【目的】筛选耐低磷与耐高磷的油茶优良品种，以提高油茶产量及减少磷肥对环境的污染。【方法】以闽43、闽48、闽60、浙江红花油茶、CL 21以及FFK 003品种的1年生油茶嫁接苗作为实验材料，测定不同磷浓度下各油茶品种的生长情况和生理生化指标，比较不同油茶品种对磷的偏好程度。【结果】闽48、CL 21在磷浓度为0 g/盆时苗高生长量、地径生长量达到最大值，CL 21及浙江红花油茶在1.89 g/盆时苗高生长量、地径生长量最大；闽48、CL 21在0 g/盆时POD活性较大；闽48品种在0 g/盆时MDA含量较低，浙江红花油菜在1.89 g/盆时MDA含量较低；浙江红花油茶在1.89 g/盆时可溶性蛋白含量最高；CL 21与浙江红花油茶在1.89 g/盆时可溶性糖含量最高。【结论】闽48与CL 21属于耐低磷品种，适合在磷含量贫瘠的土壤中生长，而CL 21与浙江红花油茶属于耐高磷胁迫的品种，适合在含磷量较高的土壤中生长。%Objective]The aim of the study was to screen the low and high phosphorus-tolerant Camellia oleifera and to reduce phosphorus pollution of the environment.[Method]Min 43,Min 48,Min 60,Zhejiang safflower,CL 21 and FFK 003 of 1 years health grafted Camellia seedlings were selected as experiment materials. The growth and physiological and biochemical parameters under different phosphorus concentrations were determined and responses of varieties preference to phosphorus were compared.[Results]The height and diameter growth of Min 48 and CL 21 was largest when the phosphorus concen-tration was 0 g/pot. The performance of Zhejiang safflower and CL 21 was the best under the 1.89 g/pot phosphorus treatment. POD activity of Min 48 and CL 21 were higher when the phosphorus concentration was 0 g/pot. Min 48 was lower in MDA content when the phosphorus concentration was 0 g/pot. Zhejiang safflower was lower in MDA content when the phosphorus concentration was 1.89 g/pot. Zhejiang safflower was highest in soluble protein in phosphorus concentration 1.89 g/pot. Soluble sugar content of CL 21 and Zhejiang safflower were higher in phosphorus concentration of 1.89 g/pot.[Conclusion]Min 48 and CL 21 were the low phosphorus-tolerant varieties and were suitable for growing in poor soil phosphorus soils. CL 21 and Zhejiang safflower were high phosphorus stress-resistant variety of Came llia and was suitable for growing in the high phosphorus soils.
展开▼
