A chemical plant growth regulator,C6H12N2O3,used commercially on apples to retard growth,enhance color,and increase storage life.
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美
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植物生長(cháng)調節器一種植物生長(cháng)的化學(xué)調節器,C6H12N2O3,在商業(yè)上用在蘋(píng)果上以減緩其生長(cháng)速度、增加顏色和延長(cháng)保存期
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国内精品美女A∨在线播放xuan