Leaf area was significantly correlated with plantlet height, leaf dry weight and stern dry weight.The correlation of nitrogenase activity (acetylene reduction) and leaf area was significant too.

• 叶面积与叶部含氮量间，叶面积与苗木之高生长、叶乾重、茎乾重以及根瘤活性与叶面积间皆呈极显著相关。