The regeneration system used by stems of one-year-old pyrus betulae folia Bge.
本试验以一年生杜梨茎段为材料,建立其离体再生体系.
A wild mountain ash ( Pyrus decora ) of eastern North America.
花楸北美东部的一种野生花楸 ( 装饰梨 )
Screen the stem proliferation medium of Pyrus Pyrifolia C V.
与筛选苹果梨茎段增殖培养基>>相似的文献.
Here, spring-flowering pyrus and prunus trees frame the view to the golf course while mimosa and jacaranda trees provide summertime blue and red flowers as well as cooling shade.
这里,春季赏花豆梨和李树形成了框景通向高尔夫会所的景观,而含羞草和紫薇提供了夏季蓝色红色的花朵和阴凉。
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