CAJ | 학술논문

通过NaCl胁迫发芽试验、盆栽浇灌NaCl盐水试验、不同含盐量土壤的种植试验,研究二色补血草(Limonium bicolor)3个时期的耐盐能力.结果表明:高浓度NaCl对二色补血草种子的萌发有明显的抑制作用,种子的发芽率与盐浓度之间呈显著的负相关,种子萌发时盐胁迫的适宜值、临界值、极限值分别是0.49%、1.30%、2.11%;盆栽试验结果表明,二色补血草在2.0%以下的NaCl盐水胁迫下没有表现明显的盐害症状,只表现高浓度NaCl胁迫下,生长量低于低浓度处理的,当处理浓度达到2.4%时,多数植株濒临死亡;不同含盐量土壤的种植试验结果表明,在自然条件下,二色补血草成株耐盐临界值为1.7%～1.8%.试验结果说明二色补血草具有较强的耐盐能力,适合在滩涂盐碱地推广种植.
통과NaCl협박발아시험、분재요관NaCl염수시험、불동함염량토양적충식시험,연구이색보혈초(Limonium bicolor)3개시기적내염능력.결과표명:고농도NaCl대이색보혈초충자적맹발유명현적억제작용,충자적발아솔여염농도지간정현저적부상관,충자맹발시염협박적괄의치、림계치、겁한치분별시0.49%、1.30%、2.11%;분재시험결과표명,이색보혈초재2.0%이하적NaCl염수협박하몰유표현명현적염해증상,지표현고농도NaCl협박하,생장량저우저농도처리적,당처리농도체도2.4%시,다수식주빈림사망;불동함염량토양적충식시험결과표명,재자연조건하,이색보혈초성주내염림계치위1.7%～1.8%.시험결과설명이색보혈초구유교강적내염능력,괄합재탄도염감지추엄충식.
The salt-tolerance capability of Limonium bicolor was studied by germination under NaCl stress.Brine irrigating in bole and plant in the different salt soil at three critical growth stages.The results showed that under high dendity NaCl stress the inhibitive effect on seed germination was obvious.The seed germination rate was in negative relation to NaCl content.The appropriate parameters,limit value,critical concentration of salt stress is repectively 0.49%,1.30%,2.11%;The results of pot experiment showed that L. bicolor had no obviously salt damage less than 2.0%.It only displayed low biomass of high concentration of NaCl stress.The treatment of concentration was less.The majority was close to dead in 2.4%.The results of plant experiment showed that the salt-tolerance limit value of adult-plant is1.7%-1.8%.L. bicolor has high value in directoring the large-scale plant in flat saline soil.