| 1. | There existed very significant correlations between drought tolerance and relative values of root dry weight , total root length , and root volume ( per plant dry weight basis ) , respectively , which could be used as root indicators of drought tolerance 比根干重、比总根长、比根体积与耐旱隶属函数平均值均呈极显著正相关,可作为耐旱性的根系性状指标。 |