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PENGARUH CEKAMAN AIR TERHADAP MUTU SIMPLISIA PEGAGAN (Centella asiatica L) MONO RAHARDJO; ROSITA SMD; RATNA FATHAN; SUD1ARTO SUD1ARTO
Jurnal Penelitian Tanaman Industri Vol 5, No 3 (1999): Desember, 1999
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n3.1999.92-97

Abstract

Effect of water stress on the quality of Centella asiatica L. simplisiaResearch on the effect of water stress on Centella asiatica L. was done at the Research Institute for Spice and Medicinal Cops, Bogor. fom January 1997 to March 1998. The objective of the research was to increase the quality of C asiatica L simplisia. Six treatments of water stress were applied based on the percentages of field capacity : (1) 100%, (2) 90%, (3) 80%. (4) 70%. (5) 60%, and (6) 50%. A randomized block design with five replications was used, and each replication in one treatment contained four polybags. Each polybag contained 9.25 kg of soil mixed with 750 g of dung, and 3 g of urea, TSP, and KCI respectively. Three plants o/C. asiatica L. fom Banjaran Bandung wee planted in each polybag. The teatment of water stress was applied one month after planting, then the plants were harvested al two months old. Observation of biomass production included : leaf number, leaf area, fresh and dry weight of leaves, petiole, and stem. Observation on the quality of simplisia included the contents of the contents of asiaticoside acid, asiatic acid, and madecasic acid. The result indicated that water stress showed negative correlation with biomass accumulation. Inceasing 1% of water stress decreased 191 mg of biomass accumulation. Application of water stess could inceased the quality of C*. asiatica L. simplisia. The optimum of asiaticoside acid at the treatment of 53.9% of field capacity was 3.56%, asiatic acid at the treatment of 65.1% of field capacity was 1.42%. and madecasic acid at the treatment of 68.5% of field capacity was 1.76%.
PENGARUH CEKAMAN AIR TERHADAP MUTU SIMPLISIA PEGAGAN (Centella asiatica L) MONO RAHARDJO; ROSITA SMD; RATNA FATHAN; SUD1ARTO SUD1ARTO
Jurnal Penelitian Tanaman Industri Vol 5, No 3 (1999): Desember, 1999
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n3.1999.92-97

Abstract

Effect of water stress on the quality of Centella asiatica L. simplisiaResearch on the effect of water stress on Centella asiatica L. was done at the Research Institute for Spice and Medicinal Cops, Bogor. fom January 1997 to March 1998. The objective of the research was to increase the quality of C asiatica L simplisia. Six treatments of water stress were applied based on the percentages of field capacity : (1) 100%, (2) 90%, (3) 80%. (4) 70%. (5) 60%, and (6) 50%. A randomized block design with five replications was used, and each replication in one treatment contained four polybags. Each polybag contained 9.25 kg of soil mixed with 750 g of dung, and 3 g of urea, TSP, and KCI respectively. Three plants o/C. asiatica L. fom Banjaran Bandung wee planted in each polybag. The teatment of water stress was applied one month after planting, then the plants were harvested al two months old. Observation of biomass production included : leaf number, leaf area, fresh and dry weight of leaves, petiole, and stem. Observation on the quality of simplisia included the contents of the contents of asiaticoside acid, asiatic acid, and madecasic acid. The result indicated that water stress showed negative correlation with biomass accumulation. Inceasing 1% of water stress decreased 191 mg of biomass accumulation. Application of water stess could inceased the quality of C*. asiatica L. simplisia. The optimum of asiaticoside acid at the treatment of 53.9% of field capacity was 3.56%, asiatic acid at the treatment of 65.1% of field capacity was 1.42%. and madecasic acid at the treatment of 68.5% of field capacity was 1.76%.
PENGARUH PEMUPUKAN DAN PEMANGKASAN TERHADAP PERTUMBUHAN, STATUS HARA, DAN PRODUKTIVITAS TANAMAN HANDEULEUM (Graphtophyllum pictum (L) Griff.) MUHAMAD DJAZULI; RATNA FATHAN
Jurnal Penelitian Tanaman Industri Vol 5, No 2 (1999): September, 1999
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n2.1999.70-73

Abstract

Effect offertilizer and pruning on growth, nutrient status, and productivity of caricature plant (Graphtophyllum pictum (L) Grif.)Information on the effect of fertilizer and top cutting application on growth, nutient uptake, and productivity of caricatue plant (Graphtophyllum pictum (L) GrifT.) was limited. Increasing demand for that crop in the future as traditional medicine should be back up by applicable agronomical informations of caicature plant. The objective of this study was to evaluate the effect of fertilizer and pruning applications on growth, nutrient uptake, and productivity of caricature plant. The pot trial was conducted at the Research Institute for Spices and Medicinal Crops from August 1997 to January 1998. A randomized block design was arranged with two factors and 3 replications. Each treatment consisted of 5 plants. The irst factor consisted of three shoot cutting periods . (I) control; (2) 2 months ater planting (MAP) and (3) 4 MAP. The second factor was 6 fertilizer combinations: (1)-N, -P, -K, and manue (M); (2) -N, +P +K. and +M; (3) . +N, -P, +K, and +M; (4) +N, +P, -K, and +M; (5) +N, +P, +K, and -M; (6) +N, +P, +K, and +M, respectively. It was consideed that there were significant interaction between fertilizer and pruning applications, especially on the gowth and productivity of caricatue plant. Application of NPK and manue impoved plant productivity and nutrient status. Pruning treatments wee able to increase leaves fresh weight signiicantly. The highest productivity of caicatue plant was found at the combination teatment of pruning and N, K, Manue fertilizer applications. Theefore, the optimal growth and productivity could be achieved by early pruning and fertilizer application, especially manure.
Co-Authors MONO RAHARDJO MUHAMAD DJAZULI ROSITA SMD SUD1ARTO SUD1ARTO