Articles

Found 8 Documents
Search

Leaf, Anthocyanin, and Protein Production of Ta linum triangulare Jacq. Willd with Various Rates of P Fertilizer Mualim, Leo; Aziz, Arifin
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (27.11 KB)

Abstract

The effect of P fertilizer rates on growth and production parameters of waterleaf [Talinum triangulare (Jacq.) Willd] were studied over two months (February-April 2010) in Bogor. Treatments of five P-rates (0, 200, 400, 600, and 800 kg SP-18 ha-1) were laid out in a randomized complete block design with three replications. Generally, the effect of P fertilization in waterleaf was mostly prominent at 8th week after planting (WAP). The increase of  P rates increased leaf area, leaf fresh weight, edible part (shoot weight), and protein production; but decreased anthocyanin production. These results suggested that to produce high protein and anthocyanin, waterleaf must be fertilized with 400 kg SP-18 ha-1; and P fertilizer must be applied at least two weeks before planting.   Keywords: inorganic fertilizer, phosphorus, portulacaceae, secondary metabolite  
Aplikasi Pupuk Inorganik Meningkatkan Produksi dan Kualitas Pucuk Kolesom pada Musim Hujan Mualim, Leo; Aziz, Sandra Arifin; Susanto, Slamet; Melati, Maya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (350.992 KB)

Abstract

using complete randomized block design with three replications. The means from each plot were compared by using t-student’s test. Application of inorganic fertilizer resulted in a higher shoot production (at 6 week after planting) and a better quality leaves compared to other treatment. This research revealed that high quality waterleaf can be indicated by some criterias, i.e., higher content of primary metabolites (sugar and protein), secondary metabolites (phenolic, flavonoid, and chlorophyll), and antioxidant capacity (low IC50 value). Therefore, application of inorganic fertilizer in wet season is recommended to produce high yields and high quality water leaf. Keywords: sugar, protein, phenolic, flavonoid, DPPH
Kajian Pemupukan NPK dan Jarak Tanam pada Produksi Antosianin Daun Kolesom Mualim, Leo; Aziz, Sandra Arifin; Melati, Maya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 37, No 1 (2009): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (97.858 KB)

Abstract

The effects of NPK fertilization and plant spacing on leaf anthocyanin production of Talinum triangulare (Jacq.) Willd. were studied. A factorial experiment was used to study the combination of two factors i.e. NPK fertilization (no fertilization, NPK, NP, NK, and PK) and plant spacing (100 cm x 45 cm, 100 cm x 60 cm, 100 cm x 75 cm). These combinations were arranged in randomized block design, with three replications. The result showed that there was no effect of plant spacing and interaction between two factors. Application of NP (minus K) fertilizer gave the lowest value for almost all parameter except shoot/root ratio. This result suggested that fertilization played significant role in increasing anthocyanin production and the limiting factor was potassium.   Key words: Talinum triangulare, NPK  fertilization, anthocyanin production
Kajian Pemupukan NPK dan Jarak Tanam pada Produksi Antosianin Daun Kolesom Mualim, Leo; Aziz, Sandra Arifin; Melati, Maya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 37, No 1 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar

Abstract

The effects of NPK fertilization and plant spacing on leaf anthocyanin production of Talinum triangulare (Jacq.) Willd. were studied. A factorial experiment was used to study the combination of two factors i.e. NPK fertilization (no fertilization, NPK, NP, NK, and PK) and plant spacing (100 cm x 45 cm, 100 cm x 60 cm, 100 cm x 75 cm). These combinations were arranged in randomized block design, with three replications. The result showed that there was no effect of plant spacing and interaction between two factors. Application of NP (minus K) fertilizer gave the lowest value for almost all parameter except shoot/root ratio. This result suggested that fertilization played significant role in increasing anthocyanin production and the limiting factor was potassium. ? Key words: Talinum triangulare, NPK ?fertilization, anthocyanin production
using complete randomized block design with three replications. The means from each plot were compared by using t-student’s test. Application of inorganic fertilizer resulted in a higher shoot production (at 6 week after planting) and a better quality leaves compared to other treatment. This research revealed that high quality waterleaf can be indicated by some criterias, i.e., higher content of primary metabolites (sugar and protein), secondary metabolites (phenolic, flavonoid, and chlorophyll) Mualim, Leo; Aziz, Sandra Arifin; Susanto, Slamet; Melati, Maya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar | Full PDF (27.11 KB)

Abstract

using complete randomized block design with three replications. The means from each plot were compared by using t-student?s test. Application of inorganic fertilizer resulted in a higher shoot production (at 6 week after planting) and a better quality leaves compared to other treatment. This research revealed that high quality waterleaf can be indicated by some criterias, i.e., higher content of primary metabolites (sugar and protein), secondary metabolites (phenolic, flavonoid, and chlorophyll), and antioxidant capacity (low IC50 value). Therefore, application of inorganic fertilizer in wet season is recommended to produce high yields and high quality water leaf. Keywords: sugar, protein, phenolic, flavonoid, DPPH
Leaf, Anthocyanin, and Protein Production of Talinum triangulare Jacq. Willd with Various Rates of P Fertilizer Mualim, Leo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar | Full PDF (194.638 KB)

Abstract

The effect of P fertilizer rates on growth and production parameters of waterleaf [Talinum triangulare (Jacq.) Willd] were studied over two months (February-April 2010) in Bogor. Treatments of fi ve P-rates (0, 200, 400, 600, and 800 kg SP- 18 ha-1) were laid out in a randomized complete block design with three replications. Generally, the effect of P fertilization in waterleaf was mostly prominent at 8th week after planting (WAP). The increase of P rates increased leaf area, leaf fresh weight, edible part (shoot weight), and protein production; but decreased anthocyanin production. These results suggested that to produce high protein and anthocyanin, waterleaf must be fertilized with 400 kg SP-18 ha-1; and P fertilizer must be applied at least two weeks before planting. Keywords: inorganic fertilizer, phosphorus, portulacaceae, secondary metabolite
KOMPETISI ANTARA TANAMAN SORGUM DENGAN ROTTBOELLIA Sagala, Danner; Mualim, Leo; Darmadi, Didi
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 9 No 2 (2011): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Original Source | Check in Google Scholar

Abstract

This research was aimed to study the competitiveness of shorgum and Rottboellia exaltata L.f.. The experiment was done at glass house, experimental station of SEAMEO-BIOTROP, Bogor on 3 Oktober – 17 November 2009. The main plant was Sorghum and the weed was Rottboellia exaltata L.f.. the result showed that the sorghum was more competitive than Rottboellia exaltata L.f..
Different Growth Partitioning and Shoot Production of Talinum triangulare Treated with Organic and Inorganic Fertilizer Aziz, Sandra A.; Mualim, Leo; Farchany, Sitta Azmi
Journal of Tropical Crop Science Vol 1 No 1 (2014): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Original Source | Check in Google Scholar | Full PDF (431.897 KB)

Abstract

Talinum triangulare or waterleaf is an underutilized tropical plant, mostly found as weeds, and has been used more as medicinal plant than as vegetable in Indonesia.  The study of Talinum triangulare cultivation has been explored to increase the shoot production as functional vegetables.  The effects of organic fertilizer applications   at 0.50, 0.75, 1.00, 1.25 and 1.50 of the standard rate on waterleaf growth were tested in a Leuwikopo research station, Bogor, West Java, Indonesia. Standard rate of organic fertilizer consisted of 12.3 t..ha-1 of cow manure, 226.8 kg. .ha-1 of guano, and 5.5 t.ha-1 of rice hull ash that is equal to 100 kg urea, 60 kg SP-36 and 100 kg KCl.ha-1.  Net assimilation rate (NAR) of the organic fertilizer-treated plants was lower than the inorganic fertilizer-treated with plant at two to four weeks after planting (WAP). However, the plants treated with 0.75-1.25 organic fertilizer had a higher NAR than those treated with inorganic fertilizer at four to six WAP.  Plants treated with 0.75 rate of organic fertilizer had similar relative growth rate (RGR) to plants treated with the inorganic fertilizer at two to four WAP, whereas plants treated with 1.00, 1.25 and 1.50 standard rate had higher RGR than plants treated with inorganic fertilizer at 4-6 WAP.   Plants treated with 1.50 organic fertilizer rate had 34.55% more marketable shoots compared to those treated with inorganic fertilizer whereas those treated with 0.50 rate of organic fertilizer had 179.54% at 6 WAP.  The percentage of marketable shoots to total fresh weight of the organic fertilizer-treated plants was lower than the inorganic fertilizer-treated plants.Keywords: Talinum triangulare, leafy vegetables, organic