Reza Farrokhi-Nejad

Shahid Chamran University of Ahvaz | scu · Deprtment of Plant Protection

Introduction: This research was conducted with the aim of isolating and identifying cowpea root and crown pathogens in Khuzestan province. In addition, the antifungal effectiveness of nine selected strains of five Trichoderma species was surveyed on four root and crown pathogens of cowpea. Materials and Methods: Out of twenty strainsobtained, four...

Background and objective Date palm Phoenix dactylifera L. is one of the income sources of cultural and economic importance in several countries. Leaf wilt disease is one of the important diseases observed in palm gardens in Khuzestan province. Disease symptoms are observed as asymmetrical leaves drying. Fusarium proliferatum is a common pathogen in...

Background and Objectives: The root-knot nematode is an obligatory plant parasite that attacks a large number of vascular plants worldwide and is economically important. The present study aimed to identify the Meloidogyne javanica species based on morphological, morphometric data and molecular characterization. Materials and Methods: During a surve...

Basiria khouzestanensis n. sp., recovered from the rhizosphere of orange in Khouzestan Province, south-western Iran, is described and illustrated based on morphological, morphometric and molecular data. The new species is characterized by having short body length (430-635 µm), lateral fields composed of four incisures, with non areolated bands, cep...

Since 2015, a leaf disease showing necrotic, oval to irregular, pale brown spots with darker border had been observed on purslane in Khuzestan province, Iran. Symptomatic plants were collected and conducted to laboratory where five isolates were obtained. Based on a phylogenetic analyses using ITS and rpb2 regions, in combination with morphological...

Anthracnose is a general term for sunken lesions and blights on stems, leaves and fruits and causes economic damage to agricultural products. This study conducted to identify Colletotrichum species associated with anthracnose symptoms on some plants in Khuzestan Province using morphological and molecular methods. During 2016–17, forty leaf and frui...

Abstract During 2015–2016, wooden and herbaceous plants growing in parks, boulevards, fields, gardens and forests in Khuzestan province, southwestern Iran, were visually inspected for symptoms resembling phytoplasma. Fifty-one symptomatic samples from nine different species and one symptomless sample from each plant were collected. Leaf midribs, pe...

Sugarcane plant samples affected by the disease pokkah boeng were collected from the major sugarcane producing areas in Iran. Fifty isolates of Fusarium verticillioides were recovered from diseased sugarcanes. Results of pathogenicity tests revealed that all isolates were pathogenic to sugarcane. Four hundred and eighty-five nitrate non-utilising m...

The purpose of this study was to determine the diversity and prevalence of Fusarium species in a survey of cereal and grassland systems from the South Island of New Zealand by applying morphological and molecular techniques. Isolates were collected from soil, roots, and stems from 21 cereal and grassland sites. Ten Fusarium species were identified...

In this investigation, survival of the teliosporogenous mycelia in 6, 7, 8 and 9 months old bunted kernels which had been infected artificially in the laboratory was examined. The sorus of each treatment was crashed in sterile distilled water and the suspension was placed on the surface of sterile distilled water in a completely randomized design w...

A total of 58 isolates of Rhizoctonia spp. (46 R. solani and 12 binucleate Rhizoctonia) were recovered from potato tubers showing black scurf disease symptom during the 2004 growing season in Lincoln, New Zealand. The isolates were assigned to 5 Anastomosis Groups (AG) ofR. solani AG-3 (54.34%), AG-5 (28.26%), AG-8 (8.69%), AG-4 (6.52%) and AG-2-2...

To elucidate the mode of penetration of N. indica into the host, five wheat cultivar/lines including a susceptible cultivar (WL711), a morphologically resistant line (R1: Altar 84 CD22344-A-8M-1Y-1M-1Y-2Y-1M-0Y) and three physiologically resistant lines (R2: 6811/RGB-U//WARD/3/FGO/4/RABI/5/CIGM89. 564-0Y; R3: CMH84.1106CMH84.1106-1Y-6B-1Y-2B-2Y-2B-...

In order to determine Fusarium diversity associated with spikes and grains of wheat, this study was conducted. Samples were taken from plants showing head scab symptoms and wheat grains that had been collected from different growing areas in Khuzestan, during growing seasons in 2002-2004. After being surface sterilized, samples from head and grains...

Several Fusarium species are associated with wheat stems in New Zealand, but there are no detailed reports on the relative abundance and distribution of these species. Hence, a survey was conducted on the South Island of New Zealand to assess the frequency of isolation of Fusarium species associated with randomly collected wheat stem bases and seve...

During growing seasons of 2001-2002 this study was conducted to investigate and determine the Fusarium spp. associated with foot and root of faba bean in Khuzestan province. Samples were collected from infected plants from different fields in different regions of Khuzestan including Ahwaz, Soosangerd, Behbahan, Aghili, Shooshtar, Dezful, Sefiabad,...

Thesis (Ph. D.)--Colorado State University, 1993. Includes bibliographical references.