Pengaruh Beberapa Biak Rhizobium Terhadap Pertumbuhan, Pembentukan Bintil Dan Kegiatan Penambatan Nitrogen Padatanaman Erythrina Orientalis

YUN INDIARTO, MULYADI & RAZALI YUSUF, 1989.The structure and composition of mangrove in Bikoen-Kupang,Timor.Berita Biologi 3(9): 455 - 457.Mangrove forests in EastNusa Tenggara cover a total areas of about 1930 ha(Darsidi, 1984). Little is known about the mangrove forest in that island, especially in Bikoen, Kupang Region.Therefore, the study has been conducted at the mangrove forest of Menipo Nature Reserve in order to analyse the structure and composition of the species.Four transects perpendicular to the coast line were used for data collection.At least, there were 12 mangrove species found in the forest, dominated by Ceriops tagal, Rhizophora stylosa and Bruguiera exaristata. Seedlings dominated the forest by 49,92%, where as the sapling were 45.43%

Pengaruh Pupuk Terhadap Pertumbuhan Azolla

Di antara tumbuhan air yang biasa terdapat di sawah, Azolla (yang dalam bahasa daerah disebut lukut cai, kiapu, bang apu atau kiambang) merupakan salah satu tumbuhan yang mempunyai keistimewaan tersendiri karena kemampuannya dalam menambat nitrogen. Dalam keadaan yang optimal tumbuhan paku air ini dapat menambat nitrogen sebesar 7,2 mg N/g berat kering/hari (Brotonegoro & Abdulkadir 1976). Kemampuan ini dapat menerangkan mengapa Azolla dapat tumbuh dan memperbanyak did pada perairan yang kurang subur. Di samping mampu menambat nitrogen, Azolla dapat terurai dengan melepaskan senyawa N dalam tanah yang lembab atau tergenang (Brotonegorp & Abdulkadir 1978). Senyawa N yang dilepaskan tadi dapat diserap oleh tanaman padi atau tanaman lainnya, sehingga Azolla telah dipakai sebagai pupuk hijau di Vietnam dan Muangthai (Saubert 1949; Moore 1969). Untuk itu diperlukan Azolla dalam jumlah yang besar, sebab tumbuhan ini mengandung air sekitar + 95% berat basahnya dan kandungan N- totalnya sekitar ±3-5% berat keringnya.Keperluan yang besar itu mungkin dapat terpenuhi jika keadaan pertumbuhannya di sawah, parit dan danau sebaik beberapa tahun yang silam. Di Jawa khususnya, sejak beberapa tahun terakhir ini populasi Azolla menurun sangat menyolok. Sekarang untuk mendapatkan populasi Azolla yang melimpah dan terhampar menyerupai permadani sukar sekali

Respon Pertumbuhan Tanaman Kacang Hijau Varietas Walet Terhadap Pemberian Inokulan Rfflzobium Dan Mikoriza Di Lahan Masam* [Growth Responses of Mungbean Var. Walet to the Application of Rhizobium and Mycorrizha Inoculants in Acid Soil]

The study on the growth response of mungbean Walet variety inoculated by Rhizobium and VA-Mycormiza inoculant carried out done at UPT-BBOK-UPI, Bergen, Lampung, using Competely Randomized Block Design. Five treatments by using Rhizobium, 5 treatments by using mixed Rhizobium and Myco.rrhiza, 1 treatment by using Mycorrhiza. The plant, without inoculated and without fertilized, the plants without inoculated but fertilized by using urea, the plants without inoculated but fertilized by using TSP, and the plants without inoculated but fertilized by using urea and TSP as control. Each treatment has 3 replications. The height and the weight of the plants, the weight of nodules had been weighted after 30 days planting. The result of the research showed that the plants by giving inoculant better growth compare to the plants without inoculated and fertilized. The weight of plants and root is compered which the plants by giving Rhizobium and Mycorrhiza to the plants without inoculated and fertilized was not significant. However, in the height and the wight of nodules of some treatments were significant to the control

Distribution pattern of some heavy metals in the dust particulates of Funtua Textile Limited, Katsina, Nigeria

The sequential extraction of Cd, Cr, Cu, Ni, and Pb in industrial dust particulates collected in ten different sections/Departments of Funtua textile limited and the control site from Dikke village was carried out in order to ascertain the percentage of bioavailable fractions. Analyses of metals in the extracts were done using Flame Atomic Absorption Spectrometry (FAAS). The sequential extractions showed that significant amount of Cu25.87(O1) to 92.73% (E1) was associated with non-residual and 0.09 (E1) to 56.94% (O2) organic bound fractions; similarly, Cd was also associated with the non- residual fractions across the sites with values 42.22(W2) to 97.78% (E2). Cr and Ni exhibited the highest percentage of 73.46(W1) to 100.00 % (W2) and 23.64 (E2) to 77.26 % (S1), respectively. Pb in the particulate dust samples was significantly associated with the non-residual fraction and carbonate bound fraction with range of 21.71(D)–61.68(S2) % across the sites. This study revealed contamination of the particulates dust especially with Cu, Cr and Pb; this implies health risks to human, living or carrying out daily activities along the corridors of this industry.Keywords: Flame Atomic Absorption Spectrometry, Funtua textile, Heavy metals, Particulates dust, Sequential extractio

Effects of petroleum ether, ethanol and aqueous extracts of indigofera capitata on oedema induced activity of naja nigricollis venom in envenomed rats

The growing demand for herbal products has led to high increase of plant material traded across the world. Indigofera species provide some of these plants’ materials. Indigofera capitata is a plant of the family Fabaceae. The acute toxicity and effects pet.ether, ethanol and aqueous extracts of the plant were carried out in albino rats. The results of acute toxicity studied revealed that pet.ether, ethanol and aqueous extracts had LD50 values of 774.6, 1131.4 and 3807.8mg/kg respectively. These helped to determine the safeness and dosage used for in vivo activity of each extract. The results of the effects of the extracts indicated all the plant extracts had significant (p<0.05) and dose-dependent Oedema forming activity against LD99 Naja nigricollis envenomed rats. Highest reduction in edema forming activity of the extract are shown at dose of 300mg/kg(ethanol) and 1000mg/kg (aqueous) with lowest edema forming activity of 108.00±1.90 and 102.00±1.90 (% mm) respectively compared with the positive control group. The finding revealed that the plant can be used for treatment of snake bite more especially Naja nigricollis bite

On Measuring the Criticality of Various Variables and Processes in Organization Information Systems: Proposed Methodological Procedure

This paper proposes methodological procedures to be used by the accounting, organizational and managerial researchers and executives to ascertain the criticality of the variables and the processes in the measurement of management control system. We have restricted the validation of proposed methods to the extraction of critical success factors (CSF) in this study. We have also provided a numerical illustration and tested our methodological procedures using a dataset of an empirical study conducted for the purpose of ascertaining the CSFs. The proposed methods can be used by the researchers in accounting, organizational information systems, economics, and business and also in other relevant disciplines of organizational sciences. The main contribution of this paper is the extension of Rockart’s work [33] on critical success factors. We have extended the theory of CSF beyond the initially suggested domain of information into management control system decision making. The methodological procedures developed by us are expected to enrich the literature of analytical and empirical studies in accounting and organizational areas where it can prove helpful in understanding the criticality of individual variables, processes, methods or success factors.Success Factors, Criticality Analysis, Perceptual Criticality, Critical Success Factors

Keefekttfan Beberapa Biak Rhizobium Sebagai Inokulan Pada Pertumbuhan Albizia Procera Dan a. Saponaria

HJ.D. LATUPAPUA,S.H. RAHAJU & S.ABDULKADIR.1988. The effectiveness of some rhizobial strains as inoculants on the growth of Albizia procera and A. saponaria.Berita Biologi 3(8) 405 - 412.Four experiments have been carried out under green house conditions,using 0.5 gallon plastic pots, filled with 1.5 kg of sterile sands.The experimental design was completely randomized design with five replications.The first and second experiments were implemented on A.procera which consisted of 11 and 9 strains, lasted in 10 weeks respectively.The third and the fourth used 7 strains for each experiment,were implemented on A.saponaria,lasted in 12 and 16 weeks respectively.The results showed that all inoculated plants produced root nodules. In the experiments I and H,good results were demonstrated by strains number 34, 85 and 119, while strain Rsg showed very poor results.Rhizobium which showed poor results were strains Raf 1,Raf 2, Rap, Rss, Ri and Le. In the experiments III and IV, good results were demonstrated by strains 82 and 85,while very poor results were shown by strains Cg and Ri, poor results were shown by strains 34, 119 and Le

An excel template for processing examination results for higher institutions in Nigeria

In this work, we designed, developed and implemented an examination result processing template for all the Postgraduate programmes in the Faculty of Science, Kaduna State University, Kaduna. The designed template when fed in with data computes and grades students appropriately. Its design was done using the “IF” and “OR” logical functions. It was deployed and tested for the performance in terms of accuracy and speed, and as attested by the end users, it is excellent.Keywords: MS Excel, “IF”, “OR”, Template, Examination, Grade, GP