Identifikasi Nematoda pada Lahan Kebun Raya Banua Banjarbaru, Kalimantan Selatan

BIOSCIENTIAE ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 76
Author(s):  
Auliya Hanifa Permata ◽  
Dewi Fitriyanti ◽  
Abdul Gafur
Keyword(s):  
Soil Samples ◽  
Soil Nematodes

This research is to identify soil nematodes in Kebun Raya Banua in the province of South Kalimantan. Soil samples were taken to a depth of 0-20 cm. Nematodes extraction were conducted using Whitehead and Hemming method. Nematodes were killed by hot formaline. Permanent slides were prepared using Seinhorst (1962) method. Identification was carried out using a microscope with up to 1000x magnification. Two genera of the Order Dorylaimida (Aporcelaimellus and Xiphinema), one genus of the Order Monochida (Iotonchus), and one genus of the order Tylenchida (Criconema) were found.

scholarly journals Identifikasi Nematoda Tanah Pada Perkebunan Sawi (Brassica juncea L.) di Kelurahan Landasan Ulin Utara, Banjarbaru, Kalimantan Selatan

2020 ◽  
Vol 2 (2) ◽  
pp. 41-46
Author(s):  
Yusinta Oktaviani ◽  
Abdul Gafur
Keyword(s):  
Species Diversity ◽  
Brassica Juncea ◽  
Soil Samples ◽  
Soil Biota ◽  
Soil Nematodes ◽  
Morphometric Measurements ◽  
Mustard Plant ◽  
High Species Diversity ◽  
Different Types ◽  
Identification Stage

Nematodes are microscopic worms belonging to the soil biota with high species diversity. Nematodes have different compositions in different types of soil and areas. This research is conduct to determine the presence and genus of soil nematodes found in mustard plantations in Landasan Ulin Utara Village, Banjarbaru, South Kalimantan. Soil samples are taken from community vegetable plantations with a depth of 0-20 cm around the mustard plant rhizosphere located in ??Jalan Kurnia and Jalan Sukamara, Landasan Ulin Utara Village, Banjarbaru. Extraction to separate nematodes from soil using the Whitehead & Hemming method (1965) and nematode fixation using the Seinhorst method (1959). Furthermore, the permanent nematode preparations were made for the identification stage by morphological observations and morphometric measurements. The identification results showed that the genera of nematodes found in the study site's soil samples were Iotonchus, Crustorhabditis, Ironus, and Xiphinema.

scholarly journals Fungi associated with free-living soil nematodes in Turkey

2015 ◽  
Vol 67 (4) ◽  
pp. 1173-1183
Author(s):  
Salih Karabörklü ◽  
Abdurrahman Ayvaz ◽  
Semih Yilmaz ◽  
Ugur Azizoglu
Keyword(s):  
Phylogenetic Trees ◽  
World Wide ◽  
Large Subunit ◽  
Soil Samples ◽  
Soil Types ◽  
Soil Nematodes ◽  
Free Living ◽  
Fungal Strains

Free-living soil nematodes have successfully adapted world-wide to nearly all soil types from the highest to the lowest of elevations. In the current study, nematodes were isolated from soil samples and fungi associated with these free-living soil nematodes were determined. Large subunit (LSU) rDNAs of nematode-associated fungi were amplified and sequenced to construct phylogenetic trees. Nematode-associated fungi were observed in six nematode strains belonging to Acrobeloides, Steinernema and Cephalobus genera in different habitats. Malassezia and Cladosporium fungal strains indicated an association with Acrobeloides and Cephalobus nematodes, while Alternaria strains demonstrated an association with the Steinernema strain. Interactions between fungi and free-living nematodes in soil are discussed. We suggest that nematodes act as vectors for fungi.

scholarly journals Detection of plant parasitic nematodes in the soil of crop field in Meiktila area, Myanmar

2017 ◽  
Vol 1 ◽  
pp. 258
Author(s):  
Ni Ni Myint ◽  
Yu Yu Aye ◽  
Yu Yu Aung ◽  
Saw Bawm
Keyword(s):  
Soil Samples ◽  
Parasitic Nematodes ◽  
Soil Nematodes ◽  
Plant Parasitic Nematodes ◽  
Crop Fields ◽  
Crop Field ◽  
Plant Parasitic

The occurrence of soil nematodes from groundnut and chilli crop fields were investigated during the period from November 2013 to February 2014. From the collected soil samples, 13 genera belonging to seven families of three orders under two classes were recorded. Among the observed genera, Meloidogyene, was found to be the predominant on the soil samples of both groundnut and chilli crop fields. Moreover, Meloidogyene, Heterodera and Helicotylenchus were found with prominent values of 138, 92 and 85, respectively and occurred in 16%, 11% and 10% of all soil samples, respectively. Paratrichodorus was found to be the lowest in numbers 27 (3%). The data from recent study indicated that the soil samples of groundnut crop field showed higher incidence of nematodes (57%) than that of chilli crop field (43%).

scholarly journals Parazitické nematódy rastlín a voľne žijúce pôdne nematódy vo vybraných lesných škôlkach Slovenska

2013 ◽  
Vol 59 (4) ◽  
pp. 264-275
Author(s):  
Marek Renčo
Keyword(s):  
Quercus Robur ◽  
Higher Plants ◽  
Slovak Republic ◽  
Soil Samples ◽  
Soil Nematodes ◽  
Trophic Groups ◽  
Survey Results ◽  
Forest Nurseries ◽  
Plant Feeders ◽  
Nematode Fauna

Abstract The paper presents the results from the analysis of the 45 soil samples collected in 2010 from ten forest nurseries located at different regions of Slovak Republic. In total, 142 species of nematodes belonging to 87 genera were found. Out of them, 32 species are considered as plant feeders - parasites of higher plants, 11 species belong to fungal feeders, 10 species to root-fungal feeders, 8 species of predatory nematodes, 20 species of omnivorous nematodes and 49 species of bacteriovorous nematodes. The highest number of species was found in the Picea abies (94) and Quercus robur (80) rhizosphere. The survey results showed that communities of soil nematodes in forest nurseries are represented by all trophic groups of nematodes, but bacteriovorous, phytophagous and phyto-mycophagous nematodes prevailed and represented about 80% a total nematode fauna of coniferous and deciduous seedlings. The species of Acrobeloides nanus, Cephalobus persegnis, Rhabditis sp. juv.¸ Mesorhabditis sp.juv., Helicotylenchus digonicus, Paratylecnhus bukowensis, Trichodorus sprasus, Filenchus vulgaris, Malenchus exiguus, Tylencholaimus mirabilis, Tylencholaimus stecki belong to the most abundant at this study.

K-MEANS CLUSTERING ALGORITHM BASED CLASSIFICATION OF SOIL FERTILITY IN NORTH WEST NIGERIA

2020 ◽  
Vol 4 (2) ◽  
pp. 780-787
Author(s):  
Ibrahim Hassan Hayatu ◽  
Abdullahi Mohammed ◽  
Barroon Ahmad Isma’eel ◽  
Sahabi Yusuf Ali
Keyword(s):  
Soil Fertility ◽  
Crop Yield ◽  
Clustering Algorithm ◽  
Soil Samples ◽  
North West ◽  
R Programming ◽  
Available Information ◽  
Northwest Region ◽  
The Relationship

Soil fertility determines a plant's development process that guarantees food sufficiency and the security of lives and properties through bumper harvests. The fertility of soil varies according to regions, thereby determining the type of crops to be planted. However, there is no repository or any source of information about the fertility of the soil in any region in Nigeria especially the Northwest of the country. The only available information is soil samples with their attributes which gives little or no information to the average farmer. This has affected crop yield in all the regions, more particularly the Northwest region, thus resulting in lower food production.  Therefore, this study is aimed at classifying soil data based on their fertility in the Northwest region of Nigeria using R programming. Data were obtained from the department of soil science from Ahmadu Bello University, Zaria. The data contain 400 soil samples containing 13 attributes. The relationship between soil attributes was observed based on the data. K-means clustering algorithm was employed in analyzing soil fertility clusters. Four clusters were identified with cluster 1 having the highest fertility, followed by 2 and the fertility decreases with an increasing number of clusters. The identification of the most fertile clusters will guide farmers on where best to concentrate on when planting their crops in order to improve productivity and crop yield.

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

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