中文摘要：

以不同含水量土壤盆栽裸燕麦,通过对不同生育时期的株高、叶面积、干物质量进行测定,研究土壤含水量对燕麦生长的影响。结果表明,裸燕麦生长的最佳土壤相对含水量为75%,苗期和灌浆期土壤相对含水量为90%时生物量最高;裸燕麦各生育时期的株高、叶面积、干物质量均随土壤含水量的下降而降低,生长速率呈下降趋势;土壤含水量过高和过低使株高衰退速率增加,叶面积衰退速率减小;裸燕麦拔节期水分胁迫,营养主要分配到根、茎和叶鞘;土壤含水量过多时,营养主要分配到叶;水分适宜营养主要分配到穗部。

英文摘要：

Effects of water stress on naked oats＇ growth were investigated through pot experiments with different soil water contents.The results indicate that the optimal relative water content in soil （RWCS） was 75% for oat growth,and the biomass was the highest when the RWCS was 90%.Plant height,leaf area,dry matter accumulation and thus growth rate decreased with the decrease of RWCS.