The Effectiveness Test Of Extracts Of Betle Leaf (Piper betle L.), Kirinyuh (Chromoloena odorata L.) and Tembelekan (Lantana camara L.) Against The Population Of Root Knot Nematodes (Meloidogyne spp.) And Plant Growth of Chili (Capsicum Annuum L.).

TESIS

Abstract

By : Magna Dwipayana

Email : magnadwipayana@yahoo.com

Faculties : Fakultas Pertanian

Department : S1 Agroekoteknologi

ABSTRACT Magna Dwipayana. Nim 1105105018. The Effectiveness Test Of Extracts Of Betle Leaf (Piper betle L.), Kirinyuh (Chromoloena odorata L.) and Tembelekan (Lantana camara L.) Against The Population Of Root Knot Nematodes (Meloidogyne spp.) And Plant Growth of Chili (Capsicum Annuum L.). Supervised by : Prof. Dr. Ir. I Nyoman Wijaya, MS. and Prof. Dr. Dra. Made Sritamin,M.S. Meloidogyne spp. was one of the parasitic nematode pests on crops of chili. The host range of this nematodes are very diverse, more than 2000 plants species and most are cultivation plants. Meloidogyne spp. was widespread in tropical regions and subtropik area. This nematode plays an important role in inflicting damage on the plant root crops and horticulture. Attacks of Meloidogyne spp. at the root can lower the production of the crops by 15 – 60 percent, even can reach 70 percent when the disease attacks vulnerable plants . Experiments showed that with about 500 – 800 larvae of Meloidogyne spp. per kilogram of soil can lower the production by 40 percent. This research was carried out in a way controlling root knot nematodes on chili uses extract of 3 species of plants in a variety of concentrations with the aim to obtain a concentration from the plants that are very effective at suppressing the development of root knot nematodes and can suppress the population in the soil and as well to surpress the attacks on plant roots. The types of plants that will be used in this research is kirinyuh (Chromolaena odorata), tembelekan (Lantana camara) and betle leaf (Piper betle) in different concentrations to know their ability to suppress populations of root knot nematodes of chili. The leaves of the plant contains useful materials to suppress plant pests including root knot nematodes. The result of this research shows that every leaf extracts that are used have the ability to suppress populations of Meloidogyne spp. From the three of leaf extract that have been used, the betle leaf extract effectively suppress the populations of nematodes on crops of chili for being able to put pressure against the population of the nematode in the soil or plant roots of chili. At the concentrations of 50 cc/polybag betle extracts are able to suppress the nematode population to 93% and on the concentration of 200cc/ polybag betle extracts was able to suppress populations of nematodes were 96.4%.

Keyword : Capsicum annuum L. , Chromoloena odorata L. , Lantana camara L. Meloidoyne spp dan Piper betle L.

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