| 不同镁供应浓度对油菜苗期生长和生理特性的影响
 | 
		
		| 王鲲娇,任涛,陆志峰,鲁剑巍 | 
			
			| Effects of Different Magnesium Supplies on the Growth and Physiological Characteristics of Oilseed Rape in Seeding Stage
 | 
		
		| WANG KunJiao,REN Tao,LU ZhiFeng,LU JianWei | 
	
		|  | 
	
		| 表3 镁对油菜苗期各叶位叶片表型特征的影响 
 | 
	
		| Table 3 Effect of Mg on the phenotype of shoot and root of oilseed rape during seedling stage 
 | 
	
		|  | 
	
		|    | 供镁浓度 Magnesium supplies
 concentration (mmol·L-1)
 | 表型 Phenotype
 | 叶位Leaf position |   | 1 (下lower)
 | 2 | 3 | 4 | 5 | 6 | 7 (上upper)
 |   | 缺乏Lack 0.10
 | 镁浓度 Mgc (%) | 0.13±0.01* | 0.16±0.01* | 0.16±0.01* | 0.24±0.01* | 0.28±0.02* | 0.33±0.04* | — |   | 叶面积 LA (cm2) | 51±5* | 87±3* | 91±4* | 104±4* | 104±5* | 66±5* | — |   | 叶片生物量 BMleaf (g DW/plant) | 0.26±0.03 | 0.28±0.01* | 0.30±0.02* | 0.29±0.02* | 0.25±0.02* | 0.14±0.01* | — |   | 比叶重 LMA (mg·cm-2) | 2.8±0.4* | 2.9±0.3* | 3.2±0.3* | 2.8±0.1 | 2.7±0.1 | 3.9±0.3 | — |   | 淀粉浓度 Starchc (%) | 4.1±0.2* | 7.9±0.3* | 8.2±0.1* | 5.3±0.2* | 4.7±0.2* | 3.3±0.0* | — |   | 蔗糖浓度 Sugarc (%) | 6.1±0.3* | 5.1±0.3* | 4.7±0.1* | 3.2±0.1* | 2.4±0.1* | 3.3±0.1* | — |   | 适宜Optimum 1.00
 | 镁浓度 Mgc (%) | 1.30±0.03 | 1.35±0.05 | 1.27±0.09 | 0.98±0.03 | 1.08±0.04 | 1.07±0.04 | 0.93±0.03 |   | 叶面积 LA (cm2) | 113±12 | 155±4 | 160±4 | 139±5 | 126±4 | 93±4 | 56±2 |   | 叶片生物量 BMleaf (g DW/plant) | 0.27±0.01 | 0.32±0.01 | 0.38±0.01 | 0.42±0.03 | 0.33±0.02 | 0.30±0.02 | 0.17±0.02 |   | 比叶重 LMA (mg·cm-2) | 1.5±0.2 | 1.9±0.1 | 2.1±0.2 | 3.1±0.3 | 3.0±0.2 | 3.5±0.1 | 4.9±0.3 |   | 淀粉浓度 Starchc (%) | 1.5±0.0 | 2.2±0.1 | 1.9±0.0 | 2.5±0.1 | 2.7±0.1 | 3.0±0.1 | 2.1±0.1 |   | 蔗糖浓度 Sugarc (%) | 3.3±0.1 | 1.8±0.2 | 3.2±0.0 | 7.4±0.1 | 4.5±0.1 | 6.4±0.1 | 11.5±0.6 |  | 
	
		|  | 
	
		|  |