Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Buletin Penelitian Tanaman Rempah dan Obat Perspektif : Review Penelitian Tanaman Industri Perspektif, Review Penelitian Tanaman Industri Buletin Penelitian Tanaman Rempah dan Obat
Muhamad Djazuli
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Education

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
RESPON DUA NOMOR HARAPAN PIRETRUM TERHADAP PEMUPUKAN Muhamad Djazuli
Buletin Penelitian Tanaman Rempah dan Obat Vol 17, No 1 (2006): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v17n1.2006.%p

Abstract

Responses of two promising clones of pyrethrum to fertilizer applicationPyrethrum is one of the potential botani-cal pesticides to be further developed for the substitution of synthetic pesticide such as pyreth-roid, which is found to be harmful both to the environment and human being. Therefore, high yielding plant material with high pyrethrin content is a prerequisite for a continuous supply of raw material in botanical pesticides produc-tion. For that purpose, two promising clones of pyrethrum were assessed for their response to fertilizer application and conducted at Kayu Giyang village (1500 m asl) of  Wonosobo re-gency, Central Java. Two promising clones of pyrethrum namely Prau 6 and Gunung Wates 45 were subjected to seven NPK fertilizer combina-tion treatments using Split Plot Design with three replications. The results showed that N and P fertilizer applications at the Kayu Giyang, Dieng highland were able in improving produc-tivity of pyrethrum by increasing flower number and flower fresh weight of both Prau 6 and Gunung Wates 45 clones, significantly. NPK application with medium dosage (100 kg N, 200 kg P, and 100 kg K/ha) was able to produce high productivity and fertilizer efficiency. However, there was no significant effect as compared to the high dosage application. Based on the nut-rient status and dry weight, it could be con-cluded that amount of N absorbed by plant was high, followed by K and P. Furthermore, based on the nutrient status, the P fertilizer absorbed by pyrethrum was relatively low and approxi-mately 20.00% from N absorbed. The pyrethrin contents from the two clones tested were relatively high (>1.00%). 
KARAKTERISTIK AGRONOMI BEBERAPA AKSESI DAN VARIETAS NILAM PADA UMUR PANEN BERBEDA Muhamad Djazuli
Buletin Penelitian Tanaman Rempah dan Obat Vol 22, No 1 (2011): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v22n1.2011.%p

Abstract

Agronomical Characteristics of Some Patchouli Accessions and Varieties at Several Harvest TimesInternal factor (genetic) and external fac-tor (ecological condition) strongly affect growth and productivity of patchouli. The objective of this study is to find out the agronomical characteristics of some ac-cessions, protoplast fusion, somaclones, and varieties of patchouli at 4, 5, 6 months after planting (MAP). For finding those agronomic characteristics, a pot ex-periment was conducted at Cimanggu Research Station, Bogor from May to De-cember 2009. The experiment was ar-ranged in randomized block design with 3 replicates. 12 accessions/varieties of pat-chouli consist of 4 somaclones, 4 acces-sions of protoplast fusion, 3 high yielding varieties, and 1 local variety were tested in this experiment. Growth and production components, number of oil gland and oil content of leaf were observed at 4, 5, and 6 MAP, while patchouli oil content were observed at 4 MAP. Results showed that protoplats fusion of PS 32 accession reveal the highest growth and biomass compo-nents compared to other accessions and varieties tested. Lower oil content of PS 32. The highest oil production per plant were found at PS 18 and PS 17. There is a linier correlation between oil content and number of oil gland in the leaf from 12 patchouli accessions and varieties tested. Patchouli alcohol content from the six pat-chouli accessions and varieties tested at 4 MAP were higher than 30%, being higher than minimal PA content for export. From those results it is indicated that even-though PS 18 and PS 17 accessions have high oil content, those accessions have some java patchouli genes characters, therefore evaluation of PS 18 and PS 17 to biotic and abiotic stress conditions are needed. 
PENGARUH PUPUK P DAN MIKORIZA TERHADAP PRODUKSI DAN MUTU SIMPLISIA PURWOCENG Muhamad Djazuli
Buletin Penelitian Tanaman Rempah dan Obat Vol 22, No 2 (2011): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v22n2.2011.%p

Abstract

Purwoceng (Pimpinella pruatjan) merupa-kan salah satu tanaman obat asli Indone-sia berkhasiat afrodisiak yang hanya mam-pu tumbuh baik di dataran tinggi. Tanah di dataran tinggi umumnya mempunyai kan-dungan hara P rendah. Rendahnya kan-dungan hara P tersedia pada tanah ke-mungkinan disebabkan oleh tingginya daya serap P tanah tersebut. Untuk meningkat-kan ketersediaan hara P, produktivitas, dan mutu tanaman purwoceng, diperlukan teknologi pemupukan yang tepat. Untuk mencapai tujuan tersebut sebuah peneliti-an aplikasi pemupukan P dan mikoriza di-laksanakan di KP. Gunung Putri, Cianjur (1.500 m dpl) dengan menggunakan pot yang berisi 10 kg tanah Andosol dan pu-puk kandang. Percobaan faktorial disusun dalam Rancangan Acak Kelompok dengan 4 ulangan. Faktor pertama 4 dosis aplikasi mikoriza masing-masing M0 (tanpa mikori-za), M1 (10 g mikoriza/pot); M2 (20 g mi-koriza/pot), dan M3 (30 g mikoriza/pot), sedangkan faktor kedua adalah 4 dosis pe-mupukan P masing-masing P0 (tanpa pu-puk P), P1 (1 g SP-36/pot), P2 (2 g SP-36/ pot), dan P3 (3 g SP-36/pot). Hasil analisis statistik menunjukkan tidak adanya inte-raksi antara aplikasi pemupukan P dan mi-koriza terhadap pertumbuhan dan produksi purwoceng. Aplikasi mikoriza pada dosis 30 g mikoriza/pot (M3) mampu meningkat-kan produktivitas tanaman purwoceng pa-da 4 dosis pemupukan P yang diuji secara nyata. Sebaliknya, pemupukan P tidak ber-pengaruh terhadap pertumbuhan dan pro-duktivitas purwoceng. Perlakuan pemupuk-kan P tanpa pemberian mikoriza (M0) ter-lihat menurunkan beberapa bahan aktif di dalam simplisia purwoceng. Sebaliknya, pemupukan P yang dikombinasikan deng-an aplikasi mikoriza dosis 30 g/pot (M3) mampu meningkatkan kadar bahan aktif sitosterol, stigmasterol, saponin dan ber-gapten simplisia purwoceng masing-ma-sing 22, 44, 8,2, dan 19%. Terdapat inte-raksi yang nyata antara aplikasi P dan mi-koriza pada parameter jumlah populasi dan persentase infeksi mikoriza pada akar. Peningkatan dosis aplikasi mikoriza meningkatkan populasi dan persentase in-feksi mikoriza pada akar. Sebaliknya, pe-mupukan P dosis tinggi terlihat menekan populasi dan persentase infeksi mikoriza pada akar, sehingga untuk meningkatkan populasi dan efektivitas mikoriza pada akar purwoceng diperlukan ketersediaan P tanah yang tidak terlalu tinggi dan opti-mal bagi mikoriza.
Co-Authors Aminuyati Cheppy Syukur Siswanto Siswanto Sondang Suriati Wiratno Wiratno