019. To determine the contribution of RF, Qs, and VPD / vapour pressure deficit, which was estimated from temperature and humidity, a computer-intensive importance metric developed by Lindemann, Merenda, and Gold (LMG metric) was utilized. The results showed that RF, Qs, and VPD collectively accounted for 50.16% of yield fluctuations at the study site. Furthermore, the contribution of climate factors on yield followed the order of VPD > Qs > RF.
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