作者对我国北方小豆地方品种资源、国外引入品种资源中抽取的40 8份栽培型材料和5份野生型小豆系统材料的叶片茸毛性状进行了调查。
The leaf blade hair character of 408 cultivated type dates and 5 wild type dates were investigated from adzuki bean variety sources of North China and overseas leaded varieties.
夏威夷的木瓜在1998年引入基因改良的品种之前，由于环斑病毒的影响，产量已经降低了。
The ringspot virus had halved papaya production in Hawaii before a resistant GM strain was introduced in 1998.
上世纪七十年代，作为清除池塘中藻类和漂浮物质的活真空清洁器，亚洲鲤鱼——包括普通、黑色和大头品种——被引入美国。
Asian carp—including thecommon, black and bighead variety—were brought to the U.S. in the 1970sas live vacuum cleaners meant to remove algae and suspended matter fromponds.
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