CAJ | 학술논문

【目的】筛选发财树Pachira macrocarpa残根的最佳杀菌剂和最佳杀菌消毒时间．【方法】用1.25 g· L-1的多菌灵、甲霜灵锰锌、农用链霉素、甲基托布津和2.0 g· L-1高锰酸钾溶液对发财树残根进行不同时长的消毒灭菌处理，研究不同杀菌剂、不同消毒灭菌时间对发财树残根的芽长、叶片鲜质量、根长、根质量、出根数、根系活力的影响．【结果和结论】对发财树残根杀菌效果最理想的菌剂是多菌灵，其次为甲基托布津，再次为甲霜灵锰锌和高锰酸钾，农用链霉素的杀菌效果最差；发财树残根的最佳消毒灭菌时长为0.5和1.0 h，消毒灭菌时间过长（12 h）对发财树残根的生长反而有明显的抑制作用．
【목적】사선발재수Pachira macrocarpa잔근적최가살균제화최가살균소독시간．【방법】용1.25 g· L-1적다균령、갑상령맹자、농용련매소、갑기탁포진화2.0 g· L-1고맹산갑용액대발재수잔근진행불동시장적소독멸균처리，연구불동살균제、불동소독멸균시간대발재수잔근적아장、협편선질량、근장、근질량、출근수、근계활력적영향．【결과화결론】대발재수잔근살균효과최이상적균제시다균령，기차위갑기탁포진，재차위갑상령맹자화고맹산갑，농용련매소적살균효과최차；발재수잔근적최가소독멸균시장위0.5화1.0 h，소독멸균시간과장（12 h）대발재수잔근적생장반이유명현적억제작용．
Objective To screen the best fungicide and the best germicidal time of Pachira macrocarpa.[Method] The effects of different fungicides and bactericides with different germicidal times on the resid-ual root of reclaimed P.macrocarpa were investigated through pot experiments with peat soil .Five fungi-cides and bactericides ( carbendazim , metalaxyl mancozeb , agricultural streptomycin , thiophanate methyl and potassium permanganate ) were selected to study their effects on the shoot length , leaf mass , root length,root numbers,root mass,and root activities of the residual root of the reclaimed P.macrocarpa. The concentration of carbendazim , metalaxyl mancozeb , agricultural streptomycin , and thiophanate meth-yl was 1.25 g· L-1 while potassium permanganate was 2.0 g· L-1 .[Result and conclusion] The results showed that the best fungicide and bactericide was carbendazim , followed by thiophanate methyl , with the third being metalaxyl mancozeb and potassium permanganate and the least effective fungicide and bac -tericide being agricultural streptomycin .The preferred germicidal time was 0.5 and 1.0 h.The growth of the residual root of P.macrocarpa was significantly inhibited when it was disinfected over time (12 h).