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http://dx.doi.org/10.5660/WTS.2014.3.1.29

Comparison of Germination Characteristics and Daily Seed Germinating Pattern in 15 New Cultivars of Kentucky Bluegrass Grown under Alternating Temperature Conditions  

Kim, Kyoung-Nam (Dept. of Horticulture, College of Science and Technology, Sahmyook University)
Publication Information
Weed & Turfgrass Science / v.3, no.1, 2014 , pp. 29-40 More about this Journal
Abstract
Research was initiated to investigate early establishment characteristics and germination pattern of Kentucky bluegrass (KB, Poa pratensis L.). Fifteen cultivars were evaluated under alternative conditions (8 hours light at $25^{\circ}C$ and 16 hours dark at $15^{\circ}C$). Significant differences were observed in germination characteristics and germination pattern among KB cultivars. A final germination percentage differed in cultivars, being 75.25 to 89.50%. The first germination was initiated between 6 and 9 DAS (days after seeding). As for the first germination percentage, 'Brilliant' and 'Midnight II' produced 14.50% and 23.00%, respectively, while the others were most below 5%. Days to 75% germination were between 15.08 and 28.80 DAS. 'Excursion', 'Midnight II', 'Odyssey', 'Midnight' and 'Courtyard' were fastest. The slowest cultivar was 'Voyager II', being over 28 DAS, which were 13 to 14 days slower than the fastest ones. Considering the first germination percentage, days to the first germination, days to 75% germination, and germination pattern, 'Midnight II', 'Excursion' and 'Midnight' were regarded as excellent cultivars under alternative conditions. From this study, information on differences in germination characteristics and patterns would be practically useful for a golf course construction when established with KB.
Keywords
Cumulative germination rate; Days to the first germination; Days to 75% germination rate; Poa pratensis;
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Times Cited By KSCI : 13  (Citation Analysis)
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