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All Journal Jurnal ILMU DASAR Journal of Parasite Science Berkala Penelitian Hayati
Kusriningrum Rochiman
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Veterinary

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The Roles of Nitrogen and Potassium to Phosphoenolpyruvate Carboxylase Activity in the Leaves of Ratoon Crop M 442-51 and PS 60 Sugarcane Varieties Hadisaputro, Suyoto; Rochiman, Kusriningrum; PDN, Mirzawan; Sukarso, Gunawan; Sugiharto, Bambang
Jurnal ILMU DASAR Vol 9 No 1 (2008)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.722 KB)

Abstract

Study on the roles of nitrogen and potassium to phosphoenolpyruvate carboxylase (PEP-Case) activity in the leaves of ratoon crop of M 442-51 and PS 60 cane varieties were conducted in the Indonesian Sugar Research Institute (ISRI) Pasuruan, East Java. The experiment was arranged in a factorial trial using a completely ran-domized block design with three replicates. The factors used as a treatments in this experiment were: (1) sugar-cane variety, i.e. M 442-51 (V1) and PS 60 (V2), (2) plant category, i.e. plant crop (PC) and second ratoon crop (RC2), (3) dosage of nitrogen, i.e. 1 q AS/ha (N1) and 8 q AS/ha (N2), and (4) dosage of potassium, i.e. 1 q KCl/ha (K1) and 5 q KCl/ha (K2). PEP-Case activity variable was observed on 0, 1 and 4 weeks after treatment (wat). The results of experiment showed that nitrogen (N) and potassium (K) nutrients as single or mixture treatments were increasing the activity level of PEP-Case in the cane leaves significantly. There was indication that the effect of N is stronger than that the effect of K to PEP-Case activity in the leaves of cane. On the other hand, it was found that the activity of PEP-Case in M 442-51 was higher than that on PS 60. However, when the availability of both nutrients was limited, the decreasing activity of PEP-Case on PS 60 was sharper than that found on M 442-51. Study on plant category showed that the activity of PEP-Case on PC was higher than that found on RC2. Reducing of PEP-Case activity on RC2 was predicted as one factor that caused reducing of RC2 productivity. Base on these findings, it can be concluded that PEP-Case activity model in the leaves could be used as an early characteristic of cane ratooring ability. There were indications that the ability of both Mn and Cu nutrients affected the increasing of PEP-Case activity better than that influenced by N and K nutrients, but it needs further investigation. 
Prevalensi dan Derajat Infeksi Cacing Saluran Pencernaan pada Itik Jawa (Anas javanica) di Dua Daerah Geografis Berbeda Permatasari, Dian Ayu; Rochiman, Kusriningrum; Restiadi, Tjuk Imam; Sosiawati, Sri Mumpuni; Suprihati, Endang; Effendi, Mustofa Helmi
Journal of Parasite Science (JoPS) Vol 4, No 1 (2020): Journal of Parasite Science
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.647 KB) | DOI: 10.20473/jops.v4i1.20271

Abstract

The aim of this study was to determined the prevalence and infection disease degree of worm gastrointestinal on duck in two different geographical territories. The duck feces examination samples were using natif method, sedimentation, and floatation. The result of this examination of lowlands showed that 20% (12/60) ducks checked that infected by two worm species of nematoda, wich ia Ascaridia galli (11,7%), Heterakis sp. (8,3%), with the range of infection degree classified as low infection (0-500 EPG), while the examination results of highlands showed that 44% (33/75) ducks checked infected by two worm species of nematoda, which is Ascaridia galli (17,3%), Heterakis sp. (10,7%) and one species of trematoda, which is Echinostoma sp. (6,7%), with the range infection degree classified low infection (0-500 EPG). it can get both single or mix infection. The analysis result has shown that there was differences between lowlands and highlands on the prevalence and infection disease degree of worm gastrointestinal on duck, was highly significant (p<0,05).
APLIKASI BEBERAPA INOKULAN Rhizobium DAN INTERVAL PEMOTONGAN HIJAUAN PAKAN TERNAK Stylosanthes guyanensus TERHADAP KANDUNGAN NITROGEN TANAH DI LAHAN KERING Rochiman, Kusriningrum
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 1 No 2 (1995): December 1995
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.339 KB) | DOI: 10.23869/175

Abstract

This research on discovering compatible Rhizobium inoculum for Stylosanthes guyanensis, the influence of defoliation interval on forage and the influence of interaction between inoculum and defoliation interval on nitrogen content in dry land had been conducted in Ranuklindungan Village, Grati, Pasuruan since July 1993 until November 1994. This experiment used factorial with randomized block design, with two factor (Rhizobium inoculum : without inoculum, inoculum of Stylosanthes guyanensis planted soil, legin of Leguminosae Cover Crops (Calopogonium mucunoides), Legin of Glycine max ; and defoliation interval ; without interval defoliation, 40 days defoliation interval, 60 days defoliation interval, and three replications. The inoculation which was manifested on nodule formation influences the nitrogen content in soil on 12 month old. Stylosanthes guyanensis with the best result on inoculation of Stylosanthes guyanensis planted soil. The defoliation interval doesn't influence the nitrogen content in soil. There are no interaction between inoculum and defoliation interval on nitrogen content in soil. The 4-8 month-old Stylosanthes guyanensis need supplementary nitrogen of soil media, the 8-12 month-old ones can increase nitrogen content of soil media up to 17.39 % by inoculation of Stylosanthes guyanensis planted soil and up to 12.58 % by 60 days defoliation interval.
Co-Authors Bambang Sugiharto Effendi, Mustofa Helmi Endang Suprihati Gunawan Sukarso Mirzawan PDN Permatasari, Dian Ayu Restiadi, Tjuk Imam Sosiawati, Sri Mumpuni Suyoto Hadisaputro