CAJ | 학술논문

采用生物测定法研究了宜宾油樟根、茎、叶水浸提液对小麦种子萌发及幼苗生长的化感作用.结果表明,油樟对小麦的化感作用和供体的不同器官、浸提液浓度以及受体的不同发育阶段有密切关系.油樟浸提液主要延迟小麦种子的萌发.随浸提液浓度的增大,小麦种子的最终发芽率、发芽速率、幼苗叶绿素含量呈"降-升-降"的趋势变化,而幼苗高度、根长呈"升-降"的趋势变化.化感强度综合效应是叶＞根＞茎,提示人们在小麦生产区要注意油樟种植的密度.
채용생물측정법연구료의빈유장근、경、협수침제액대소맥충자맹발급유묘생장적화감작용.결과표명,유장대소맥적화감작용화공체적불동기관、침제액농도이급수체적불동발육계단유밀절관계.유장침제액주요연지소맥충자적맹발.수침제액농도적증대,소맥충자적최종발아솔、발아속솔、유묘협록소함량정"강-승-강"적추세변화,이유묘고도、근장정"승-강"적추세변화.화감강도종합효응시협＞근＞경,제시인문재소맥생산구요주의유장충식적밀도.
The allelopathy of Youzhang [Cinnamomum longepaniculatum (Gamble), N. Chan] on wheat was studied by bioassay methods. The result shows the allelopathy has a close relation to supporter organs, extract concentrations and receptor developing states. Youzhang extracts mainly delay the seeds germination of wheat. With the increases of the concentration of Youzhang extracts, the final germination rate, germination speed and chlorophyll content of wheat change by way of drop-rise-drop, and seedling height and root length change by way of rise-drop. The synthesis effect of Youzhang leaves on wheat is the strongest, next to that of the roots, and the stem allelopathy is the weakest. Therefore, it is suggested that the planting density of Youzhang should be paid attention to.