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dc.contributor.advisorNapitupulu, J. A
dc.contributor.advisorNainggolan, Marline
dc.contributor.advisorSiregar, Luthfi Aziz M
dc.contributor.authorVinolina, Noverita Sprinse
dc.date.accessioned2021-09-07T07:05:44Z
dc.date.available2021-09-07T07:05:44Z
dc.date.issued2014
dc.identifier.urihttp://repositori.usu.ac.id/handle/123456789/42488
dc.description.abstractTHE INCREASE IN CENTELLOSIDE PRODUCTION OF PEGAGAN (Centella asiatica ) THROUGH THE APPLICATION OF PHOSPHORUS AND METHYL JASMONATE WITH DIFFERENT HARVEST TIME NOVERITA SPRINSE VINOLINA. The Increase in Centelloside Production of Pegagan (Centella asiatica ) Through Application of Phosphorus and Methyl Jasmonate with Different Harvest Time (Supervised by: J.A. NAPITUPULU, MARLINE NAINGGOLAN, LUTHFI AZIZ M. SIREGAR ). One of the wild plants widely used from nature is Centella asiatica. Chemical compounds found in pegagan and the benefits of bioactive content become fundamental need for the research to be conducted. Harvesting from nature without preservation may cause the cultivation of these plants to be gradually extinct. Profound study is needed to be able to find out the responses of pegagan to various treatments in order to increase the content of bioactive (centelloside) rather than growing naturally in the wild. Cultivation techniques which will be provided include the application of phosphorus that affects the synthesis of centelloside at four levels: 0, 18, 36, 54 kg P2O5/ha, methyl jasmonate consisting of three levels: 0, 100, 200 μM and age of harvest at 56 , 70 and 84 days after planting (DAP ), with 108 experimental plots, size of plot 1 m2 per plot. The objectives of study were 1) to obtain the right dose of phosphorus to get the best production of centelloside, 2) to find out the right concentration of the hormone methyl jasmonate to obtain the best production of centelloside in pegagan, 3) to find out the right harvest time to obtain the production of the best centelloside, 4) to find out the interaction of phosphorus dose and methyl jasmonate concentration on the production of centelloside content, 5) to find out the interaction of phosphorus dose and harvest time on the production and on centelloside content, 6) to find out the interaction of methyl jasmonate concentration and harvest time on production and on centelloside content, and 7) to find out the interaction of phosphorus dose, methyl jasmonate concentration and harvest time with centelloside production. The results of the research showed that phosphorus dosing increased the length of the petiole. The highest growth in the number of leaves, leaf area, number of primary shoots, and the number of secondary shoots of 12 WAP (week after plating), was found in the treatment of phosphorus at the level of 36 kg P2O5/ha. The highest asiaticoside content of leaf was found in the application of phosphorus of 54 kg P2O5/ha, while the highest asiatic acid content in leaves was found in application of phosphorus of 18 kg P2O5/ha. Phosphorus fertilization was 13.51 kg P205/ha, and the maximum production of asiatic acid in leaf was ± 244 g. The application of methyl jasmonate of 100 μM and 200 μM caused the decrease in phosphorus content of plant tissue. Harvest time affects asiatic acid content of leaves and roots madecassoside content. The highest madecassocide production, both in leaves and roots, was found at harvest time of 84 DAP. The effect of interaction of methyl jasmonate concentration and harvest time in production, the highest production of both wet weight of leaves petiole and roots tendrils was found in the combination without the application of methyl jasmonate and the harvest time of 84 days after planting. The highest asiatisoside content of the roots and tendrils was found in the combination of the application of methyl jasmonate 200 μM and the harvest time of 84 days after planting. Without the application of 200 μM jasmonate, asiaticoside content would increase from 70 days to 84 days after planting, whereas the application of 100 μM methyl jasmonate, the maximum of asiaticoside production in leaves was ± 67 mg at 70 DAP. The interaction effects of harvest time and phosphorus doses on madecassoside content, the highest madecassoside content of roots and shoots was found in the combination of harvest time of 84 days after planting and 54 kg P205/ha of phosphorus fertilization. Harvest time of 84 DAP with application of phosphorus at the level of 18, 36, and 54 kg P205/ha in which madecassoside content was higher than the harvest time of 56 or 70 DAP. The content of madecassoside in leaves was higher in 56 DAP in various phosphorus doses and would decrease from 56 to 70 days after planting and would increase again after 69 days after planting in phosphorus doses of 0, 18 and 36 kg P2O5 per ha. The highest interaction effect of methyl jasmonate concentration and of phosphorus dose was found in the production of components; namely, wet weight and dry weight per plot, which was found in the application of methyl jasmonate treatment of 100 μM and in 18 kg of phosphorus fertilization P205/ha at 401.743 g and 43.285 g respectively on wet weight of leaves and petiole, dry weight of roots and tendrils, and the wet weight of samples. Harvest time of 56 days after planting produced wet weight of leaves and petiole in the maximum of 88.614 g with application of methyl jasmonate of 99.75 μM. Harvest time of 70 days after planting, wet weight of leaves and petiole would increase by the application of methyl jasmonate of 200 μM, while in the harvest time of 84 days after planting, wet weight of leaves and petiole would decrease by the application of methyl jasmonate of 200 μM. The highest wet weight of leaves and petiole was found in methyl jasmonate treatment of 100 μM and in 18 kg P205/ha of phosphorus fertilization; 160.739 g. The highest dry weight of roots and shoots were found in the application of methyl jasmonate treatment of 100 μM and in 18 kg P205/ha of phosphorus fertilization. The highest production of madecassoside in leaves and root was found in the application of methyl jasmonate of 200 μM and in 54 kg P205/ha of phosphorus. Without phosphorus fertilization, production of madecassoside in root increased to the maximum production of ± 473 mg in the application of methyl jasmonate of 91.25 μM, whereas phosphorus fertilization of 18 kg P2O5 per ha would produce the maximum of asiatic acid in root of ± 61 mg in the application of methyl jasmonate of 108.25 μM. The interaction effects of phosphorus dose, methyl jasmonate concentration, and harvest time were not found in all growth parameters, in production, and in the content of centelloside. Cultivation action on pegagan is strongly influenced by the desired production of centelloside, whether in harvest time, in methyl jasmonate concentration, or in appropriate doses of phosphorus.en_US
dc.description.abstractSalah satu tanaman liar yang dimanfaatkan dari alam secara luas adalah Centella asiatica. Kandungan kimia yang terdapat pada pegagan dan manfaat dari kandungan bioaktif tersebut merupakan hal yang mendasar perlunya penelitian ini dilakukan. Pemanenan dari alam tanpa adanya pelestarian dengan membudidayakannya dapat menyebabkan tanaman ini lama kelamaan akan musnah. Kajian yang mendalam sangat diperlukan untuk dapat mengetahui seluk beluk respon tanaman pegagan terhadap berbagai perlakuan untuk dapat menigkatkan kandungan bioaktifnya (centellosida) daripada yang tumbuh secara alami di alam. Teknik budidaya yang akan diberikan antara lain pemberian fosfor yang mempengaruhi sintesis centellosida dengan 4 taraf yaitu 0, 18, 36, 54 kg P2O5 /ha, pemberian elisitor metil jasmonat yang terdiri atas 3 taraf yaitu 0, 100, 200 μM dan umur panen yang berbeda yaitu 56 , 70 dan 84 hari setelah tanam (HST), dengan 108 petak percobaan ukuran 1 m2. Penelitian ini bertujuan untuk: 1) memperoleh dosis fosfor yang tepat untuk memperoleh produksi centellosida pegagan yang terbaik, 2) mengetahui konsentrasi hormon metil jasmonat yang tepat untuk memperoleh produksi dan kandungan centellosida pegagan yang terbaik, 3) mengetahui umur panen yang tepat untuk memperoleh produksi dengan kandungan centellosida yang terbaik, 4) mengetahui interaksi dosis fosfor dan konsentrasi metil jasmonat terhadap produksi dengan kandungan centellosida, 5) mengetahui interaksi dosis fosfor dan umur panen terhadap produksi dan kandungan centellosida, 6) mengetahui interaksi konsentrasi metil jasmonat dan umur panen terhadap produksi dan kandungan centellosida, 7) mengetahui interaksi dosis fosfor, konsentrasi metil jasmonat dan umur panen terhadap produksi dengan kandungan centellosida. Hasil penelitian menunjukkan pemberian dosis fosfor meningkatkan panjang tangkai daun. Pertumbuhan jumlah daun, luas daun, jumlah sulur primer, jumlah sulur sekunder 12 MST, tertinggi terdapat pada perlakuan pemberian fosfor pada taraf 36 kg P2O5 /ha. Kandungan asiatikosida daun tertinggi terdapat pada pemberian fosfor 54 kg P2O5 /ha sedangkan kandungan asam asiatik daun tertinggi terdapat pada pemberian fosfor 18 kg P2O5 /ha. Pemupukan fosfor 13,51 P205 kg/ha, produksi asam asiatik daun maksimum yaitu ± 244 g. Pemberian metil jasmonat 100 μM dan 200 μM menyebabkan penurunan kadar fosfor jaringan tanaman. Umur panen mempengaruhi kandungan asam asiatik daun dan kandungan madekasosida akar. Produksi madekasosida baik pada daun maupun akar paling tinggi diperoleh pada umur panen 84 HST.Efek interaksi umur panen dan metil jasmonat terdapat pada produksi biomas, produksi tertinggi baik bobot basah daun dan petiol maupun bobot basah akar dan sulur terdapat pada kombinasi tanpa pemberian metil jasmonat dengan umur panen 84 HST. Kandungan asiatikosida pada akar dan sulur tertinggi terdapat pada kombinasi pemberian metil jasmonat 200 μM dengan umur panen 84 HST. Tanpa pemberian dan pemberian jasmonat 200 μM terjadi peningkatan kandungan asiatikosida setelah 70 hari sampai 84 HST, sedangkan pada pemberian jasmonat 100 μM diperoleh produksi asiatikosida daun maksimum ± 67 mg pada umur panen 70 HST. Efek interaksi umur panen dan dosis fosfor terhadap kandungan madekasosida akar dan sulur, tertinggi terdapat pada kombinasi umur panen 84 HST dan pemupukan fosfor 54 kg P205/ha. Panen pada umur 84 HST dengan pemberian fosfor pada taraf 18, 36, dan 54 kg P205/ha terdapat kandungan madekasosida lebih tinggi dibanding pada umur panen 56 atau 70 HST. Kandungan madekasosida daun lebih tinggi saat 56 HST pada berbagai dosis fosfor dan akan menurun pada 56 -70 HST lalu meningkat kembali setelah 69 HST pada dosis fosfor 0, 18 dan 36 kg P2O5/ha. Efek interaksi konsentrasi metil jasmonat dan dosis fosfor terdapat pada komponen produksi yaitu bobot basah dan bobot kering per plot, tertinggi terdapat pada perlakuan pemberian metil jasmonat 100 μM dan pemupukan fosfor 18 kg P205/ha masing-masing 401,743 g dan 43,285 g. Berat basah daun dan petiol, berat kering akar dan sulur dan berat basah sampel. Umur panen 56 HST menghasilkan bobot basah daun dan petiol maksimum 88,614 g dengan pemberian metil jasmonat 99,75 μM. Umur panen 70 HST, bobot basah daun dan petiol meningkat dengan pemberian metil 200 μM sedangkan pada umur panen 84 HST, bobot basah daun dan petiol menurun dengan pemberian metil jasmonat 200 μM. Bobot basah daun dan petiol tertinggi pada perlakuan pemberian metil jasmonat 100 μM dan pemupukan fosfor 18 kg P205/ha; 160,739 g. Bobot kering akar dan sulur tertinggi pada perlakuan pemberian metil jasmonat 100 μM dan pemupukan fosfor 18 kg P205/ha 23,598 g. Produksi madekasosida daun maupun akar tertinggi diperoleh pada pemberian metil jasmonat 200 μM dan pemberian fosfor 54 kg P205/ha. Tanpa pemupukan fosfor, produksi madekasosida akar meningkat hingga mencapai produksi maksimum ± 473 mg pada pemberian metil jasmonat 91,25 μM. sedangkan pemupukan fosfor 18 kg P2O5/ha diperoleh produksi asam asiatik akar maksimal ± 61 mg pada pemberian jasmonat 108,25 μM. Efek interaksi dosis fosfor, konsentrasi metil jasmonat dan umur panen tidak terdapat pada semua parameter pertumbuhan, produksi dan kandungan centellosida pegagan. Tindakan budidaya yang dilakukan terhadap pegagan sangat dipengaruhi oleh produksi centellosida yang diinginkan baik umur panen, konsentrasi metil jasmonat yang diberikan dan dosis fosfor yang tepat.en_US
dc.language.isoiden_US
dc.publisherUniversitas Sumatera Utaraen_US
dc.titlePeningkatan Produksi Centellosida pada Pegagan (Centella Asiatica) melalui Pemberian Fosfor dan Metil Jasmonat dengan Umur Panen Yang Berbedaen_US
dc.typeThesisen_US
dc.identifier.nimNIM098104011
dc.description.pages182 Halamanen_US
dc.description.typeDisertasi Doktoren_US


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