图2
基于14个共生参数的苜蓿-根瘤菌相互作用的主成分分析。NN，结节数;ENW:有效结节重量;ND:结节直径;NG，结节级;NNA，结节氮化酶活性;LN，叶数;SH，射高;RL，根长;SFW，笋鲜重; RFW, root fresh weight; SDW, shoot dry weight; RDW, root dry weight; CC, chlorophyll content; CPC, crude protein content
基于14个共生参数的苜蓿-根瘤菌相互作用的主成分分析。NN，结节数;ENW:有效结节重量;ND:结节直径;NG，结节级;NNA，结节氮化酶活性;LN，叶数;SH，射高;RL，根长;SFW，笋鲜重; RFW, root fresh weight; SDW, shoot dry weight; RDW, root dry weight; CC, chlorophyll content; CPC, crude protein content