Jali (Coix Lacryma-jobi L.; Poaceae) Untuk Diversifikasi Pangan: Produktivitas Pada Berbagai Taraf Pemupukan [Jali (Coix Lacryma-jobi L.; Poaceae) for Food Diversification: Its Productivity Under Various Doses of Fertilization]

Jali (Coix lacryma-jobi L.; Poaceae) is a potential cereal for food diversification especially as carbohydrate source. The aim of this current research was to study the productivity of jali cultivated under various doses of fertilizer. Jali were planted on polybag (30x40 cm) with mix-ture of soil:compost=2:1 as planting media. Fertilizer treatments were A) 0-0-0; B) 2-1-1; C) 2,5-1,5-1,5; D) 3-2-2-; E) 3,5-2,5-2,5 and F) 4-3-3 gram urea:SP36:KCl (gr/polybag). The experiment used randomized block design with 9 replications. Result indicated that on 13 WAP (Week After Planting) the highest plant height achieved on 2,5-1,5-1,5 treatment (198,44 cm), leaf number on 4-3-3 treatment (65,44), tiller number on 4-3-3- treatment (4,22), and branch number on 2,5-1,5-1,5 treatment (5,89). These measurements were significantly different from control but not with the other fertilization treatments. On harvesting time of 6 MAP ( Months After Planting) the highest number of seed/plant was from treatment 4-3-3 (792,6) followed by treatment 2-1-1 treatment (672,5). The result of this study suggested that 2-1-1 gram Urea:SP36:KCl (gr/polybag) treatment was the best in increasing hanjeli productivity

Pengaruh Naungan Terhadap Pertumbuhan Bibit Pulai {Alstonia Scholaris (L.) R.br) [the Effect of Shading on the Growth of Pulai {Alstonia Scholaris (L.) R.br. Seedlings)]

Pulai {Alstonia scholaris (L.) R.Br famili Apocynaceae} is one of the prospective plants due to its multipurpose such as for construction, medicine and handicraft. It is known that pulai can be propagated by seed, cutting or grafting. To have the best performance of seedling in the nursery, we have to study many aspects. One of that aspect is shading tolerance of pulai seedling. This research was conducted to study the effect of 0, 25, 50 and 75% shading on the growth of pulai seedling. The result showed that the best growth of pulai seedlings is on the 0% shading. But in 25-50% shading the growth of pulai seedling are still in good performance, while in 75% of shading the growth have been decreased

Komunikasi Pendek*anatomi Dan Kandungan Klorofil Daun Keladi Tikus {Thyponiumflageliforme (Lodd.) Bl.} Pada Berbagai Intensitas Cahaya*[anatomy and Chlorophyll Content of Rodent Tuber Under Various Light Intensity]

Keladi tikus - rodent tuber- {Thyponium flageliforme (Lodd.) Bl.} atau T. divaricatum (L.) Decne, famili Araceae merupakan salah jenistumbuhan liar yang diduga dapat mengobati penyakit kanker. Tumbuhan ini dikenal dengan nama daerah bira kecil, daun panta susu,kalamoyang, ileus, ki babi dan trenggiling mentik. Teo dan Teo (1999) menyebutkan bahwa penderita kanker mendapatkan manfaat yang baik setelah mengonsumsi sari (juice) keladi tikus ini. Sari yang berasal dari seluruh bagian tumbuhan diduga dapat menghancurkan, membunuh dan menghambat pertumbuhan sel kanker, menghilangkan efek buruk kemoterapi serta bersifat antivirus dan antibakteri

Respon Genjer {Limnocharis Flava (L.) Buchenau.} Terhadap Pemupukan Dan Potensi Gizinya Untuk Diversifikasi Konsumsi Sayuran* [Responses of Velvet Leaf {Limnocharis Flava (L.) Buchenau.} to Fertilizer Treatments and Its Nutrition Potential for Vegetables

The research was carried out to study the effect of fertilizer on the growth (plant height, number of leaf, length and width of leaf, fresh weight) and flower production of velvet leaf – genjer {Limnocharis flava (L.) Buchenau} and to analyze nutrient potential i.e. proximate and amino acids in leaves and flowers (including stalk). Seedlings of velvet leaf with 6 leaves were planted and fertilizer treatments were applied in one week after planting. Planting media were mixture of soil:manure:compost (2:1:1). The fertilizer treatments included control, NPK2, NPK4, MU2, MU4, POH2 and POH4. The plants were cultivated until 5 Weeks After Fertilizing (WAF). The results showed that velvet leaf can be successfully cultivated in plastic pot on planting media added with fertilizer. The highest plant growth and flower production were in the MU4 treatment (NPK Mutiara 27-5-5, 4g/plastic pot). Application of starTmik Biofertilizer 4cc/50cc water/plastic pot showed as good performance as the MU4 treatment, however, the dosage and application frequency need to be increased. The proximate analysis on leaves and flowers showed considerably high percentage of crude fibre (1.56% and 1.42%), protein (2.04% and 1.98%) and carbohydrate (3.16% dan 2.98%). Amino acid analysis revealed 9 numbers essensial amino acids and 8 number non essensial amino acids

Potensi Rumput-rumputan Untuk Fitoremediasi Lahan Terdegradasi Penambangan Emas*[the Potential of Grasses on Phytoremediation of Degraded Land by Gold Mining]

Phytoremediation is defined as a clean up of pollutants primarily mediated by pliotosynthetic plants so its could be used as an alternative technique to overcome contaminated soil and water such an mining ecosystems. These plants have several beneficial characteristics; they have ability to accumulate metals in their shoots and especially high tolerance to heavy metals.Since Indonesia has abundant plant diversity, it is believed that some of them are potential to be used as phytoremediator.This research was carried out to study the potential of three species of grasses in accumulating Pb and Cn. The treatments were arranged on Randomized Complete Block Design (factorial design). The first treatment are species of grass: 1) Cynodon dactylon Pers., 2)Cyperus sp. and 3) Ischaemum timorense Kith.; the second treatment is planting media i.e. 1) tailing soil, 2) soil from wildmining (mining activities run by unexpected miners) and 3) top soil and the third is organic fertilizer: 1) manure, 2) compost and 3) no fertilizer.The resultsshowed that all of the three grasses are potential to accumulate Pb and Cn. Organic fertilizer mixed on planting media is significantly affected the growth of grasses and increasing the accumulation of Cn on leaf of Cyperus sp. and I.timorense. While no evidence in increasing Pb accumulation on all of those three grasses specie

Pemanfaatan Salvinia Molesta D.s. Mitchell, Akumulator Merkuri Di Sawah Tercemar Limbah Penambangan Emas

Mercury is one of important contaminants in mine lands. One approach to remediaterisks from this metal pollutant is phytoextraction using hyperaccumulator plants. Theseremarkable plant species accumulate appreciable high concentrations of metals thando normal plants when the normal plants suffer yield reduction from metal phytotoxicity.Some plant species growing in gold mine contaminated areas indicated high toleranceand potentially effective in accumulating mercury in their roots and above groundportions. Salvinia molesta is one of them. This plant could be utilized as hyperaccumulatorfor cleaning up mercury contaminated sites. This research aim to study phytoextractionof mercury by Salvinia molesta and the effectiveness of mercury degradator bacteria onplant tolerance and mercury phytoextraction. In this study Salvinia molesta was grown inmercury contaminated liquid gold mine waste, added with Mercury (II) Chloride (HgCl2)0 ppm Hg, 10 ppm Hg, 30 ppm Hg and 50 ppm Hg. Mercury degradator bacteria wasapplied in the media. The results showed that Salvinia molesta was able to survive evenin media with high level of mercury concentration (50 ppm), although the number ofplant survival tend to decrease with the increase of mercury concentration. Variables ofsurface coverage and live plants decreased with the increase of mercury concentrationin the media. There was a close correlation between plant growth variables and mercuryconcentration in the media. The effects of mercury toxicity on plants seems to decreasein bacteria treated plants. It was indicated by the higher percentage of surface coverageand plant survival in bacteria treated plants than that of untreated plants up to 30 ppm Hg.Recovery from toxicity was shown in bacteria treated plants up to 30 ppm Hg. Mercuryaccumulation in plants tent to increase with the increase of mercury concentration inmedia. It can be concluded that plant performance was better and mercury concentrationdecreased in bacteria treated plants

Pertumbuhan Dan Produksi Jagung Pulut Lokal Sulawesi Selatan Yang Ditanam Di Polibag Pada Berbagai Kombinasi Perlakuan Pupuk Organik

Research has been carried out through the utilization of organic fertilizer to improve the productivity of local maizecultivar originated from South Sulawesi. The study was conducted at the research station of Research Center for Biology,Cibinong Science Center. Corn seed were planted in polybag containing mixture of soil and compost, 6 and 2kg, respectively. The research were carried out by Randomized Complete Block Design arranged in factorial experimentwith four replications. The first factors are three types of local maize namely A: rice corn (pulut beras, BataraKoasa), B: waxy corn (pulut biji, Batara Kamu), C: pulut hibrida (hybrid cultivar). The second factors are 14 combinationtreatment as a mixture of LIPI organic fertilizer (Beyonic-StarTmik, Bio121, EM-121 and MegaRhizo) andanorganic NPK fertilizer. The variables observed were plant growth and production. The results showed that thehybrid cultivar had higher total corn yield productivity compared to the local one, although hybrid cultivar hassmaller plant biomass. Waxy corn (B) accession showed the weight, length and diameter of cob, and also the weightof 100 grains larger than rice corn (A). Fertilization treatments significantly affect the corn-cob productivity which isincludes the weight, length, and diameter units. Fertilization treatments such as EM-121 + (½ dose of NPK), BIO-121 + (½ dose of NPK), and Beyonic + (¼ dose of NPK) showed a good effect on plant, and it was not significantlydifferent with 100% NPK (full doses of NPK). The three corn cultivar showed different responses to fertilizationtreatments