3 research outputs found
Growth and mineral nutrition of aquilaria malaccensis (Karas) in two habitats as affected by different cultural practices
Effects of cultural practice under different habitats, of well-managed monoculture plantation and growing wild under rubber trees, were studied in Aquilaria malaccensis (Karas) leaves. This study was carried out on Karas growing in these two habitats each from Lipis, Pahang and Sepang, Selangor areas in Malaysiaunder the control and induced treatments. The parameters studied include wet and dry weight of 50 matured leaves, iron and zinc elemental contents in leaf, iron and zinc uptakes from soil, and leaf and soil moisture contents. Iron and zinc were analysed in Karas leaves and soil by using Instrumental Neutron Activation Analysis (INAA) technique
Control of Oulema pectoralis beetle in Mokara chark Kuan Pink Orchid through spraying of Lantana camara weed 10% leaf water extract in the field
The percentage of damaged bloom was measured as the symptom of Oulema pectoralis pest infestation in the field. Spraying of 10% Lantana camara leaf water extract once a week (1X) in the field did not reduce Oulema pectoralis pest infestationbut increased the number of leaf, flower stalk, flower bud and flower bloom in Mokara chark Kuan Pink orchid. Spraying at twice a week (2X) reduced pest infestation in flower bloombut also reduced the number of flower stalk, flower bud and flower bloom in orchid. Length of flower stalk was not affected by twice a week spraying of extract but enhanced by once a week spraying. Orchid plant height was not affected by the frequency of extract spraying (1X or 2X per week) even though vegetative leaf number increased
