蒲草（Lepironia articulata）種子繁殖與肥培管理之研究

蒲草（Lepironia articulata），為莎草科（Cyperaceae）石龍芻屬（Lepironia）植物，是東南國家常見的水生植物，近期更開發為具環保性的植物吸管。本研究擬評估人工栽培繁殖之可行性。以二種日／夜溫度（25/20℃，30/25℃）與光照16h或不照光評估對蒲草種子發芽之影響，結果只有在30/25℃下光照16h有30%種子發芽，平均發芽天數為67.8天；其他處理均無種子發芽。另以NPK肥、N肥、P肥、K肥等4種肥料，不施肥為對照組（CK）來評估對蒲草植株生長之影響，結果以N肥組株高最高且直徑最粗，NPK、K組分蘗數最多，而施用P、N肥組株高與莖直徑成長率最高。顯示N、P肥可促進蒲草生長，K肥增加植株分蘗，有利於植物吸管的開發利用。

關鍵字

蒲草；繁殖；光照；溫度；肥料

並列摘要

Lepironia articulata, a genus of Lepironia in the family Cyperaceae, is a common aquatic plant in Southeast Asia and has recently been developed as an environmentally friendly plant straw. The effect of two day/night temperatures (25/20°C, 30/25°C) and 16 h of light or dark on the germination of Lepironia articulata seeds were evaluated. Only 30% of seeds germinated under 16 h light and 30/25°C treatment, with an average germination time of 67.8 days. No seed germinated in the other treatments. The NPK, N, P and K fertilizers were used to evaluate the growth of Lepironia articulate for 57 days. The N fertilizer group had the tallest plant height and thickest stem diameter. The NPK and K groups had the highest number of tillers. The P and N fertilizer groups had the highest growth rate in plant height and stem diameter. The results showed those fertilizers of N and P were beneficial treatments for plant growth, and the K fertilizer could increase the tillers number of Lepironia articulatasand. Fertilizer application could promote the straw of Lepironia articulatasand production and development.

並列關鍵字

Lepironia articulata ； propagation ； light ； temperature ； fertilizer

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