CAJ | 학술논문

通过对徐州1号、徐州2号、南充1号、大兴1号4个菊芋品种进行不同盐浓度模拟海水处理，结果表明：在盐胁迫下，不同基因型菊芋品种的产量均有所下降，且随着盐分浓度的增加，产量的下降幅度增加，最大下降幅度达到93．9％；当用75％盐水浇灌时，所有品种几乎都不能生长，植株叶色变黄脱落，受伤严重，产量受到很大影响。对盐胁迫后的菊芋块茎进行理化分析，菊芋块茎中总糖、还原糖、菊糖含量均在25％浓度盐分胁迫下略有增加，说明不同基因型品种对盐胁迫有自我调节保护机制，产生一定的适应能力，但是随着盐分浓度增加，各种糖分含量均下降，说明随着胁迫增加植株自我调节能力减退，从而导致各种营养成分含量下降。综合分析品种的耐受度、产量、含糖量等多种因素，以徐州2号和徐州1号对盐胁迫有较好的耐受性。
통과대서주1호、서주2호、남충1호、대흥1호4개국우품충진행불동염농도모의해수처리，결과표명：재염협박하，불동기인형국우품충적산량균유소하강，차수착염분농도적증가，산량적하강폭도증가，최대하강폭도체도93．9％；당용75％염수요관시，소유품충궤호도불능생장，식주협색변황탈락，수상엄중，산량수도흔대영향。대염협박후적국우괴경진행이화분석，국우괴경중총당、환원당、국당함량균재25％농도염분협박하략유증가，설명불동기인형품충대염협박유자아조절보호궤제，산생일정적괄응능력，단시수착염분농도증가，각충당분함량균하강，설명수착협박증가식주자아조절능력감퇴，종이도치각충영양성분함량하강。종합분석품충적내수도、산량、함당량등다충인소，이서주2호화서주1호대염협박유교호적내수성。
Four Helianthus tuberosus genotypes or varieties (Xuzhou No.1, Xuzhou No.2, Nanchong No.1 and Daxing No. 1) were treated by the simulative seawater with different salt concentrations .The results showed that:under salt stress, the yield of different Helianthus tuberosus genotypes all decreased with the increase of salt concentration , and the maximum decline rate in yield reached 93.9%.When 75%salt water was used for irrigation , all varieties did almost not grow , their leaves became yellow or fell off, the plants were seriously injured , and the yields were greatly affected .Through the physical and chemical analysis , it was found that the total sugar , reducing sugar and inulin contents in the tubers of Helianthus tuberosus under 25% salt stress were increased slightly, but they all decreased with the increase of salt concentration , indicating that different Helianthus tuberosus genotypes (vari-eties) had self-regulation protection mechanism and a certain adaptability to salt stress , but their self-adjustment ability declined when salt concentration increased .By comprehensive analysis of tolerance , yield and sugar content of various varieties , Xuzhou No . 2 and Xuzhou No .1 had better tolerance to salt stress .