อ้างอิง: BioMed Central Limited (2012, December 7). What happens to plant growth when you remove gravity?. ScienceDaily. Retrieved December 9, 2012, from http://www.sciencedaily.com/releases/2012/12/121206203148.htm
งานวิจัย: Anna-Lisa Paul, Claire E. Amalfitano and Robert J. Ferl. Plant growth strategies are remodelled by spaceflight. BMC Plant Biology, (in press) 2012
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