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点焊的电阻检测法向超声波法挑战
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作者 r.hain 杨东 《无损检测》 北大核心 1992年第11期328-330,共3页
目前,用于评定电阻点焊质量的基本方法仍然是破坏性试验。超声波检测是已取得某些成功的焊缝无损检测方法之一。
关键词 点焊 焊接缺陷 电阻检测法
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A transgenic wheat with a stilbene synthase gene resistant to powdery mildew obtained by biolistic method 被引量:12
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作者 r.hain 《Chinese Science Bulletin》 SCIE EI CAS 2000年第7期634-638,共5页
Stilbene, a kind of phytoalexin, plays an important role in resistance to fungal and bacterial infection in plants. It strongly inhibits the growth of fungi and sprout of spore. Stilbene synthase gene (Vst1) obtained ... Stilbene, a kind of phytoalexin, plays an important role in resistance to fungal and bacterial infection in plants. It strongly inhibits the growth of fungi and sprout of spore. Stilbene synthase gene (Vst1) obtained from grapevine has been transferred into common spring wheat Jinghong 5 by using the biolistic transformation method. Five transgenic plants (T0) were obtained from the bombarded 2014 immature embryos. One immune plantlet and 3 plantlets with mid-resistance to powdery mildew were identified from the transgenic plants of T3 generation which came from 2 T0 transgenic plants. 展开更多
关键词 wheat transformation by BIOLISTIC METHOD STILBENE SYNTHASE phytoaiexin powdery mildew.
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