CAJ | 학술논문

采用盆栽法，研究了不同浓度NaCl胁迫对水松Glyptostrobus pensilis幼苗生长表现的影响。结果表明：随着NaCl浓度的升高和胁迫时间的延长，水松幼苗的存活率逐渐下降，苗高和分枝生长受到明显的抑制作用。至第83天时收获幼苗，只有对照组（S0）和轻度盐胁迫处理组（S1）仍保留一定数量的苗木，其余处理组的苗木大都死亡。与对照组S0相比，S1处理组幼苗的根冠比增加，但总生物量明显下降。反映了水松幼苗能耐轻度盐胁迫，但不耐高盐度胁迫，可作为珠三角淡水或轻度盐胁迫区滨水绿化植物。
채용분재법，연구료불동농도NaCl협박대수송Glyptostrobus pensilis유묘생장표현적영향。결과표명：수착NaCl농도적승고화협박시간적연장，수송유묘적존활솔축점하강，묘고화분지생장수도명현적억제작용。지제83천시수획유묘，지유대조조（S0）화경도염협박처리조（S1）잉보류일정수량적묘목，기여처리조적묘목대도사망。여대조조S0상비，S1처리조유묘적근관비증가，단총생물량명현하강。반영료수송유묘능내경도염협박，단불내고염도협박，가작위주삼각담수혹경도염협박구빈수녹화식물。
Effects of NaCl stress on the seedling growth of Glyptostrobus pensilis were studied by pot-culture method. The result showed that the survival rates decreased with the intensity of salt stress. The seedling height and branching were inhibited strongly by high intensity of salt stress. At the 83th day, most of the seedlings with concentration > 0.25% NaCl died in the treatment. Only under the control (S0) and the treatment with 0.25% NaCl (S1) , there remained sufficient seedlings. By comparison with S0, the root-shoot ratio of S1 increased, but its total biomass decreased significantly. Our findings indicated that Glyptostrobus pensilis can tolerate minor but not high-intensity salt stress, and can be used for the riparian greening in the Pearl River Delta area.