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Journal : SAINS DAN MATEMATIKA

Respon Pertumbuhan dan Produksi Senyawa Antioksidan pada Kalus Hibiscus sabdariffa L. dari Eksplan yang Berbeda secara in vitro Noviati, Agustin; Nurchayati, Yulita; Setiari, Nintya
JURNAL SAINS DAN MATEMATIKA Volume 22 Issue 1 Year 2014
Publisher : JURNAL SAINS DAN MATEMATIKA

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Abstract

Ascorbic acid and carotenoid are secondary metabolites found in roselle, which show antioxidant activity. These compounds can be obtained from callus induced  by several kinds of explants. The aims of this experiment is to study callus growth from explants which can encourage high level of antioxidant compounds. The callus was obtained from difference organ, i.e. section of leaf, petiole and flower sepal. Sterilized explants were planted in MS (Murashige&Skoog) combined with 2 mg/L Naphtalene Acetic Acid (NAA) dan 5 mg/L Benzyl Adenin (BA).  This experiment has been conducted by completly randomized design with 5 replicates. Besides fresh weight callus, callus respons from each explants were analyzed descrptively.  Ascorbic acid and carotenoid content were analyzed qualitatively and quantitatively by titration and spectrophotometric respectively.  The results showed that all kinds of explant dedifferentiated into callus which antioxidant content. Callus from leaf section had the higgest fresh weight with high level ascorbic acid. Whereas the higgest carotenoid level was obtained from callus-derived flower sepals. It conclused that  in vitro callus was useful for producing plant biochemical compounds. Keywords : Callus induction, antioxidant agents, explants, ascorbic acid, cartenoid
Pertumbuhan Tongkol Jagung Baby Corn (Zea Mays L.) Varietas Pioneer-11 Setelah Pemberian Kascing Nurchayati, Yulita; Yuliana, Titis
JURNAL SAINS DAN MATEMATIKA Volume 14 issue 4 Year 2006
Publisher : JURNAL SAINS DAN MATEMATIKA

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ABSTRACT---An experiment to obtain high productivity of baby corn’s cob by casting treatment has been conducted. The aims of this experiment were to study the casting effect for baby corn productivity and to obtain the efficient dose of casting to increase baby corn productivity. This experiment was done by a Randomized Complete Design with four treatment and seven replication. The treatments were four kinds of casting dose, i.e 0g/plant, 200g/plant, 400g/plant and 600g/plant in their growth media. The measurable parameter were fresh weights, dry weights and cob quantity of baby corn. The casting was analyzed qualitatively including C/N ratio and organic material of casting. The result showed that the casting can increase the cob of baby corn productivity eventhough the efficient doses of casting to increase the baby corn productivity were not obtained.   Keywords: baby corn, casting, cob