Spring Green-up and Winter Leaf Discoloration of Three Ornamental Grasses (Gramineae spp.)
2015
Kim, K.D., Yonsei University, Wonju, Republic of Korea | Lee, J.H., Korea Golf University, Hoengsoeng, Republic of Korea | Joo, Y.K., Yonsei University, Wonju, Republic of Korea
This research was initiated to analyze the periods of spring green-up and winter leaf discoloration of three ornamental grasses which have potential to be widely used with seed propagation. Two native grasses of Arundinella (Arundinella hirta var. ciliata Koidz), fountaingrass (Pennisetum alopecuroides (L.) Spreng), and switchgrass (Panicum virgatum L.) was tested. Spring green-up were evaluated after one year growth from seed propagation on April 1, 2009. Arundinella started with quick pick of spring green-up during 13th to 20th of May. Fountaingrass and switchgrass showed relatively slow picks of green-up during 20th to 27th of May. However, winter leaf discoloration started on swtichgrass and fountaingrass but Arundinella terminated relatively slowly. Swtichgrass showed the pick discoloration during 8th to 15th of October from the bottom to top parts of the plant. Fountaingrass showed the pick winter discoloration started from bottom to top parts during the 22nd to 29th of October. However, Arundinella showed relatively slow discoloration from upper to bottom parts during October 29th to November 5th. Arundinella showed a relatively higher ornamental value with 125 days of the complete green period compared than fountaingrass and swtichgrass which maintained approximately 105 days of green period.
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