CAJ | 학술논문

为了探明化学调控物质对盐胁迫下小麦幼苗及根系生长的调控作用,采用水培方式研究了烯效唑、水杨酸、硅酸钠、硝酸镧等4种化学调控物质浸种对盐胁迫条件下2个小麦品种(临汾8050和临旱536)根系及幼苗生长的影响.结果表明,适当浓度的化学调控物质浸种可以显著或极显著地减少盐胁迫下小麦幼苗的MDA含量,增加幼苗的次生根数、总根长、根冠比、功能叶面积、叶片叶绿素含量、根系Pro含量、 SOD和POD活性,但可溶性糖含量的提高未达显著水平.2个小麦品种对化学调控物质处理的敏感程度存在差异.适当浓度化学调控物质浸种能有效缓解盐胁迫对小麦幼苗根系的伤害,具有显著促进小麦根系生长、培育壮苗的作用.
위료탐명화학조공물질대염협박하소맥유묘급근계생장적조공작용,채용수배방식연구료희효서、수양산、규산납、초산란등4충화학조공물질침충대염협박조건하2개소맥품충(림분8050화림한536)근계급유묘생장적영향.결과표명,괄당농도적화학조공물질침충가이현저혹겁현저지감소염협박하소맥유묘적MDA함량,증가유묘적차생근수、총근장、근관비、공능협면적、협편협록소함량、근계Pro함량、 SOD화POD활성,단가용성당함량적제고미체현저수평.2개소맥품충대화학조공물질처리적민감정도존재차이.괄당농도화학조공물질침충능유효완해염협박대소맥유묘근계적상해,구유현저촉진소맥근계생장、배육장묘적작용.
In order to determine the regulatory effect of chemical regulators on root growth of wheat under salt stress, a solution culture experiment using NaCl to induce salt stresses was carried out to evaluate the effects of seed soaked with four chemical regulators(S-3307 ,SA, NaSiO_4,and La(NO_3)_3) on the growth and antioxidant enzyme activity of wheat seedling and root. The results showed that: comparing with the control, seed soaking with chemical regulators enhanced seedling growth and increased the plant height, leaf area, total root length and number, and fresh weight, chlorophyll content and Pro content and the activities of SOD and POD;The soluble sugar content increased unsignificantly ;The MDA decreased significantly at the same time. Soaking seeds with chemical regulators could play an important role in raising healthy wheat seedlings wheat under slat-stresses.