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1·The herbicidal activity on dicotyledon weeds is better than on monocotyledon weeds.

对双子叶杂草的活性明显优于对单子叶杂草的活性。

2·In angiosperms there are 475 species of monocotyledon and 567 species of dicotyledon.

被子植物中单子叶植物475种，双子叶植物567种。

3·The microcapsule can be widely used for preventing and controlling monocotyledonous weeds in dicotyledon crop field.

本发明所提供的微胶囊剂，可广泛用于双子叶作物田中防除单子叶杂草。

4·In addition, the same P1943-GUS fusion construct was introduced into tobacco to analyze its specificity in dicotyledon.

另外还将P 1943 - GUS转进烟草中，研究其在双子叶植物中的特异性。

5·The total effective rate against corn field grass family, dicotyledon, cyperaceae weeds can be higher than 86, and it is safe to corn and soybean crops.

本发明悬乳剂提高了防效，扩大了乙草胺和阿灭净的防治谱，对玉米田禾本科，双子叶，莎草科杂草的总防效达86%以上，而且对玉米，大豆等作物使用安全性好。

6·The Gramineae and Cyperaceae were Locustae's main host. The Dicotyledon could be temporary host, however , it was bad for Locustae to grow up, breed and so on.

飞蝗嗜食寄主为禾本科、莎草科植物，双子叶植物可以成为飞蝗的临时寄主，但对飞蝗的发育、繁殖及后代均有明显的不利影响；

7·The results showed that Rhododendronous physiological and morphological responses to alkali and Iron deficit were similar to dicotyledon and monocotyledon of non - graminaceae.

杜鹃在碱性缺铁情况下，生理及形态反应都符合双子叶植物和非禾本科单子叶植物的反应机制。