作者：戴振洋、蔡宜峰、張隆仁、邱建中

　　 本研究目的在於探討不同介質與育苗盤對紫錐花幼苗品質之影響。試驗結果顯示，比較第五週齡幼苗之地上部、地下部的鮮重及乾重，均以本場調配之介質 (TC1) 配合 60 格穴盤最高，鮮重分別為 1.31 g 及 1.569 g ；乾重分別為 0.169 g 及 0.199 g 。表現較差的為市售之泥炭苔配合水稻育苗盤且達顯著性差異。在品質分析方面，利用不同品質分析方法 A 及 B ，由評估壯苗品質指數顯示，以本場調配之介質配合 60 格穴盤表現最好，而市售之泥炭苔配合水稻育苗盤表現最差。在養分含量方面，使用本場調配之介質之幼苗地上部磷、鉀及鎂含量顯著高於市售之泥炭苔處理。

關鍵字： 紫錐花、 介質、 育苗盤、品質 。

　　 The objective of this study was to assess the effects of various media and trays on the seedlings quality of purple coneflower. These results indicated that the seedling weight in 5 week-age cultured in 60-cell plug tray with Taichung DAIS No 1. medium (M₀T₁) had positive effect. The fresh weight and dry weight of shoot and root were 1.31g, 1.569g, 0.169g and 0.199g, respectively, so that the seedling quality was better than that planted in rice tray (M₁T₀) with peat moss medium. The index of seedling quality A and B were used to evaluate the quality of purple coneflower seedlings in different media and trays. Seedlings planted in 60-cell plug tray with Taichung DAIS No1. medium (M₀T₁) had best performance than that in rice tray (M₁T₀) with peat moss medium. However, the uptakes ability of P, K and Mg of seedling nutrient of purple coneflower in all trays with Taichung DAIS No1. medium (M₀T₁) were better than that in the other trays with peat moss medium at 5 weeks after sowing.

Key words: purple coneflower (Echinacea purpurea), culture medium, plug tray, seedling quality .