Responses of Castanea crenata to Injection Wound for Oxytetracycline(OTC)

옥시테트라사이크린(OTC) 수간주입 상처에 대한 밤나무의 반응

  • Cha, Byeong-Jin (Dept. of Agricultural Biology, College of Agriculture, Chungbuk National University) ;
  • Yun, Jeong-Koo (Dept. of Forestry, College of Agriculture, Chungbuk National University)
  • 차병진 (충북대학교 농과대학 농생물학과) ;
  • 윤정구 (충북대학교 농과대학 임학과)
  • Published : 1996.03.31

Abstract

Chestnut(Castanea crenata) were trunk-injected by two methods to check the changes around the injection wound. In September 1993, high concentration of oxytetracycline(OTC) was injected through the injection wound of 1cm diameter and low concentration of OTC through 0.5cm diameter. Trunk diameter of injected trees ranged from 10cm to 20cm. All trees were in their vigorous conditions. Tree reaction was examined in June, 1994. None of them showed any sign of decay by the time. However, under the bark, sapwood was remarkably discolored. But, more severe discoloration was found in 1cm-injection wound than in 0.5cm one. Sapwood of some trees split from the injection wound, and the split was longer in 1cm-injection wounded trees than in 0.5cm trees. From the split, callus grew out and the split was closing. In this kind of trunk injection, the damage was more severe in 1cm-injection wound than in 0.5cm-injection wound.

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