Attenuators of salt-stress favor the use of effluents, being a low-cost organic product. The present study aimed to evaluate the effect of vermicompost leachate (VL) added to shrimp-culture effluent on seeds and seedlings of Salicornia bigelovii (Torr.) under salt-stress, evaluating germination, water relations variables, and biomass. Seeds were irrigated with distilled water (DW) (CE: 0.0027 dS m⁻¹), freshwater (FW) (CE: 1.36 dS m⁻¹), seawater (SW) (CE: 55.83 dS m⁻¹), shrimp residual water (SRW) (CE: 59.85 dS m⁻¹), and with the same water sources but adding VL in 1:20 v/v. The means for the index of germination rate (IGR), germination energy (GE), and germination time (MGT) were higher with DW, DWVL, FW, and FWVL, decreasing with the others (p ≤ 0.05). In seedlings, the lowest water potential (Ψw) and osmotic potential (Ψs) were observed with SW, SWVL, SRW, and SRWVL (p ≤ 0.05), evidencing higher stress but the highest relative water content (RWC). The fresh and dry biomass increased and showed significant differences with SRW, and adding VL (DWVL, FWVL, SWVL, and SRWVL) acted as an effective attenuator of salt-stress. The response of water relations variables suggested an osmotic adjustment for mitigating the salt-stress in seedlings, lowering the Ψw and Ψs but increasing the RWC.

中文翻译：

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虾养殖废水下大戟柳的萌发和Ver草浸出液在缓解盐胁迫中的应用

盐胁迫的衰减剂有利于废水的使用，废水是一种低成本的有机产品。本研究旨在评估在盐胁迫下，虾类养殖废水中添加的com堆浸出液（VL）对Salicornia bigelovii（Torr。）种子和幼苗的影响，评估萌发，水分关系变量和生物量。用蒸馏水（DW）（CE：0.0027 dS m ^-1），淡水（FW）（CE：1.36 dS m ^-1），海水（SW）（CE：55.83 dS m ^-1），虾残水灌溉种子（SRW）（CE：59.85 dS m ^-1），并且具有相同的水源，但以1:20 v / v添加VL。发芽率（IGR），发芽能量（GE），和发芽时间（MGT）的索引的装置均高于用DW，DWVL，FW和FWVL，与其他（降低p ≤0.05）。在苗，最低水势（Ψw）和渗透势（Ψs）与SW，SWVL，SRW，和SRWVL（观察到p ≤0.05），证明较高的应力，但最高相对水含量（RWC）。新鲜和干燥的生物量增加，并显示出与SRW的显着差异，添加VL（DWVL，FWVL，SWVL和SRWVL）可有效缓解盐胁迫。水分关系变量的响应表明，应进行渗透调节以减轻幼苗的盐胁迫，降低lowerw和Ψs，但增加RWC。