@misc{eprints82862,
           month = {September},
           title = {POTENSI METABOLIT SEKUNDER JAMUR Curvularia sp.
SEBAGAI HERBISIDA GULMA Asystasia gangetica DAN
UJI FITOTOKSISITASNYA PADA BIBIT KAKAO},
          author = { Maimunah 	 	Anis},
         address = {UNIVERSITAS LAMPUNG},
       publisher = {FAKULTAS PERTANIAN},
            year = {2024},
             url = {http://digilib.unila.ac.id/82862/},
        abstract = {Kakao (Theobroma cacao L.) termasuk komoditas perkebunan penting dalam
perekonomian Indonesia. Salah satu gulma di perkebunan kakao adalah
Asystasia.gangetica. Gulma A. gangetica memiliki kemampuan tumbuh dengan
cepat dan merupakan gulma invansif. Pengendalian gulma umumnya dilakukan
dengan aplikasi herbisida. Penggunaan herbisida dilaporkan menimbulkan berbagai
dampak negatif, seperti pencemaran lingkungan. Penggunaan herbisida metabolit
sekunder jamur dapat menjadi alternatif untuk mengurangi aplikasi herbsidia
sintetik. Penelitian ini bertujuan menguji metabolit sekunder jamur Curvularia sp.
sebagai herbisida untuk mengendalikan gulma A.gangetica dan mengetahui
fitotoksisitasnya pada tanaman kakao. Penelitian dilaksanakan dalam Rancangan
Acak Lengkap (RAL) dengan 4 perlakuan dan 4 ulangan. Perlakuan terdiri atas:
tanpa metabolit sekunder jamur Curvularia sp., metabolit sekunder jamur
Curvularia sp. dari gulma enceng gondok, metabolit sekunder jamur Curvularia sp.
dari gulma Digitaria, dan metabolit sekunder jamur Curvularia sp. dari gulma
Rottboellia. Uji pada gulma A. gangetica dilakukan dengan metode bioassay yaitu
uji pratumbuh, uji pelukaan, dan uji pascatumbuh. Uji fitotoksistas pada bibit kakao
dilakukan hanya pada pascatumbuh. Hasil penelitian menunjukkan bahwa,
metabolit sekunder jamur Curvularia sp. mampu menghambat perkecambahan
benih A. gangetica sebesar 100\%, metabolit sekunder jamur Curvularia sp. dari
gulma Digitaria mampu menimbulkan nekrotik pada daun gulma A. gangetica, dan
metabolit sekunder jamur Curvularia sp. dari gulma Digitaria dan gulma
Rottboellia cenderung menghambat pertumbuhan gulma A. gangetica. Uji
fitotoksisitas pada bibit kakao menunjukkan bahwa metabolit sekunder jamur
Curvularia sp. menimbulkan gejala fitotoksisitas dalam katergori ringan.
Kata kunci: Curvularia sp., Gulma A.gangetica, Kakao, Metabolit Sekunder
Kakao (Theobroma cacao L.) is an important plantation commodity in the
Indonesian economy. One of the weeds found in cocoa plantations is Asystasia
gangetica. A. gangetica has a rapid growth ability and is considered an invasive
weed. Weed control is generally achieved through herbicide application. The use
of herbicides has been reported to cause various negative effects, such as
environmental pollution. The use of secondary metabolites from fungi could be an
alternative to reduce the application of synthetic herbicides. This study aimed to
test the secondary metabolites of Curvularia sp. as herbicides to control the weed
A. gangetica and to assess their phytotoxicity on cocoa seedlings. The research was
conducted using a Completely Randomized Design (CRD) with four treatments and
four replications. The treatments consisted of the following: without secondary
metabolites of Curvularia sp., secondary metabolites of Curvularia sp. from water
hyacinth, secondary metabolites of Curvularia sp. from Digitaria, and secondary
metabolites of Curvularia sp. from Rottboellia. Testing of the weed A. gangetica
was performed using a bioassay method, which included pre-emergence, wound,
and post-emergence tests. Phytotoxicity tests on cocoa seedlings were conducted
only during the post-emergence phase. The results of the study showed that the
secondary metabolites of Curvularia sp. inhibited the germination of A. gangetica
seeds by 100\%. The secondary metabolites of Curvularia sp. from Digitaria caused
necrosis in the leaves of A. gangetica, and the secondary metabolites from Digitaria
and Rottboellia tended to inhibit the growth of A. gangetica. A phytotoxicity test on
cocoa seedlings indicated that the secondary metabolites of Curvularia sp. caused
mild symptoms of phytotoxicity.
Keywords: A.gangetica, Cocoa, Curvularia sp., Secondary Metabolites}
}