CAJ | 학술논문

[目的]研究2个甜高粱品种KF0680—1和KF0680．2在盐胁迫条件下的萌发特性及其α-淀粉酶表达。[方法]以甜高梁品种KF0680．1和KF0680—2为研究对象，对盐胁迫条件下甜高粱的萌发相关指标和α-淀粉酶的表达进行测定，探讨盐胁迫对2个甜高粱品种的影响。[结果]低浓度的盐胁迫对甜高粱的萌发有一定的促进作用，高浓度的盐胁迫则抑制了甜高粱萌发；在高浓度盐胁迫下根和幼苗的长度均小于水处理组，但适当的盐胁迫促进了2个品种α-淀粉酶的表达。[结论]该研究表明盐胁迫对KF0680—1和KF0680—22个甜高粱品种的生长均有抑制作用，但在低盐浓度条件下，KF0680—2比KF0680—1具有更好的抗盐性。同时适当的盐胁迫提高了种子中α-淀粉酶的表达量。该结果为选育出适宜西北地区种桔的精怂耐甜寓竖鼎釉耀杜了象老优棍
[목적]연구2개첨고량품충KF0680—1화KF0680．2재염협박조건하적맹발특성급기α-정분매표체。[방법]이첨고량품충KF0680．1화KF0680—2위연구대상，대염협박조건하첨고량적맹발상관지표화α-정분매적표체진행측정，탐토염협박대2개첨고량품충적영향。[결과]저농도적염협박대첨고량적맹발유일정적촉진작용，고농도적염협박칙억제료첨고량맹발；재고농도염협박하근화유묘적장도균소우수처리조，단괄당적염협박촉진료2개품충α-정분매적표체。[결론]해연구표명염협박대KF0680—1화KF0680—22개첨고량품충적생장균유억제작용，단재저염농도조건하，KF0680—2비KF0680—1구유경호적항염성。동시괄당적염협박제고료충자중α-정분매적표체량。해결과위선육출괄의서북지구충길적정종내첨우수정유요두료상로우곤
[Objective] The aim was to study on germination and expression of α-amy- lase of KF0680-1 and KF0680-2 （cultivars of sweet sorghum） under salt stress. [Method] In the research, KF0680-1 and KF0680-2, cultivars of sweet sorghum, were used to measure related indices of germination and expression of co-amylase to discuss effect of salt stress on two cultivars. [Result] Germination of sweet sorghum would be promoted if treated with salt in low concentration and inhibited if treated in high concentration. In the latter condition, roots and seedlings were smaller than that of control group in length, but expression of s-amylase in the two cultivars was pro- moted under proper salt stress. [Conclusion] The research indicates that KF0680-1 and KF0680-2 are inhibited in growth by salt stress and the latter is stronger in salt resis- tance than the former under low salt concentration. In addition, expression of α-amy- lase could be promoted by salt in proper volume. The results provide references for selection of sweet sorghum which could be planted in northwestern areas.