News from IBSS

August 2015

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August 2015
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Aerial Insecticide Application on Columbus, MS Trial
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IBSS Annual Meeting

On behalf of the IBSS Executive Team, we would like to thank you for making the IBSS Annual Meeting so successful and valuable! We really appreciate you taking the time to participate in the meeting and poster session.

The meeting presentations are now available for download on the IBSS website:


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IBSS Teacher Workshop Completes Successful Week!
 
The Chemistry and Biology in Bioenergy Interdisciplinary Workshop for High School Teachers sponsored by IBSS recently took place at the University of Tennessee (July 13-17). The workshop was designed to assist teachers with their standards-based classroom curricula by incorporating bioenergy-related concepts into their classroom topics.
 
Teachers received hands-on training with classroom modules designed by IBSS team researchers. These modules were aimed at reinforcing core science concepts such as stoichiometry, the ideal gas law, biodiversity, and genetics, among others. The interdisciplinary research focus of IBSS team members created an ideal environment to engage teachers in a multi-faceted way. "I enjoyed how all aspects of the week reinforced each other. The focus was clear and very informative," wrote a workshop participant. (MORE)

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Publication Spotlight! 

Cultural Treatments for Accelerated Growth and Flowering of Panicum virgatum

Lisa W. Alexander, Ellen R. Haynes, Jason Burris, Samuel Jackson & C. Neal Stewart Jr.

Exploiting heterosis through hybrid breeding is essential to increase biomass yields of switchgrass (Panicum virgatum). However, life cycle timespan for clone evaluation for field evaluation is a major limitation to genetic selection. Methods & results: In an attempt to shorten the switchgrass life cycle timespan, we investigated the effect of four variables on the vegetative and reproductive morphology of the P. virgatum cultivar "Alamo": day length, temperature, container size, and application of plant growth regulators. Seedlings grew fastest and reached flowering fastest under 18 hours of daylight with growth being severely and mildly inhibited at 8 h and 23 h, respectively. Under the optimum (18 h) photoperiod, day temperature of 25°C led to the fastest growth and flowering whereas a 5°C increase or decrease inhibited growth and flowering. Within the 18 h/25°C treatment, 44% of plants flowered after 90 d and >15% of plants reached full anthesis or post-anthesis seed set. Conclusions: Allowing 45 d for seed set and 30 d for cold stratification, generation time for the post-anthesis plants grown in 18 h/25°C conditions is approximately 165 days, allowing for the production of two generations of switchgrass per year for accelerating germplasm development for this perennial bioenergy crop. (MORE)

Alexander, L.W., Haynes, E.R., Burris, J., Jackson, S., Stewart Jr, C.N. 2015. Cultural treatments for accelerated growth and flowering of Panicum virgatum. Biofuels 5: 771-780.

Images from the IBSS Annual Meeting - Drone Demonstration with PrecisionHawk
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The IBSS Partnership is supported by Agriculture and Food Research Initiative Competitive Grant no. 2011-68005-30410 from the USDA National Institute of Food and Agriculture.
 
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