CD Tesis

Pengaruh Jenis Pelarut Terhadap Ekstrak Daun Ketapang (Terminalia Catappa L.) Dan Konsentrasi Aplikasi Dalam Pengendalian Gulma Sembung Rambat (Mikania Micrantha)

---

Sembung rambat (Mikania micrantha) is a broadleaf weed that is
commonly found on agricultural land. Weed control in agricultural land is
generally carried out using synthetic herbicides, the use of synthetic herbicides
has negative effects such as the death of natural enemies, polluting the
environment, decreasing soil organic matter levels and increasing weed
resistance.
Bioherbicide is one of the safe because the materials used come from
nature, thereby reducing environmental pollution. Ketapang is a plant that is
often found as a shade tree. Ketapang leaves contain secondary metabolites so
that their bioactive compounds can be used as bioherbicides. This study aims to
determine the effect of the type of solvent on ketapang leaf extract and application
concentration in controlling sembung rambat weeds.
This research was conducted at the Agricultural Product Technology
Laboratory and the Plant Ecophysiology Laboratory of the Faculty of Agriculture
and the Experimental Garden of the University of Riau. The research period was
3 months from August to October 2021. The study was conducted in two
experiments. The first experiment was to test the total levels of secondary
metabolites of ketapang leaves and test the color reaction of the flavonoid group
given different types of solvents. The second experiment was carried out in stages,
the first stage was the pre-growth test and the second stage was the post-growth
test. The design used was a Factorial Completely Randomized Design (CRD)
consisting of two factors. The first factor is various types of solvents, namely
distilled water, ethanol and methanol. The second factor was the concentration of
the extract application, namely 30%, 50%, 70% and repeated 3 times. Parameters
included in the pre-growth test were germination percentage, germination rate,
radicle length and plumule length. Parameters included in the post-growth test
were the percentage of weed death, weed height, number of leaves, phytotoxicity,
wet weight, chlorophyll content, and regrowth time. Observational data were
analyzed using analysis of variance (ANOVA). If f count is greater than f table, it
is continued with the BNJ test at 5% level.
The results of the first experiment showed that methanol solvent had the
highest total content of secondary metabolites compared to distilled water and
ethanol. In the second experiment, it was shown that the ketapang leaf extract
with methanol (50%) and ethanol (50%) solvents at an application concentration
of 30% was able to inhibit the germination of sembung rambat seeds in the pregrowth
test. Meanwhile, in the post-growth test, methanol solvent extract (50%)
was able to inhibit the growth of weeds on all observation parameters, namely the
percentage of weed death, weed height, number of leaves, phytotoxicity, wet
weight, chlorophyll content, and regrowth time.
Key words: Extract, bioherbicide, Terminalia catappa, Mikania micrantha,
pre-growing, post-growing

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

1910247095

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Ilmu Pertanian., 2022

Deskripsi Fisik

-

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

1910247095

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

ILMU PERTANIAN

Info Detail Spesifik

-

Pernyataan Tanggungjawab

FATAH

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar