Analysis of Seed Germinating Vigor, Germination Speed and Peak Time in 9 Fescues under Alternative and Natural Conditions at the Room Temperature
2017
Kim, K.N., Sahmyook University, Seoul, Republic of Korea
This study was initiated to investigate seed germinating vigor, germination speed, and establishment characteristics of Festuca species under natural conditions (5-25℃). Germination rate was 62.0% in CRF 'Audubon' to 97.0% in TF 'Olympic Gold'. It was greater with TF over fine-type fescues, being TF greater than SF greater than CF, HF greater than CRF. The germination speed, measured as days to seed germination of 50% through 80%, was fastest with TF, medium to high with CF, medium with HF and SF, and slowest with CRF. However, it was approximately 4 days slower under natural conditions, as compared with that under alternative conditions (15-25℃). Germination peak time was much faster with TF. It ranged from 0.73 to 1.84 days with TF, being 1.45 days in average. But it varied with 2.16 to 11.75 days among fine-type species. The peak time was longer in order of SF less than CF less than HF less than CRF. Considering germinating vigor, germination speed and peak time, TF 'Olympic Gold' was the best cultivar under natural conditions, while CRF 'Audubon' the poorest one. The overall establishment characteristics among Festuca species were even better with TF over fine-type fescues, which decreased in order of TF greater than CF greater than SF greater than HF greater than CRF.
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