dc.contributor.advisor | Poerwanto, Roedhy | |
dc.contributor.advisor | Matra, Deden Derajat | |
dc.contributor.advisor | Sopandie, Didy | |
dc.contributor.author | Herwitarahman, Alifiya | |
dc.date.accessioned | 2022-02-04T14:18:51Z | |
dc.date.available | 2022-02-04T14:18:51Z | |
dc.date.issued | 2022 | |
dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/111019 | |
dc.description.abstract | Mangga Kasturi (Mangifera casturi Kosterm.) merupakan mangga endemik
Kalimantan Selatan dengan status langka di alamnya berdasarkan Lembaga
internasional untuk konservasi alam (IUCN). Kasturi memiliki masalah pada masa
pembibitan yang lama, karena sifat juvenilitas yang panjang. Penggunaan cahaya
buatan seperti lampu light emitting diode (LED) diketahui dapat memperpendek
juvenilitas karena dapat merubah fisiologi dan metabolit tanaman karena pengaruh
cahaya. Penelitian ini bertujuan untuk mengetahui perbedaan respon morfologi,
fisiologi dan perubahan metabolit sekunder dari bibit mangga Kasturi dengan
aplikasi lampu LED.
Penelitian dilaksanakan di Kebun Percobaan Leuwikopo IPB, dari Januari
sampai Juni 2021. Rancangan percobaan yang digunakan merupakan petak
tersarang dengan Penggunaan LED sebagai petak utama dan aksesi mangga Kasturi
sebagai perlakuan yang disarangkan pada perlakuan utama yaitu LED. Bahan
penelitian yang digunakan menggunakan tiga jenis spektrum LED tunggal merah,
putih, dan biru, dan tiga aksesi Kasturi: Mawar, Pelipisan, dan Kasturi. Penelitian
dilaksanakan dalam screen house paranet 90% dengan pemasangan lampu berjarak
45 cm dari tanaman, dengan kondisi terang selama 20 jam (04.30-00.30 WIB) dan
kondisi gelap selama 4 jam (00.30-04.30 WIB). Variabel penelitian yang diamati
adalah morfologi tanaman (tinggi, diameter batang, jumlah cabang, ukuran daun
dan jumlah daun), anatomi daun, pengukuran klorofil, parameter fotosintesis,
kandungan gula, dan profiling metabolit sekunder secara GC/MS dan LC/MS.
Hasil penelitian menunjukkan bahwa penggunaan LED merah, putih, biru
pada aksesi Mawar, Pelipisan, dan Kasturi, tidak memberikan pengaruh yang nyata
pada perubahan morfologi tanaman. Penggunaan LED biru mempercepat
pertumbuhan tunas pada aksesi Kasturi yang mulai memunculkan tunas tiga bulan
setelah perlakuan, sementara respon pertumbuhan tunas pada aplikasi LED merah
terjadi pada bulan ke 5 pada aksesi Kasturi. Respon anatomi daun dari aplikasi
penggunaan LED menunjukkan tidak adanya perbedaan nyata pada tebal daun,
kerapatan stomata, ukuran pori dan sel penjaga. Kandungan klorofil a memiliki
perbedaan yang nyata pada penyinaran dengan LED merah. Penyinaran LED biru
memberikan nilai absorbansi cahaya, konduktansi stomata, transpirasi, dan laju
fotosintesis yang lebih tinggi pada aksesi Kasturi. Lampu LED biru menghasilkan
kandungan glukosa lebih tinggi, sementara lampu LED putih menghasilkan nilai
fruktosa yang lebih tinggi dibandingkan lampu lain.
Terjadi perubahan penurunan dan peningkatan unsur hara makro dan mikro
pada setiap perlakuan LED dan aksesi. Profiling senyawa metabolit memberikan
respon senyawa metabolit menghasilkan 19 senyawa metabolit sekunder, dengan
golongan senyawa umum dari golongan sesquiterpenoid. Aksesi Pelipisanmemiliki
kandungan senyawa khusus dari golongan steroid dengan kelimpahan berbeda pada
tiap jenis penggunaan lampu LED. Pendugaan senyawa metabolit sekunder
menggunakan metode LC/MS mendapatkan hasil dugaan 13 senyawa yang terdiri
dari golongan alkaloid, fenolik, antioksidan dan flavonoid. Pendugaan senyawa
dalam penelitian ini belum dapat menemukan senyawa khusus yang menjadi
penanda peralihan dari fase juvenil ke fase generatif. Berdasarkan respon yang
diberikan oleh tanaman.
Lampu LED biru memiliki potensi digunakan sebagai cahaya yang dapat
mempercepat pertumbuhan tanaman dan memotong masa juvenil. Aksesi Kasturi
merupakan aksesi yang paling responsif pada penerimaan cahaya LED untuk
memperpendek masa juvenil. | id |
dc.description.abstract | Kasturi Mango (Mangifera casturi Kosterm) is an endemic mango of South
Kalimantan with rare status in nature based on International union for
conservation of nature (IUCN). Kasturi has problems with long breeding periods
due to its long juvenile nature. The use of artificial light, such as light-emitting
diode (LED) lamps, are known to shorten juveniles because it can change plant
physiology and metabolites due to the influence of light. This study aims to
determine the differences in response to morphology, physiology and changes in
secondary metabolites of Kasturi mango seedlings with the application of LED
lights.
The research was conducted at the Leuwikopo Experimental Garden, IPB,
from January to June 2021. The experimental design used was a nested plot design
with LEDs as the main plot and the accession of Kasturi mango as the nested
treatment. The research materials used were three types of single LED spectrum
red, white, and blue, and three accessions of Kasturi: Mawar, Pelipisan, and
Kasturi. The research was carried out in a 90% paranet screen house, installing
lights 45 cm from the plants, with bright conditions for 20 hours (04.30-00.30 WIB)
and dark conditions for 4 hours (00.30-04.30 WIB). The research variables
observed were plant morphology (height, stem diameter, number of branches, leaf
size and number of leaves), leaf anatomy, chlorophyll measurement, photosynthesis,
sugar content, and secondary metabolite profiling by GC/MS and LC/MS.
The results showed that the use of red, white, blue LEDs on accessions of
Mawar, Pelipisan, and Kasturi did not significantly affect plant morphology. The
use of blue LEDs accelerated shoot growth in Kasturi accessions which began to
sprout three months after treatment, while the response of shoot growth to red LED
applications occurred at the fifth month of Kasturi accessions. The response of leaf
anatomy from LED application showed no significant difference in leaf thickness,
stomata density, pore size and guard cells. The content of chlorophyll a has a
significant difference in irradiation with red LEDs. Blue LED irradiation gave
higher light absorption values, stomatal conductance, transpiration, and
photosynthesis rate in musk accessions. Blue LED lamps produce a higher glucose
content, while white LED lamps produce higher fructose values than other lamps.
There was a change in the decrease and increase in macro and
micronutrients in each LED treatment and accession. The profiling of metabolite
compounds responded to metabolite compounds resulting in 19 secondary
metabolites, with general compounds belonging to the sesquiterpenoid group. The
cladding accession contained unique compounds from the steroid group with
different abundances for each type of LED lamp use. Using the LC/MS method,
estimated secondary metabolites obtained results of 13 compounds consisting of
alkaloids, phenolics, antioxidants, and flavonoids. Estimation of compounds in this
study has not been able to find specific compounds of transition from the juvenile
phase to the generative phase. Based on the response given by the plant.
The Blue LED has the potential to be used as the light that can accelerate
plant growth and cut juveniles because blue LEDs produce a response to more
efficient at photosynthetic rate, stomatal conductance, and transpiration rate also
has the highest glucose content compared to other lamps. Blue LEDs also promote
the fastest and most frequent shoot growth compared to other LEDs. Kasturi
accessions were the most responsive to LED light reception to shorten the juvenile
period because Kasturi accessions had the highest shoot growth compared to other
accessions. | id |
dc.description.sponsorship | Lembaga Pengelola Dana Keuangan Republik Indonesia (LPDP RI) | id |
dc.language.iso | id | id |
dc.publisher | IPB (Bogor Agricultural University) | id |
dc.title | Respon Morfofisiologi dan Metabolit Sekunder pada Bibit Mangga Kasturi (Mangifera casturi Kosterm.) dengan Aplikasi Cahaya Buatan Light Emmiting Diode | id |
dc.title.alternative | Responses of Morphophisiology and Secondary Metabolite in Kasturi Mango (Mangifera casturi Kosterm.) Seedling to Light- Emmiting Diode-Artificial Light Application | id |
dc.type | Thesis | id |
dc.subject.keyword | fotosintesis, glukosa, klorofil a/b, metabolit sekunder, pucuk baru | id |
dc.subject.keyword | chlorophyll a/b, flushing, glucose, photosynthetic, secondary metabolite | id |