root collar 中文意思是什麼

root collar 解釋
根頸
  • root : n 魯特〈姓氏〉。n 1 （草木、毛發等的）根；根菜，食用菜根；根莖，地下莖；塊根；有根植物，草木，草...
  • collar : n 1 衣領；硬領；項圈；護肩，（牲口的）軛。2 環狀物；【機械工程】端箍，軸環；【建築】柱環；系梁，...
  1. Field germination, nodulation status and physical growth parameters of seedlings ( shoot and root length, vigor index, collar diameter, leaf number, fresh and dry weight of shoot and root and total dry biomass increment ) were recorded after three and six months of seed sowing

    播種的3和6月後，記錄幼苗大田發芽、分枝狀況和其他物理生長參數（枝條或根長、活力指數、莖直徑、葉片數、分枝或根鮮重和干重、總的生物量干重增長）等。
  2. After long terms culture under al stress, the root system of untransformed control was soft and rotted and covered with purple bacterium. we compared root tip, root collar and root - stem transition region and found the transgenic plants have relative normal root system

    鋁溶液長期處理的根系外部形態具有較大差異，從根尖、根中部和根莖交接處做了比較，發現對照的根系軟腐並有紫色菌著生，而轉基因植株根系相對保持正常。
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