PDF(Pubmed)
Abstract：
Salinity stress significantly hinders plant growth by disrupting osmotic balance and inhibiting nutrient uptake, leading to reduced biomass and stunted development. Using saponin (SAP) and boron (B) can effectively overcome this issue. Boron decreases salinity stress by stabilizing cell walls and membranes, regulating ion balance, activating antioxidant enzymes, and enhancing water uptake. SAP are bioactive compounds that have the potential to alleviate salinity stress by improving nutrient uptake, modulating plant hormone levels, promoting root growth, and stimulating antioxidant activity. That\'s why the current study was planned to use a combination of SAP and boron as amendments to mitigate salinity stress in sweet potatoes. Four levels of SAP (0%, 0.1%, 0.15%, and 0.20%) and B (control, 5, 10, and 20 mg/L B) were applied in 4 replications following a completely randomized design. Results illustrated that 0.15% SAP with 20 mg/L B caused significant enhancement in sweet potato vine length (13.12%), vine weight (12.86%), root weight (8.31%), over control under salinity stress. A significant improvement in sweet potato chlorophyll a (9.84%), chlorophyll b (20.20%), total chlorophyll (13.94%), photosynthetic rate (17.69%), transpiration rate (16.03%), and stomatal conductance (17.59%) contrast to control under salinity stress prove the effectiveness of 0.15% SAP + 20 mg/L B treatment. In conclusion, 0.15% SAP + 20 mg/L B is recommended to mitigate salinity stress in sweet potatoes.
摘要：
盐度胁迫通过破坏渗透平衡和抑制养分吸收来显著阻碍植物生长，导致生物量减少和发育迟缓。使用皂苷（SAP）和硼（B）可以有效地克服这个问题。硼通过稳定细胞壁和细胞膜来降低盐度应力，调节离子平衡，激活抗氧化酶，和提高水的吸收。SAP是生物活性化合物，有可能通过改善营养吸收来缓解盐度胁迫。调节植物激素水平，促进根系生长，和刺激抗氧化活性。这就是为什么当前的研究计划使用SAP和硼的组合作为缓解甘薯中盐度胁迫的修正。四个水平的SAP(0%，0.1%,0.15%,和0.20%)和B(对照，5、10和20mg/LB）在完全随机设计后以4次重复施用。结果表明，0.15%SAP与20mg/LB引起的甘薯藤长显著增加（13.12%），藤蔓重量（12.86%），根重（8.31%），在盐度胁迫下过度控制。显著提高甘薯叶绿素a(9.84%),叶绿素b（20.20%），总叶绿素（13.94%），光合速率(17.69%),蒸腾速率（16.03%），与盐度胁迫下的对照组相比，气孔导度（17.59％）证明了0.15％SAP20mg/LB处理的有效性。总之,建议使用0.15％SAP20mg/LB来减轻甘薯的盐度胁迫。
