CAJ | 학술논문

选取小麦（Triticum aestivum Linn.）为供试植物，利用盆栽试验研究了不同添加量的硅（0、50、100 mg·kg-1）对高硼（300 mg· kg-1）高盐（5 g·kg-1氯化钠）胁迫下植物生长以及对主要无机离子吸收的影响。结果表明，在硼盐联合胁迫下，硅能够提高小麦生物量，抑制对硼和钠的吸收，促进钾的吸收，降低植株钠钾比（Na/K），对钙、镁离子的吸收则没有显著影响。100 mg·kg-1硅处理对硼盐联合胁迫的缓解效果大于50 mg·kg-1硅处理。研究认为，硅能够通过抑制小麦对硼和钠的吸收，促进钾的吸收，缓解硼和盐联合胁迫对小麦生长的抑制作用。
선취소맥（Triticum aestivum Linn.）위공시식물，이용분재시험연구료불동첨가량적규（0、50、100 mg·kg-1）대고붕（300 mg· kg-1）고염（5 g·kg-1록화납）협박하식물생장이급대주요무궤리자흡수적영향。결과표명，재붕염연합협박하，규능구제고소맥생물량，억제대붕화납적흡수，촉진갑적흡수，강저식주납갑비（Na/K），대개、미리자적흡수칙몰유현저영향。100 mg·kg-1규처리대붕염연합협박적완해효과대우50 mg·kg-1규처리。연구인위，규능구통과억제소맥대붕화납적흡수，촉진갑적흡수，완해붕화염연합협박대소맥생장적억제작용。
Silicon(Si)has showed to improve the tolerance of plants to abiotic stresses. However, it is still unclear whether Si can enhance plant tolerance to combined stresses of excessive B and high salinity. A pot experiment was conducted with wheat(Triticum aestivum Linn.) grown in combined B(300 mg·kg-1), salinity(5 g·kg-1 NaCl), and Si(0 mg·kg-1, 50 mg·kg-1, and 100 mg·kg-1)to investigate the growth and ion uptake of wheat. Silicon increased wheat biomass and potassium(K)uptake, but inhibited the uptake of B and sodium(Na), thus re-ducing the tissue Na/K ratios. Silicon showed no significant effects on calcium(Ca)and magnesium(Mg)uptake. A greater alleviating effect of Si on combined stresses of B and salinity was observed under 100 mg Si·kg-1 than under 50 mg Si·kg-1. These results suggest that Si is able to alleviate the inhibition of wheat growth by combined stress of B and salinity via reducing B and Na accumulation and promoting K uptake.