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4 施氮结束后30天桢楠幼树可溶性糖的含量(平均值±标准偏差)

Table 4 Soluble sugar content in Phoebe zhennan seedlings 30 days after the last nitrogen application (mean ± SD)

处理 Treatment		土壤含水量 Soil moisture content
处理 Treatment		80% FC	50% FC	30% FC	15% FC	平均值 Mean
氮水平 N level	N0	0.516 ± 0.007^Bb	0.536 ± 0.009^Bb	0.605 ± 0.008^Aa	0.612 ± 0.010^ABa	0.568 ± 0.045^A
	MN	0.548 ± 0.005^Ab	0.564 ± 0.011^Ab	0.569 ± 0.009^Bb	0.595 ± 0.013^Ba	0.569 ± 0.020^A
	HN	0.523 ± 0.009^ABc	0.548 ±0.010 ^ABc	0.574 ± 0.008^Bb	0.633 ± 0.036^Aa	0.569 ± 0.046^A
平均值 Mean		0.529 ± 0.015^d	0.549 ± 0.015^c	0.583 ± 0.018^b	0.614 ± 0.026^a
F(SW×SN)		6.560^**
F(SW)		67.479^**
F(SN)		0.062