Intiaz Amin Chowdhury

North Carolina State University | NCSU

Two greenhouse experiments were conducted with the new species of root-lesion nematode, Pratylenchus dakotaensis, discovered in North Dakota, USA in 2017 and named in 2021. Experiment 1 was conducted to ascertain resistance levels of soybean [Glycine max (L.) Merr.] cultivars to the new species P. dakotaensis and Experiment 2 was conducted to evalu...

A rapid and accurate PCR-based method was developed in this study for detecting and identifying a new species of root-lesion nematode (Pratylenchus dakotaensis) recently discovered in a soybean field in North Dakota, USA. Species-specific primers, targeting the internal transcribed spacer region of ribosomal DNA, were designed to be used in both co...

Soybean cyst nematode (SCN; Heterodera glycines) continues to be the greatest threat to soybean production in the United States. Since host resistance is the primary strategy used to control SCN, knowledge of SCN virulence phenotypes (HG types) is necessary for choosing sources of resistance for SCN management. To characterize SCN virulence phenoty...

Root-lesion nematodes (Pratylenchus spp.) of the genus Pratylenchus Filipjev, 1936, are among the most important nematode pests on soybean (Glycine max (L.) Merr.), along with soybean cyst and root-knot nematodes. In May 2015 and 2016, a total of six soil samples were collected from a soybean field inWalcott, Richland County, ND and submitted to th...

Plant-parasitic nematodes (PPN) can negatively affect corn production. In this study, incidence and abundance of PPN were assessed in 300 corn fields across 20 counties in North Dakota during 2015 and 2016. Seventy-two percent of the fields were positive for PPN. The major genera identified were Helicotylenchus (incidence: 52%; mean density: 1513 n...

Plant-parasitic nematodes (PPN) are an important group of pathogens that affect corn production in the United States. However, extent of impact of these nematodes on yield is influenced by soil properties, climatic factors and nematode populations. In the neighboring state of South Dakota, root-lesion nematodes were reported to cause yield loses of...

Root-lesion nematodes (RLN; Pratylenchus spp.) are important pests on soybean (Glycine max (L.) Merr.). In May 2015 and 2016, six soil samples were collected from a soybean field in Walcott, Richland County, ND. Nematodes were extracted from soil using sugar centrifugal flotation. All the samples contained RLN from 125 to 2,000 per kg soil. One soi...

Soybean cyst nematode (SCN) is responsible for the greatest yield loss to soybean production in the U.S. To assess the prevalence of SCN in North Dakota, soil samples were collected in 2015 and 2016 from soybean fields or fields with a history of SCN across 14 counties. To characterize the virulence phenotypes of SCN in infested fields, HG type bio...

In July 2016, irregular patches of stunted and yellowed plants were observed and reported by a grower in a commercial dark-red kidney bean (Phaseolus vulgaris L. cv. Red Rover) field in Sherburne County, Minnesota. Examination of root tissue revealed many white to yellow females, similar to soybean cyst nematode (SCN). The previous crop in 2015 was...