CAJ | 학술논문

以萌发15d的多年生黑麦草小苗为试验材料，采用全组合试验设计，研究了外施海藻糖（0、0．2％、0．6％）对不同NaCl浓度（0、0．5％、1．0％）胁迫下黑麦草生长和离子平衡的影响。结果表明：（1）适宜的海藻糖浓度（0．2％）显著（p〈0．05）提高了高盐（1．0％NaCl）胁迫下黑麦草的分蘖数，缓解了高盐对其生长的抑制作用；（2）0．6％海藻糖处理显著（p〈0．05）增加了0．5％和1．0％盐胁迫下的叶重比，但降低了根重比和根冠比。（3）高盐（1．0％NaCl）胁迫下，0．2％海藻糖处理的植株，K啥量明显高于其他处理，海藻糖促进了K＋在根中的积累。外施0．2％海藻糖对相同盐浓度胁迫下各海藻糖处理中K＋／Na＋比率最高。
이맹발15d적다년생흑맥초소묘위시험재료，채용전조합시험설계，연구료외시해조당（0、0．2％、0．6％）대불동NaCl농도（0、0．5％、1．0％）협박하흑맥초생장화리자평형적영향。결과표명：（1）괄의적해조당농도（0．2％）현저（p〈0．05）제고료고염（1．0％NaCl）협박하흑맥초적분얼수，완해료고염대기생장적억제작용；（2）0．6％해조당처리현저（p〈0．05）증가료0．5％화1．0％염협박하적협중비，단강저료근중비화근관비。（3）고염（1．0％NaCl）협박하，0．2％해조당처리적식주，K사량명현고우기타처리，해조당촉진료K＋재근중적적루。외시0．2％해조당대상동염농도협박하각해조당처리중K＋／Na＋비솔최고。
In this paper the seedlings of Lolium perenne were used as the experimental materials and the full combination experimental design was adopted. The effects of exogenous trehalose (0,0.2%,0.6%)on the growth and ion balance of Lolium perenne under NaC1 stress of different concentrations(0,0.5%, 1.0%) were studied. The following results were obtained. 1. The tiller number of Lolium perenne under high NaC1 stress (1.0%) was increased significantly (p 〈0.05) with an appropriate concentration of trehalose(0.2%), which relieved the inhibiting effect of high NaC1 on the growth of the seedlings. 2. The leaf weight ratio of the seedlings under NaC1 stress of 0.5% and 1.0% was increased significanty (p〈0.05) with the treatment of 0.6% trehalose, but the root weight ratio and the root/shoot ratio were lowered with the treatment. 3. Under high NaC1 stress (1.0%), the K+ contents in the seedlings treated with 0.2% trehalose were significantly higher than those with other treatments. Trehalose promoted the accumulation of K+ in the roots. Under NaC1 stress of the same concentration, the K+/N+ ratio was the highest in the roots of the seedlings with the exogenous application of 0.2% trehalose.