Sunflower

Authors: Michelle A. Gilley, Thomas J. Gulya, Gerald J. Seiler, William Underwood, Brent S. Hulke, Christopher G. Misar, and Samuel G. Markell Publication Date: September 21, 2020 Abstract: Downy mildew, caused by Plasmopara halstedii (Farl.) Berl. and de Toni, is an economically important disease in cultivated sunflowers, Helianthus annuus L. Resistance genes incorporated into commercial hybrids are used as […]

Authors: Chris C R Smith, Loren H Rieseberg, Brent S Hulke, Nolan C Kane Publication Date: September 8, 2020 Abstract: Alternative spicing is an integral part of gene expression in multicellular organisms that allows for diverse mRNA transcripts and proteins to be produced from a single gene. However, most existing analyses have focused on macro-evolution,

Authors: Cloe S. Pogoda, Stephan Reinert, Zahirul I. Talukder, Ziv Attia, Jason A. Corwin, Kennedy L. Money, Erin C.E. Collier-zans, William Underwood, Thomas J. Gulya, C. Alisha Quandt, Nolan C. Kane, Brent S. Hulke Publication Date: July 16, 2020 Abstract: Host-microbe interactions are increasingly recognized as important drivers of organismal health, growth, longevity, and community-scale

Adam R. Wronski, Jarrad R. Prasifka, Michael S. Grove, Brady D. Koehler, Christopher G. Misar, William Underwood, Brent S. Hulke Abstract: The banded sunflower moth is one of the most pervasive insect pests of sunflower (Helianthus annuus L.) in North America, in large part due to its ability to overwinter in cold climates. The goal

Michael G. DeGreef, Jarrad R. Prasifka, Brady D. Koehler, Brent S. Hulke Abstract: Sunflower (Helianthus annuus L.), as a native crop, has numerous insect pests that cause economic damage to producers in the United States. The red sunflower seed weevil is a notable seed‐infesting insect pest throughout the U.S. sunflower growing region that is controlled

Jarrad R. Prasifka, and Brent S. Hulke Abstract: Extracts from capitate glandular trichomes (CGT) of wild and cultivated sunflowers, Helianthus spp., have repellent or toxic effects on sunflower specialists and generalist herbivores less closely associated with sunflower. Though CGT have been primarily examined for their potential to provide partial resistance to the sunflower moth, Homoeosoma electellum Hulst

Russell Gesch, Brent Hulke, James Anderson Abstract: In the northern Great Plains and upper Midwestern U.S., incorporation of winter-hardy crops and cover crops as components of integrated weed management systems is gaining popularity as an approach for managing the spread of herbicide resistance. However, to develop new rotational cropping systems suitable to these regions there

Reinert, S., Qing-Ming Gao, Ferguson, B., Zoe M. Portlas, Jarrad R. Prasifka, Brent S. Hulke. Abstract: Seed size is an important quality component in marketing commercial sunflower (Helianthus annuus L.), particularly for the in-shell confectionery market, where long and broad seed types are preferred as a directly consumed snack food globally. Floret size is also important

Brady D. Koehler, Thomas J. Gulya, Brent S. Hulke Abstract: Necrotropic pathogens such as Sclerotinia sclerotiorum (Lib.) de Bary (causing Sclerotinia head and stalk rots) and Diaporthe spp. (causing Phomopsis stem cankers) have resulted in yield loss for the sunflower (Helianthus annuus L.) industry. The combination of durable disease resistance and high yield potential is needed for increasing crop productivity