干旱胁迫对桢楠幼树渗透调节与活性氧代谢的影响及施氮的缓解效应

王曦,胡红玲,胡庭兴,张城浩,王鑫,刘丹

Effects of drought stress on the osmotic adjustment and active oxygen metabolism of Phoebe zhennan seedlings and its alleviation by nitrogen application

Xi WANG,Hong-Ling HU,Ting-Xing HU,Cheng-Hao ZHANG,Xin WANG,Dan LIU

表1 不同干旱水平下容器内土壤体积含水量及盆栽总质量

Table 1 Soil volumetric water content of the four moisture gradients and total mass of plant, soil and pot

土壤含水量(处理水平) Soil water content % FC (The level of drought) 体积含水量 Soil volumetric water content (%) 盆栽总质量(平均值±标准偏差) Pot’s mass (mean ± SD) (g) 80% FC (水分充足 Sufficient water) 28.8 13β696 ± 97 50% FC (轻度干旱 Mild drought) 18.0 12β979 ± 112 30% FC (中度干旱 Moderate drought) 10.8 12β357 ± 106 15%FC (重度干旱 Severe drought) 5.4 12β070 ± 84