1 April 2015 Factors Affecting Seed Germination and Seedling Emergence of Asia Minor Bluegrass (Polypogon fugax)
Xian Wu, Jun Li, Hongle Xu, Liyao Dong
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Little published information is available related to seed germination and seedling establishment of Asia Minor bluegrass, a problematic grass weed in some regions of China. The objective of this study was to examine the effects of different environmental factors on Asia Minor bluegrass seed germination. The optimum temperature for germination was around 10 to 20 C, and more than 90% of seeds germinated under 20/10 and 25/15 C temperature regimes. Also, light and pH did not appear to have any effect on seed germination. Asia Minor bluegrass was sensitive to osmotic stress, but tolerant of NaCl. No seedlings emerged when seeds were buried 4 cm deep. The result suggested that Asia Minor bluegrass has the potential to spread into a large area in China. To prevent its spreading, measures such as soil cultivation can be used to limit seed germination from increased burial depth and/or nonselective herbicides can be applied to kill early-germinating weed seedlings in late summer.

Nomenclature: Asia Minor bluegrass, Polypogon fugax Nees ex Steud.

Weed Science Society of America
Xian Wu, Jun Li, Hongle Xu, and Liyao Dong "Factors Affecting Seed Germination and Seedling Emergence of Asia Minor Bluegrass (Polypogon fugax)," Weed Science 63(2), 440-447, (1 April 2015). https://doi.org/10.1614/WS-D-14-00093.1
Received: 1 July 2014; Accepted: 1 November 2014; Published: 1 April 2015
burial depth
osmotic potential
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