酚酸和氮素交互作用下欧美杨107细根形态特征

朱婉芮, 汪其同, 刘梦玲, 王华田, 王延平, 张光灿, 李传荣

Interactive effects of phenolic acid and nitrogen on morphological traits of poplar (Populus × euramericana ‘Neva’) fine roots

ZHU Wan-Rui,WANG Qi-Tong,LIU Meng-Ling,WANG Hua-Tian,WANG Yan-Ping,ZHANG Guang-Can,LI Chuan-Rong

表3 酚酸和氮素对细根形态特征的交互效应分析

Table 3 The interaction effect of phenolic acid and nitrogen on morphological traits of poplar fine roots

根序 Root order	处理 Treatment	根长度 Total root Length (cm)	根表面积 Total root surface area (cm²)	根体积 Total root volume (cm³)	根平均直径 Average diameter of root (mm)	根干质量 Root dry mass (g)	比根长 Specific root length (m·g^-1)	根组织密度 Root tissue density (g·cm^-3)
1级 First order	p_N	0.002^*	0.000^*	0.000^*	0.000^*	0.009^*	0.018^*	0.001^*
	p_T	0.116^ns	0.559^ns	0.295^ns	0.201^ns	0.023^*	0.048^*	0.667^ns
	p_(N×T)	0.300^ns	0.394^ns	0.003^*	0.867^ns	0.067^ns	0.852^ns	0.008^*
2级 Second order	p_N	0.005^*	0.015^*	0.071^ns	0.001^*	0.001^*	0.000^*	0.009^*
	p_T	0.041^*	0.054^ns	0.569^ns	0.083^ns	0.002^*	0.715^ns	0.164^ns
	p_(N×T)	0.015^*	0.028^*	0.557^ns	0.424^ns	0.001^*	0.853^ns	0.011^*
3级 Third order	p_N	0.039^*	0.014^*	0.080^ns	0.003^*	0.017^*	0.000^*	0.000^*
	p_T	0.481^ns	0.011^*	0.046^*	0.164^ns	0.035^*	0.366^ns	0.931^ns
	p_(N×T)	0.004^*	0.012^*	0.086^ns	0.923^ns	0.118^ns	0.494^ns	0.023^*
4级 Forth order	p_N	0.001^*	0.021^*	0.503^ns	0.001^*	0.097^ns	0.000^*	0.052^ns
	p_T	0.066^ns	0.764^ns	0.406^ns	0.066^ns	0.379^ns	0.409^ns	0.521^ns
	p_(N×T)	0.220^ns	0.926^ns	0.070^ns	0.220^ns	0.121^ns	0.634^ns	0.819^ns
5级 Fifth order	p_N	0.005^*	0.048^*	0.012^*	0.067^ns	0.108^ns	0.002^*	0.222^ns
	p_T	0.631^ns	0.238^ns	0.111^ns	0.453^ns	0.163^ns	0.092^ns	0.876^ns
	p_(N×T)	0.760^ns	0.824^ns	0.552^ns	0.129^ns	0.884^ns	0.124^ns	0.569^ns