Allogamy Cross - fertilization in plants.异花受精:植物中的异体受精.Most plants are hermaphrodite, but have mechanisms such as self - INCOMPATIBILITY that promote allogamy.许多植物是雌雄同体的, 但它们存在自交不亲和的机制,从而促进异花受精....
That boy is so badly behaved that he cares nothing for manners and spits in the eye of all the teachers.那孩子的行为恶劣、举止粗野,对所有的老师都不尊重.That boy behaves so badly that he cares nothing for manners, and spits in the face of all t...
用木薯茎切段及顶芽作为外植体,诱导木薯愈伤组织的形成.Callus was induced from explants of cassava stem with bud and shootlet.结果表明:培养基pH6.5或培养温度20℃时外植体褐化率最低.The browning rate was the lowest at pH 6.5 or 20℃.结果表明:外植体为胚轴出愈速度快 、 质量好且分化率高.The results s...
For some people, souping up motorcycles or cars is their hobby.还有人把改装东西作为嗜好?真是难以想象.Souped up the 1959 Ford; souping up old sound systems.改进1959年产的福特汽车; 提高旧的声音系统的效果.I knew a guy who was always souping up something in his ...