parent: n.1.父亲;母亲。2.〔pl.〕双亲;祖先。3.(动、植物的)母体,亲本。4.根源,本源。5.保护者。短语和例子one's parents 双亲。 parent-teacher association 【教育】家长会。 aparent bird 老鸟。 a parent company 母公司。 parent substance 亲体,母物。 a parent stem
Abstract : grafted and non - grafted seedlings were cultured under - plastic in spring . the parent stocks of grafted seedlings used changchun mici cucumber 文摘:以黄瓜自根苗为对照,研究了以黑籽南瓜为砧木, “长春密刺”黄瓜为接穗的嫁接苗在大棚早春栽培中的采摘周期及产量变化。