- 期刊
- OpenAccess
發根劑對痲瘋樹扦插苗生長之影響
Effect of Rooting Promoters on Growth of Physic Nut (Jatropha curcas L.) Cuttings
摘要
本試驗旨在探討發根劑對痲瘋樹扦插繁殖時生育之影響。以500、1,000、2,000ppm等3種不同濃度NAA（1-naphthylacetic acid，萘乙酸）及100、1,000 ppm等2種不同濃度IBA（indole-3-butyric acid，吲哚丁酸）處理進行痲瘋樹扦插育苗試驗，結果顯示以IBA 1,000 ppm處理之扦插苗平均成活率最高為88.9%，平均根長亦較高為17.3cm；NAA 2,000 ppm處理之平均根數較多為23.5條，平均根重以NAA 1,000 ppm處理最重為2.06 g。另以1,000、2,000、4,000及8,000 ppm等4種不同濃度IBA處理進行痲瘋樹扦插育苗試驗，結果顯示各處理之扦插苗成活率均達90%以上，葉寬及葉長各處理間差異不顯著，株高及株幅以IBA 8,000 ppm處理最佳，分別為28.2及27.8cm，與對照組處理間差異均達顯著水準。
並列摘要
The experiment was conducted to study the effect of IBA (indole-3-butyric acid) and NAA (1-naphthylacetic acid) and concentrations of growth of physic nut (Jatropha curcas L.) cuttings. In experiment of different root promoters and concentrations, the cuttings treated with 1,000 ppm IBA had the best survival rate (88.9%) and the highest average root length (17.3 cm). The cuttings treated with 1,000 ppm NAA had the greatest number of roots (23.5) and with 2,000 ppm NAA had the greatest weight of roots (2.06 g). In experiment of different IBA concentrations, the cuttings treated with each concentration of IBA had the survival rate no less than 90%. There was not significant effect on width and length of leaf of cuttings. Cuttings treated with 8,000 ppm IBA grew higher and more width than other treatments. There were significant differences between 8,000 ppm IBA and the control. It's feasible to use rooting promoter on cutting propagation.