peer-reviewed journal publication

Michael Kantar, Kevin Betts, Brent Hulke, Robert Stupar, Donald Wyse Abstract: Tubers of Helianthus tuberosus L. are dormant after production in the late fall until the next spring. In the wild, tuber dormancy is broken after exposure to winter cold, resulting in sprouting and shoot development in the spring when conditions are favorable. The dormancy period typically […]

Lili Qi, Thomas Jr. Gulya, Brent Hulke, Brady Vick Abstract: Sunflower rust, caused by the fungus Puccinia helianthi Schwein., was not a serious problem for many decades because of successful deployment of effective resistance genes in commercial sunflower (Helianthus annuus L.) hybrids in North America. In the 1980s and early 1990s, however, a shift in virulence of the

Jarrad Prasifka, Brent Hulke Abstract:  While occasional insect pests of cultivated sunflowers may be managed by conventional or reducedrisk insecticides, the cumulative costs and risks of relying on insecticides to suppress perennial or severe pests (common in North America) call for exploration of broader pest management strategies. Recent research with the sunflower moth (Homoeosoma

Lili Qi, Brent Hulke, Brady Vick, Thomas Jr. Gulya Abstract: Rust is a serious fungal disease in the sunflower growing areas worldwide with increasing importance in North America in recent years. Several genes conferring resistance to rust have been identified in sunflower, but few of them have been genetically mapped and linked to molecular markers.

Zahirul Talukder, Brent Hulke, Lili Qi, Thomas Jr. Gulya Abstract: The need for sunflower quantitative genetics research to find and capture Sclerotinia resistance is increasing with every year that this disease results in widespread losses in yield and crop quality. Our efforts to perform association mapping with the 260 Plant Introductions (PIs) obtained from the

Zahirul Talukder, Brent Hulke, Lili Qi, Thomas Jr. Gulya Abstract: Genetic research of the sunflower research unit, USDA-ARS, in Fargo, ND, was discussed in a presentation to a group of producers, industry representatives, and scientists. The need for sunflower quantitative genetics research to find and capture Sclerotinia resistance is increasing with every year that this

Michael Kantar, Kevin Betts, Robert Stuper, Brent Hulke and Donald Wyse Abstract: The objective of this research is to use current genetics and plant breeding techniques to introgress genes for perennial habit from Helianthus tuberosus L. (2n=6x=102) into domesticated sunflower (Helianthus annuus L., 2n=2x=34). H. tuberosusis part of the secondary gene pool of sunflower and

Anitha Chirumamilla, Laurence Charlet, Brent Hulke, R Aiken and Janet Knodel Abstract: Sunflower Helianthus annuus L. is one of the major oil seed crops grown in the USA. with a highest estimated cultivated acreage of 975,000 acres in North Dakota. Besides diseases and weeds, insects are one of the major causes for yield losses. An

Anitha Chirumamilla, Laurence Charlet, Brent Hulke, and Janet Knodel Abstract:  Entomology research of the sunflower research unit, USDA-ARS, in Fargo, ND, was discussed in a presentation to a group of producers, industry representatives, and scientists. There are 4 major insect pests for which we have no genetic resistance currently, and the goal of our work

Brent Hulke Abstract: Genetic research of the sunflower research unit, USDA-ARS, in Fargo, ND, was discussed in a presentation to a group of producers, industry representatives, and scientists. The need for sunflower genetic research is ever increasing with more insect and disease problems nationwide. Preliminary data on experimental hybrids to combat these problems was discussed.