The majority of sweet peas are still bred by enthusiastic amateur gardeners.
大部分甜豌豆仍然是由热衷园艺的业余爱好者培育的。
They are improved strains bred by the Agricultural College.
它们是农学院培育出的改良品种。
A new line (Nannong line) Kentucky bluegrass with strong heat tolerance was screened and bred by Nanjing Agricultural University.
南农选系是针对此问题筛选培育出的耐热草地早熟禾新品系。
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