scholarly journals Identification of Plant-Parasitic Nematodes on Carrot in Malino Highland, South Sulawesi Based on Morphological and Morphometric Characters

2015 ◽  
Vol 11 (3) ◽  
pp. 85-90 ◽  
Author(s):  
Hishar Mirsam ◽  
◽  
Supramana Supramana ◽  
Gede Suastika
2016 ◽  
Vol 9 (1) ◽  
pp. 44-50
Author(s):  
S. Azimi ◽  
E. Mahdikhani-Moghadam ◽  
H. Rouhani ◽  
H. Rajabi Memari

Summary During a survey in Iran, two known species of plant-parasitic nematodes of the families Tylenchidae and Criconematidae were reported for the first time. The morphological and morphometric characters of Iranian populations of the two recovered species are discussed and illustrated based on morphological and morphometrics data. Iranian population of Filenchus orientalis is characterized by having a 601-755μm body length, stylet length of 9.0-11.3 μm, lateral field with four incisures, tail length of 100-118 μm and males with 15-21 μm long spicules. Hemicriconemoides californianus population is characterized by having a body length of 430-550μm, lip region with two annuli, stylet length of 75-83μm and tail length of 20-28 μm. The morphological and morphometric characters of both species are in agreement with those in original descriptions.


2020 ◽  
Vol 21 (6) ◽  
Author(s):  
Hishar Mirsam ◽  
AMRAN MUIS ◽  
NURNINA NONCI

Abstract. Mirsam H, Muis A, Nonci N. 2020. The density and diversity of plant-parasitic nematodes associated with maize rhizosphere in Malakaji Highland, South Sulawesi, Indonesia. Biodiversitas 21: 2654-2661. Plant-parasitic nematodes (PPNs) are one of the important pathogens, especially in tropical countries, including Indonesia. Nematodes can cause high yield losses and economic damage if not managed properly. This study aims to analyze PPN density in the vegetative phase of maize in the Malakaji Highland Gowa Regency, South Sulawesi. The sampling method was a diagonal sampling technique, done by taking samples at points along a diagonal line, which were the middle and fourth corners of the maize crop. Nematode extraction was done by the modified Baerman method. The density of parasitic nematode communities counted was absolute community density, relative community density, absolute frequency, relative frequency, frequency of all nematodes, and dominance values. Nematode identification was based on morphological characters. The highest PPNs density was found in two weeks old of maize planted area where the absolute community density reaching 618 and the dominance value of 61.80%. Age of maize plants is negatively correlated with PPNs community with a regression coefficient of (-3.85). So that it can be assumed that the older the age of maize plants, the lower the amount of PPNs. Five genera of plant-parasitic nematodes associated with the rhizosphere of maize plants were found, namely Helicotylenchus, Pratylenchus, Haplolaimus, Longidorus, and Xiphinema. In addition to parasitic nematodes, non-parasitic nematodes were also identified as having no stylet, namely Campydoroides, Mononchus, and Rhabditis.


2021 ◽  
Vol 13 (3) ◽  
pp. 18004-18010
Author(s):  
Manouchehr Hosseinvand ◽  
Ali Eskandari ◽  
Reza Ghaderi

A survey was conducted during 2018 and 2019 in order to identify plant-parasitic nematodes of the genus Basiria in Dezful region of Khuzestan province, southwestern Iran.  Nematodes were extracted from the soil and root samples by using tray method, transferred to glycerin and mounted on permanent slides.  Nematodes were identified based on morphological and morphometric characters.  As a result, eight species including B. aberrans, B. duplexa, B. gracilis, B. jirians, B. tumida, B. graminophila, B. ritteri, and B. similis were identified; three species namely B. jirians, B. ritteri, and B. similis are here described and illustrated for the first time from Iran.  B. jirians is characterized by body length 445–535 µm, stylet 9.0–9.2 µm, cephalic region without annuli, DGO 2.0–2.5 µm, median bulb at anterior end of pharynx, basal bulb pyriform, spermatheca non offset and tail elongate conoid with pointed to filiform terminus.  B. ritteri can be characterized by body length 685–747 µm, stylet 10.5–11.5 µm, median bulb located at anterior half of pharynx, basal bulb cylindroid, spermatheca non offset and tail annulated and notched at tip.  B. similis is characterized by body length 644–736 µm, stylet 10.3–11 µm, DGO 8.9–10.5 µm, basal bulb cylindroid and tail clavate.


EDIS ◽  
2017 ◽  
Vol 2017 (2) ◽  
pp. 8
Author(s):  
Zane Grabau

This 8-page fact sheet written by Zane J. Grabau and published in January 2017 by the UF Department of Entomology and Nematology explains how to diagnose and manage nematode problems in cotton production.­http://edis.ifas.ufl.edu/ng015


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