CAJ | 학술논문

研究以小麦根系分泌物丁香酚(2-甲氧基-3-烯丙基苯酚)为参试化感物质，研究了不同供水水平及间作蚕豆条件下丁香酚对小麦旗叶光合特性的影响.结果表明：丁香酚对单、间作小麦旗叶光合速率、气孔导度和蒸腾速率均具有抑制作用，且随供水水平的降低而增强；单作小麦旗叶光合速率、气孔导度和蒸腾速率日均值分别较对照降低13.29%、28.95%和21.08%，间作小麦降低7.41%、24.39%和21.07%，间作可弱化丁香酚的抑制作用.丁香酚处理下的单、间作小麦旗叶瞬时水分利用效率日均值分别提高10.37%和17.96%，且间作模式下与对照差异显著.生产实践中，通过合理间作和优化灌溉可减轻小麦连作以及小麦秸秆覆盖等产生的自毒作用.
연구이소맥근계분비물정향분(2-갑양기-3-희병기분분)위삼시화감물질，연구료불동공수수평급간작잠두조건하정향분대소맥기협광합특성적영향.결과표명：정향분대단、간작소맥기협광합속솔、기공도도화증등속솔균구유억제작용，차수공수수평적강저이증강；단작소맥기협광합속솔、기공도도화증등속솔일균치분별교대조강저13.29%、28.95%화21.08%，간작소맥강저7.41%、24.39%화21.07%，간작가약화정향분적억제작용.정향분처리하적단、간작소맥기협순시수분이용효솔일균치분별제고10.37%화17.96%，차간작모식하여대조차이현저.생산실천중，통과합리간작화우화관개가감경소맥련작이급소맥갈간복개등산생적자독작용.
Allelochemicals are mainly secondary substances of plant,which can influence plants growth by affecting membrane system,hormone level,minerals uptake,photosynthesis,and respiration.This exper-iment was conducted under controlled environments,and was to investigate the eugenol and intercropping effects on the photosynthetic characteristics of wheat under three water supplying conditions (75%,60%and 45% of field capacity).Results showed that eugenol at the rate of 300×10-6 mol/kg of soil negatively affected photosynthetic rate(Pn),stomata conductance(Gs)and transpiration rate(Tr)of wheat crops;the negative effect of eugenol enhanced with the decrease of irrigation rate,however,the intercropping system weakened the allelopathic effect with little negatively effect on photosynthetic characteristics of wheat un-der the same water supplying conditions.The Pn ,Gs and Tr in flag leaves of monoculture wheat decreased 13.29%,28.95% and 21.08% under eugenol treated,which decreased 7.41%,24.39% and 21.07% in the intercropping system respectively.The IWUE were significantly different between treated by eugenol and CK,and increased 17.96% in inter-cropping system.Therefore,this study demonstrated that the autotoxic-ity,often occurring with continuous cropping,could be weakened through optimizing cropping systems and improved water management.