POTENTIAL OF NEPENTHES AS INSECT CAPTURED IN THE HOUSE AT KELURAHAN BUKIT TUNGGAL KALIMANTAN TENGAH

• Main Author: Sukaesih, Rita
• Format: Theses
• Language: Indonesia
• Subjects: Ilmu hayati ; Biologi
• Online Access: https://digilib.itb.ac.id/gdl/view/35983
• Institution: Institut Teknologi Bandung

Nepenthes often called as insectivorous plant is one of unique ornamental plants. The uniqueness not only form, size, pattern and the color of pitcher but ecologically as carnivorous plants. As ornamental plants (in pot, lawn, and vas flower) Nepenthes has high economy value so its cultivation developed. Local people collected from the forest and cultivated in their village. There was no accurate information of type of nepenthes that can be made as insect trap in the house. The aim of this research was to find out the type of Nepenthes that can be used as insect trap in the house. Survey on the species on natural and cultivation condition with its insect trapped was conducted in Katingan-Kalimantan Tengah. Experiment on the potential of insect trap in the house conducted in Kelurahan Bukit Tunggal Kalimantan Tengah, that were: 1) to find out the best place of putting Nepenthes in the house by putting Nepenthes at different places in the house (front and backyard, sitting room, family room, and kitchen, insect trapped in each location). Number of insect trapped on each pitcher were observed and counted. 2) Measuring digestion time of insect by Nepenthes. Morphological damages of insect trapped were observed every day. Protein content and enzyme activity analyzed by Lowry and Spektrofotometri methods. 3) Survival rate of insect larva in pitcher was observed everyday for 25 days. Data on location factor of Nepenthes collected was analyzed by factorial ANOVAs using significant level of 95 % (P<0, 05). Significant result was continued by Duncan’s test. The results showed that 6 types of Nepenthes found in natural forest and 7 types of Nepenthes found in cultivated site. Insect trapped collected from natural forest was diptera, hymenoptera, coleoptera, lepidoptera, blattaria and isoptera. Diptera and hymenoptera was the dominant. Four types of Nepenthes were used for experiment (N. ampullaria Jack, N. hookeriana Lindl, N. rafflesiana Jack and N. reindwardtiana Miq) in the house. The results indicates that N. reinwardtiana Miq caught the highest number of insect (1968 individuals) followed by N. rafflesiana Jack (281 individuals), N. hookeriana Lindl (225 individuals), and N. ampullaria Jack (52 individuals). Based on location, the highest number of insect trapped was in front of garden and in the night time captured more insects than on the day time. Number of insect trapped in pitcher has negative correlation with temperature and has positive correlation with humidity. N. reinwardtiana Miq digests insect faster than N. rafflesiana Jack, N. hookeriana Lindl, and N. ampullaria Jack. Protein content on the pitcher of N. reinwardtiana’s was the highest (0.1118 mgs/mL), followed by N. rafflesiana Jack (0.0811 mgs/mL), N. hookeriana Lindl (0.0110 mgs/mL), and N. ampullaria Jack (0.0548 mgs/mL). Spektrofotometri test could not detect enzyme activity. Based on the results, it can be concluded that N. reinwardtiana Miq can be used as an insect trap insect the in house.