Title:
Relative Salt Tolerance of Switchgrass (Panicum Virgatum) Varieties During Germination Development
Author(s):
Fan, X., Hou, X., Wu, J., Zhu, Y.
Document(s):
Paper
Abstract:
In November 2010, one experiment was set up to investigate switchgrass salt tolerance in the germination phase. Seeds of nine varieties in four replicates were exposed to solutions containing 0 (distilled water), 50, 100, 200, 300 and 400 mM NaCl. The results show that seed germination characteristics and seedling biometric traits resulted significantly influenced by salt levels, varieties and the interaction of both. Plant responses resulted progressively worse with increasing salt levels with the exception of 50mM. At the salinity level of 50 mM NaCl some varieties developed better than control. Based on the analysis of variance and clustering, the varieties can be divided into three groups: salt sensitive, moderately salt tolerant and salt tolerant. The most salt tolerant variety was Alamo. The moderate salt tolerant varieties were BJ-1, Forestburg, Pathfinder, Tailblazer, BJ-2 and Cave-in-Rock. The most salt-sensitive varieties were BJ-3 and BJ-4. The response patterns of the nine genotypes suggested that a wide variation exists in switchgrass for salt tolerance; The observed variations in salt tolerance between different switchgrass varieties may be a valuable tool in further switchgrass breeding programs.
Keywords:
switchgrass, germination, bioenergy grass
Topic:
Biomass Resources
Subtopic:
Energy crops (session 3)
Event:
19th European Biomass Conference and Exhibition
Session:
OC1.1
Pages:
149 - 151
ISBN-13:
978-88-89407-55-4
ISBN-10:
88-89407-55-7
Paper DOI:
10.5071/19thEUBCE2011-OC1.1
Price:
FREE
