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114 results on '"Henry, Gerald M."'

3. List of contributors

Author

Ahmad, Taseer, primary, Ahmed, Sharif, additional, Batish, Daizy Rani, additional, Beckie, Hugh J., additional, Borger, Catherine P.D., additional, Brusa, Anthony, additional, Chaudhary, Ankur, additional, Chauhan, Bhagirath Singh, additional, Chuah, Tse-Seng, additional, Contreras, Diego J., additional, Dahiya, Sahil, additional, Davies, Laura, additional, Desai, Het Samir, additional, Dilipkumar, Masilamany, additional, Elmore, Matthew T., additional, Eslami, Seyed Vahid, additional, Everman, Wesley J., additional, Florentine, Singarayer, additional, Gannon, Travis W., additional, Geddes, Charles M., additional, Govindasamy, Prabhu, additional, Henry, Gerald M., additional, Humphries, Talia, additional, Jabran, Khawar, additional, Jasieniuk, Marie, additional, Jhala, Amit J., additional, Jones, Eric A.L., additional, Kaur, Amarpreet, additional, Kaur, Shalinder, additional, Kaur, Simerjeet, additional, Khalsa, Gurpreet Singh, additional, Kohli, Ravinder Kumar, additional, Kumar, Virender, additional, Moss, Stephen Richard, additional, Narayana Rao, Adusumilli, additional, Newcombe, George, additional, Olsen, Kenneth M., additional, Qiang, Sheng, additional, Royo-Esnal, Aritz, additional, Sarangi, Debalin, additional, Singh, Harminder Pal, additional, Song, Beng-Kah, additional, Squires, Caleb C., additional, Taab, Alireza, additional, Tidemann, Breanne D., additional, Torra, Joel, additional, Walsh, Michael J., additional, and Ward, Sarah, additional

Published
2021
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18. Asymmetric responses of Paspalum species to a soil moisture gradient

Author

Henry, Gerald M., Yelverton, Fred H., and Burton, Michael G.

Subjects
Grasses -- Environmental aspects, Grasses -- Growth, Growth (Plants) -- Research, Soil moisture -- Environmental aspects, Company growth, Agricultural industry, Business
Abstract

Anecdotal evidence suggests that dallisgrass (Paspalum dilatatum Poir.) and bahiagrass (Paspalum notatum Fluegge), two of the most troublesome weed species in managed turfgrass, are both drought and flood tolerant. Water table depth gradient tanks were employed to identify habitat specialization and competitive differences between dallisgrass and bahiagrass. Shoot and rhizome final biomass and survival were used as metrics for plants grown in monoculture or competition with hybrid bermudagrass (Cynodon transvaalensis Burtt Davy x C. dactylon (L.) Pers. 'Tifway 419') in sand or sandy loam soil. Shoot and rhizome growth of dallisgrass was greatest at the levels of highest soil moisture within each gradient tank regardless of soil type or competition. Percent survival of dallisgrass decreased to a low of 50% as depth to water table increased when grown as a monoculture and 12.5% when grown in competition with hybrid bermudagrass. Percent survival of bahiagrass was 100% regardless of water table depth, soil type, or competition. Shoot and rhizome growth of bahiagrass was greatest as depth to water table increased when grown in sandy loam soil. The opposite trend was observed when grown in sandy soil. Results suggest that dallisgrass may be more competitive with hybrid bermudagrass when volumetric soil moisture is high, while bahiagrass may be more competitive when volumetric soil moisture is low.

Published
2009

21. Evaluation of herbicide programs for the control of knotroot foxtail [Setaria parviflora(Poir.) Kerguélen] in bermudagrass pasture

Author

Dyer, Logan M., Henry, Gerald M., McCullough, Patrick E., Belcher, Jason, and Basinger, Nicholas T.

Abstract

AbstractKnotroot foxtail has become more prevalent and problematic in pastures and hayfields in the southeastern United States. Gaps exist in our knowledge of which herbicide practices are best for managing this species in bermudagrass forage production. This study was conducted to determine the efficacy of various ways to control knotroot foxtail in bermudagrass with herbicide applications in autumn, postemergence (POST), with and without also applying a herbicide in preemergence (PRE), in spring. The study was a randomized complete block with a factorial arrangement of treatments and included a nontreated control for both fall and spring timings. Glyphosate at two rates (0.35 or 0.7 kg ae ha−1), nicosulfuron (0.07 kg ai ha−1) + metsulfuron (0.012 kg ai ha−1), and hexazinone (1.3 kg ai ha−1) were applied alone in the fall or followed by indaziflam (0.067 kg ai ha−1) or pendimethalin (4.46 kg ai ha−1) in the spring. Three harvests were conducted throughout the growing season to evaluate weed species (knotroot foxtail, large crabgrass, and horsenettle) and bermudagrass biomass as well as overall species composition. The combination of fall and spring treatments did not affect weed species or bermudagrass biomass. Therefore, treatment main effects were analyzed by fall or spring application timing. A spring application of either pendimethalin or indaziflam increased bermudagrass biomass compared with that of the nontreated control. However, neither PRE herbicide effectively reduced knotroot foxtail biomass compared with the nontreated control, although pendimethalin did reduce season-long knotroot foxtail composition. Spring PRE herbicides are an effective tool for forage producers, but further research is needed to identify effective herbicides and additional approaches for the control of knotroot foxtail.

Published
2024
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