CAJ | 학술논문

通过对银沙槐(Ammodendron bifolium(Pall·)Jakovl.)种子在不同钠盐(NaCl、NaHCO_3、Na_2CO_3)溶液中萌发情况的研究,旨在探索银沙槐种子在不同盐胁迫下的萌发特性.结果表明:种子的萌发率与3种钠盐溶液浓度均呈显著负相关(P<0.05);3种钠盐均对种子的根长影响较苗高大;随着盐溶液胁迫时间的推移,种子的相对萌发势和萌发势不断上升;随着不同钠盐浓度的升高,种子相对萌发势、简化活力指数和发芽指数都显著下降(P<0.05).综合以上各种萌发特征结果得出:银沙槐种子对3种钠盐耐受性为NaHCO_3>NaCl>Na_3CO_3;弱碱性盐可以促进银沙槐种子的耐盐性.
통과대은사괴(Ammodendron bifolium(Pall·)Jakovl.)충자재불동납염(NaCl、NaHCO_3、Na_2CO_3)용액중맹발정황적연구,지재탐색은사괴충자재불동염협박하적맹발특성.결과표명:충자적맹발솔여3충납염용액농도균정현저부상관(P<0.05);3충납염균대충자적근장영향교묘고대;수착염용액협박시간적추이,충자적상대맹발세화맹발세불단상승;수착불동납염농도적승고,충자상대맹발세、간화활력지수화발아지수도현저하강(P<0.05).종합이상각충맹발특정결과득출:은사괴충자대3충납염내수성위NaHCO_3>NaCl>Na_3CO_3;약감성염가이촉진은사괴충자적내염성.
This study researched the seeds germination characteristics of Ammodendron bifolium(Pall·) Jakovl. under different sodium salt stress. The result showed that notable negative interrelation among the seeds germination percentage and three kind of sodium salt viscosity(p <0. 05) ;the influence of three kind of sodium salt to the length of seedlings' root was more significant than the length of sprout;along with the process of salt stress, the seed' s relative germination tendency and germination tendency continuously increased; along with the ascend of different sodium salt viscosity, the seed' s relative germination tendency, the simple vitality index and the germination index decreased continuously. Synthesized all the germination characteristics, the endurance of Ammodendron bifolium (Pall·) Jakovl. seeds to three kinds of sodium salt solution was: NaHCO_3>NaCl > Na_2CO_3 ;weak alkalescence salt could promote the endurance of Ammodendron bifolium (Pall·) Jakovl. seeds to alkalescence salt.