Engelhardia, a genus of Juglandaceae (the walnut family), is endemic to tropical and subtropical Asia. The rich Cenozoic fossil records and distinctive morphological characters of the living plants have been used to explore the evolutionary history and geographic distribution of Juglandaceae....

There are seven species of Gyrinops and two species of Aquilaria (Thymelaeaceae), which are distributed in Eastern Indonesia at the east of the Wallace line. The anatomical character of the paradermal tissue, midrib and petiole were the important characteristics possessed by plants that can be used ...

These proceedings contain 137 papers focusing on agronomy and crop management, landscape plantation ecosystem, post-harvest and processing technology, and biodiversity and climate change. Topics include pest control, metagenomics, seed production, plant pathogens, plant breeding and genetics,...

One of the important factors in agricultural practices is the soil water availability for crops. This study was aimed to identify landslide deposits, assess the soil characteristics of each landslide zone, the effect of soil physical characteristics on the soil water availa bility for crops, and...

This study measured sap flow (SF) using Heat Ratio Method (HRM) to estimate the transpiration of two 14 years old oil palms for 29 days. Plant water potential (Ψ_frond) was also observed with a psychrometer. Environmental factors such as solar radiation (Qs), vapour pressure deficit (VPD), rainfall...

Cultivation of A. intrusa as cover crops in oil palm plantation plays a role in reducing water deficit as much as 90% on condition of higher water deficit occurred. The present study aimed to examine the roles of A. intrusa as land cover crop on water balance in oil palm plantation in Bireuen...

Cocoa-based agroforestry systems using langsat trees as shade is aimed to maximize the absorptions of solar energy, water, and nutrients, and increase income sources for farmers. Limited information about interspecific interactions between cocoa and langsat which is needed to improve the...

A new rainforest tree species of the myrtle family (Myrtaceae), Syzygium nusatenggaraense Sunarti & Y.W. Low is described here based on two collections from the Lesser Sunda Islands. This species is superficially similar to Syzygium arcanum P.S. Ashton, a Bornean endemic tree species, but...

Tropical rainforests comprise complex 3D structures and encompass heterogeneous site conditions; their transpiration contributes to climate regulation. The objectives of our study were to test the relationship between tree water use and crown metrics and to predict spatial variability of canopy...

Crop water use efficiency is critical for high yields in conditions of limited water supplies. This study aims at determining the effect of application bio-silicic acid (BioSilAc) on water use efficiency and nutrient availability for immature (2 years after planting) and mature (5 years after...