Oil palm root study using the mini-rhizotron technique

The mini-rhizotron technique was used to study oil palm root turnover and longevity. Preliminary data collected over a three-month observation period was not sufficient to determine oil palm root longevity since the total root length was not constant. Root length replacement was high in tertiary roots about 11% more than secondary roots. Root observation has […]

The role of leaf area index (LAI) in oil palm

The importance of leaf area index (LAI) in oil palm is highlighted. Factors such as the fractional light interception, conversion efficiency e, effects of age, climate, soil and fertilizer, and carbon balance are also discussed. LAI can be influenced by the number of fronds per palm, area per frond and planting density. Planting at optimal […]

Estimating maintenance respiration of oil palm

Maintenance respiration (MR) is normally the largest fraction of dark respiration in crop plants. MR of mature oil palm is difficult, if not impossible, to measure directly. However, it can be calculated from respiratory coefficients and standing crop biomass components. The derivation of the coefficients is described and examples are given of the MR of […]

A survey on cosmetic products marketed in Malaysia: microbiological aspect

Cosmetic products contain variable amounts of nutrients that support microbial growth. Most contaminants in cosmetic products include bacteria suchas Staphylococcus, Pseudomonas, Klebsiella, Achromobacter andAlcaligenes. Contaminated water is a likely source of organisms found in cosmetic products. Products such as shampoo, hand and body lotion, facial cleanser, shower bath and moisturizer were analysed. In this study, […]

Polymorphic behaviour of blends of palm oil and palm olein with sunflower oil and palm kernel olein as affected by blending and interestification

Palm oil (PO) and palm olein with an iodine value of 60 (POo-I.V.60), were blended with sunflower oil (SFO) and palm kernel olein (PKOo) according to the conventional three-component mixture design. The effects of blending and chemical and enzymatic interesterification on the polymorphic behaviour of the ternary blends of PO/SFO/PKOo and POo-I.V. 60/ SFO / […]

Ganoderma versus mycorrhiza

This Basal stem rot (BSR) disease, which has long been recognized as the most annihilating disease of field palms in Southeast Asia, still reigns as the number one killer of oil palms and serves a disastrous blow to palm oil production. With the identification of the causal agent, i.e. Ganoderma boninense, several control measures have […]