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在不同浓度NaCl胁迫下,通过光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)、胞间CO2浓度(Ci)、叶绿素(Chl)、丙二醛(MDA)、游离脯氨酸(Pro)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的测定,运用主成分分析法和模糊隶属函数法对30份国外引进的大麦Hordeumvulgare品种(系)耐盐性进行综合分析。结果表明:随着NaCl浓度增大,引进大麦品种(系)除SOD、CAT和Pro外,其他指标与对照相比均有所下降。根据综合评价值可知,其耐盐性由强到弱为:22-25>22-30>DH-116>Tabigha>Modaba>22-55>DH-55>22-28>Tarpgolbor>KoRv>KHEMUS>Steptoe>Harrington>Clipper>Jrbid>Cpyrus>DH-66>Prior>Morex>22-43>TObarley>Barbican>22-42>DH-40>Schooner>DH-127>Kerab>Sloop>Yahudiya>DH-126。
Under different concentrations of NaCl stress, photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), intercellular CO2 concentration (Ci), chlorophyll (Chl), malondialdehyde (MDA) (Pro), superoxide dismutase (SOD) and catalase (CAT) were measured. The salt tolerance of 30 imported barley Hordeumvulgare varieties (lines) was analyzed by using principal component analysis and fuzzy membership function Comprehensive analysis. The results showed that with the increase of NaCl concentration, the introduction of barley varieties (lines) in addition to SOD, CAT and Pro, the other indicators were decreased compared with the control. According to the results of the comprehensive evaluation, the salt tolerance of the plants is 22-25> 22-30> DH-116> Tabigha> Modaba> 22-55> DH-55> 22-28> Tarpgolbor> KoRv> KHEMUS> Steppoe> Harrington> Clipper> Jrbid> Cpyrus> DH-66> Prior> Morex> 22-43> TObarley> Barbican> 22-42> DH-40> Schooner> DH-127> Kerab> Sloop> Yahudiya> DH-126.