文献类型： 外文期刊
第一作者： Rastogi, A.
作者： Rastogi, A.;Kovar, M.;Zivcak, M.;Brestic, M.;He, X.;Kataria, S.;Kalaji, H. M.;Skalicky, M.;Brestic, M.;Ibrahimova, U. F.;Hussain, S.;Mbarki, S.
作者机构：
关键词： abiotic stress; chlorophyll fluorescence; photosynthesis
期刊名称：PHOTOSYNTHETICA （ 影响因子：3.189； 五年影响因子：3.38 ）
ISSN： 0300-3604
年卷期： 2020 年 58 卷 2 期
页码：
收录情况： SCI
摘要： The effect of salinity on primary photochemical reactions (using JIP-test) in six sweet sorghum genotypes was tested. An increase in salt concentrations induced significantly the accumulation of proline and caused a decline in leaf osmotic potential. Except for 100 mM NaCl concentration, salinity significantly decreased chlorophyll content and photosynthetic efficiency of plants. Increasing salinity led to a higher accumulation of QB-nonreducing PSII reaction centers. K-step in OJIP fluorescence transient was observed for the most sensitive genotypes under the high NaCl concentration. The studied sorghum genotypes responded differently to salinity stress. Thus, the study helps understand the plant tolerance mechanisms of different sweet sorghum genotypes to increasing salinity stress. The study also confirmed that the use of JIP-test is suitable for the identification of sorghum genotypes according to their growth under salinity stress.
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