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Miftakhurrohmat, A
Universitas Muhammadiyah Sidoarjo

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Analisis Kekerabatan Beberapa Genotipe Kedelai (Glycine max L. Merrill) Berdasarkan Komponen Penentu Kekerabatan Miftakhurrohmat, Agus
NABATIA Vol 1, No 1 (2010): June
Publisher : Universitas Muhammadiyah Sidoarjo

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The Success to realize a new superior soybean variety is definitely by a genetic an phenotypic variability. Morphological relationships among soybean genotypes is necessary to orchid breeder in obtaining good hybrids in perennial plants. Openly related among soybean genotypes would increase their crossing opportunity. The aim of this research was to identify morphological relationships of ten soybean genotypes based relative determinant components. The research was carried out on the August until November 2005, at the experiment field of the Jember State Polytechnic and in the Biomolecular Laboratory of the Jember University. The experiment designed in Randomized Block Design (RBD), with ten soybean genotypes as treatment in the three replications. Relationships among of ten soybean genotypes was analyzed according to Cluster Analysis. The result of cluster analysis indicated that, (1) However the genotypes ZKJ 2-3 and ZKJ 1-7 are the most identical on similarity distance 0.0025. On similarity distance more than 0.9965, genotypes ZKJ 1-7 and 482 is different exclusively (2) On minimum distance 0.100 all of genotypes soybean can be divide four groups i.e. Group I (55, 56, 481, 482, Galunggung and 52), group II (ZKJ 2-3 and ZKJ 1-7), group III (I10), and group IV (Lokon).
PENGARUH KOMBINASI PUPUK ANORGANIK DAN JUMLAH MATA TUNAS TERHADAP PERTUMBUHAN AWAL TANAMAN TEBU(Saccaharum officinarum L) Suwanan, Suwanan; Miftakhurrohmat, A
NABATIA Vol 11, No 1 (2014): July
Publisher : Universitas Muhammadiyah Sidoarjo

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Aim of this study was to study the interaction effect between combination treatment of anorganic fertilizer and amount of the buds on the beginning of the growth sugarcane (Saccaharm officinarumL.), which conducted in green house of Sidoarjo Muhammadiyah University on March to May 2014. Experiment was arranged by randomized block design (RBD) with factorial consist of two factor and triplicate. First factor was combination of anorganic fertilizer, consists of four levels ie K1 (Urea 100% with fertilizer ponska 0%) = 1304.378 kg urea/ha, K2 (Urea 75% fertilizer ponska 25%) = 978.2835 kg urea/ha with Phonska 1000 kg/ha, K3 (urea 50% fertilizerponska 5%) = 652 196 kg urea/ha with Phonska 2000 kg/ha, K4 (urea 25% fertilizer Phonska 75%) = 326.0945 kg urea/ha with Phonska 3000 kg/ha and K5 (Urea 0% with fertilizer ponska 100%) = Phonska 4000 kg/ha, while the second factor is the number of buds, comprising two kinds, namely T1 (the buds) and T2 (two buds). The data showed that was interaction between combination treatment of anorganic fertilizer andamount of buds at variable leaf area. The best treatment is a combination of Urea 50% fertilizer ponska 5% (Urea 652 196 kg/ha with Phonska 2000 kg/ha) and number of buds one (T1K3) to produce an average of leaf widest (14:50 cm2) age 30hst, and treatment inorganic fertilizer effect on the variable leaf area, root length (59.54cm) and the weight of the root (9.072gr), treatment K3 (urea 50% fertilizer ponska 5%) = 652196 kg urea/ha with Phonska 2000kg/ha effect on the variable area leaf, as well as observation of a variable length of root and root weight occurred in treatments K5 (urea fertilizer Phonska 0% to 100%) = urea 0 g/ha Phonska 4000 kg/ha. Treatment buds number one (T1)was siginificantly different on observed variabel of plant diamater and “luas daun” has good effect.
UJI PERBANDINGAN PEWARNA SINTETIS DENGAN PEWARNA ALAMI TERHADAP KUALITAS GULA KAPAS Alifudin, Umar; Miftakhurrohmat, A
NABATIA Vol 12, No 1 (2015): October
Publisher : Universitas Muhammadiyah Sidoarjo

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This study aims to comparesynthetic and natural colour on quality and characteristics of sugar cotton. The research was conducted in April-June 2014 at Laboratory of Product Development and Laboratory of Food Analysis, Faculty of Agriculture, Muhammadiyah University of Sidoarjo. The experiment was arranged in a randomized block design (RBD) with 7 treatment consisting:withoutcolour (control), addition of synthetic colourand natural colourwithin ratio 12 ml:0 g, 8 ml:16 g, 8 ml:32 g, 4 ml:16 g, 4 ml:24 g, and 0 ml:48 gr. The measured variables were chemical analysis (concentration of sucrose, glucose and fructose), physical analysis (volume, weight shrinkage, durability sugar cotton inside and outside plastic) and organoleptic analysis (color, taste, aroma, and texture). The data of chemical and physical analysis were analyzed by Anova followed byHSD 5%, while organoleptic was analyzed by Friedman test and method of De Garmo to find the best treatment. Comparison between synthetic colourand natural colour were significantlydifferent on the levels of sucrose, glucose, fructose, volume analysis, resilience in plastic and outer plastic resistance; and significantly affect the color and flavor, but not significantly different on taste and texture. Overall, the best treatment was without natural preservatives and artificial; but the all treatment with preservatives,synthetic colour of 8 ml treatment and 16 g natural colourwas the best treatment.