Brian Smart

Registration of oilseed sunflower maintainer germplasm HA 489 with resistance to the banded sunflower moth

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 […]

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Registration of oilseed sunflower maintainer germplasm HA 488, with resistance to the red sunflower seed weevil

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

Registration of oilseed sunflower maintainer germplasm HA 488, with resistance to the red sunflower seed weevil Read More »

Gene banks for wild and cultivated sunflower genetic resources

Streten Terzic, Marie-Claude Boniface, Laura Marek, Daniel Alvarez, Karin Baumann, Vera Gavrilova, Maria Joita-Pacureanu, Mulpuri Sujatha, Daniela Valcova, Leonardo Velasco, Brent S Hulke, Siniša Jocic, Nicholas Langlade, Stephane Munos, Loren Rieseberg, Gerald Seiler, Felicity Vear. Abstract: Modern breeding of sunflower (Helianthus annuus L.), which started 100 years ago, increased the number and the diversity of cultivated

Gene banks for wild and cultivated sunflower genetic resources Read More »

Capitate Glandular Trichomes Fail to Provide Significant Resistance to Banded Sunflower Moth (Lepidoptera: Tortricidae)

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

Capitate Glandular Trichomes Fail to Provide Significant Resistance to Banded Sunflower Moth (Lepidoptera: Tortricidae) Read More »

Field evaluation of early maturing oilseed sunflower double-cropped after winter camelina

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

Field evaluation of early maturing oilseed sunflower double-cropped after winter camelina Read More »

Seed and floret size parameters of sunflower are determined by partially overlapping sets of quantitative trait loci with epistatic interactions

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

Seed and floret size parameters of sunflower are determined by partially overlapping sets of quantitative trait loci with epistatic interactions Read More »

Assessment of the biogeographical variation of seed size and seed oil traits in wild Silphium integrifolium Michx. genotypes

Stephan Reinert, David Van Tassel, Brandon Schaultman, Nolan Kane, Brent Hulke Abstract: Silphium spp. have garnered interest in Europe as a bioenergy crop and in North America as a perennial oilseed crop. However, very little has been done at this early stage of domestication to characterize wild collections for many key characteristics, including important oilseed

Assessment of the biogeographical variation of seed size and seed oil traits in wild Silphium integrifolium Michx. genotypes Read More »

Registration of oilseed sunflower germplasms RHA 478, RHA 479, RHA 480, and HA 481, providing diversity in resistance to necrotrophic pathogens of sunflower

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

Registration of oilseed sunflower germplasms RHA 478, RHA 479, RHA 480, and HA 481, providing diversity in resistance to necrotrophic pathogens of sunflower Read More »

Registration of oilseed sunflower germplasms HA 482, RHA 483, and RHA 484, selected for resistance to Sclerotinia and Phomopsis

Brian C. Smart, Brady D. Koehler, Christopher G. Misar, Thomas J. Gulya, Brent S. Hulke Abstract: Sclerotinia diseases and Phomopsis stem canker, among the most serious diseases threatening the success of sunflower (Helianthus annuus L.) production across the world, have been of increasing concern in recent history, and there is a need for additional inbred lines

Registration of oilseed sunflower germplasms HA 482, RHA 483, and RHA 484, selected for resistance to Sclerotinia and Phomopsis Read More »

Registration of oilseed sunflower germplasms RHA 485, RHA 486, and HA 487, selected for resistance to Phomopsis stalk canker and Sclerotinia, in a high yielding and high-oil background

Kennedy L. Money, Brady D. Koehler, Christopher G. Misar, Michael Grove, William Underwood, Brent S. Hulke Abstract: While Sclerotinia head and basal stalk rot and downy mildew have long caused problems for the sunflower (Helianthus annuus L.) production industry, Phomopsis stem canker is a disease that is a growing issue in the United States. Our goal

Registration of oilseed sunflower germplasms RHA 485, RHA 486, and HA 487, selected for resistance to Phomopsis stalk canker and Sclerotinia, in a high yielding and high-oil background Read More »