The paper studied effects of GA_3 and IAA on cellulase activity in abscission zone from petiole of primary leaves of bean, cotyledon petioles and boll petioles of cotton.
赤霉酸（GA_3）处理菜豆叶柄和棉苗子叶柄外植体，离区的纤维素酶活力增加，而吲哚乙酸（IAA）则抑制离区纤维索酶的活力。
Most of neutral arthropods of desert transitional zone were not relationship with the neutral arthropods of cotton field.
荒漠过渡带大多数中性节肢动物都与棉田中性节肢动物无关。
Aluminum and aluminum silicate insulation cotton is filled externally to offer good thermal insulation performance and a constant temperature zone in a sufficient length.
外填充铝和硅酸铝保温棉以起到良好的保温性能和充分长度的恒温区。
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