With increased interest in biofuel production, the conversion of agricultural lands (known to concentrate salts) as well as other marginal lands will be critical in establishing a switchgrass-based renewable biofuel industry. In this study three cultivars (Trailblazer, Cave-in-Rock, and Blackwell) of Panicum virgatum (switchgrass) were germinated in a NaCl gradient of 0.0, 0.0504, 0.1002, and 0.1546 molar solutions. Three replicates were run, lasting 20 days each, from September 2010 to November 2010. Each replicate consisted of six samples for each cultivar:concentration combination, for a total of 72 samples per replicate. A two-way ANOVA indicated that for all three replicates percent germination was significantly affected by salinity concentration, cultivar type, and salinity concentration x cultivar type (p<0.05). Furthermore, post hoc results showed that nearly every combination of cultivars and concentrations with respect to percent germination was significant. In all, the data from all three replicates showed that the Trailblazer cultivar was the most successful at germinating in saline conditions for every concentration tested. This information fills a crucial gap in knowledge, as most research pertaining to switchgrass has focused on conversion of plant matter into alcohols from sugars as well as cellulose. From this study, decisions regarding cultivar type and alterations to standard seeding density, based upon germination rates, may be determined to make land conversion as economically and ecologically productive as possible.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 83 • No. 3