Table 3 in Drought Stress in Millets and Its Response Mechanism

Table 3. Effect of water stress on millets crop. CropDrought stressEffect on plantReferencesFinger milletDrought stress was applied in two regimes (fully irrigated and after drought)Significant reduction in leaf area, dry matter accumulation, seed weight, radiation use efficiency and yield[21]Finger milletDrought stress was applied in two regimes (fully irrigated and after drought)Results showed that reduction in plants growth, chlorophyll content due to drought stress[22]Pearl milletAfter 3 weeks of germination drought stress was induced by ceasing water for 4 weeksThey observed a significant reduction in plant height, biomass, panicle, stalk length, no. of leaves, total grain number and weight[23]Finger millet and barnyard milletWater stress was given (control, mild, medium, and severe conditionA significant reduction in chlorophyll content while MDA, proline and CAT activity increased during stress[24]Finger millet and barnyard milletWater stress was given (control, mild, medium, and severe conditionSignificant reduction in protein, carbohydrate, amylase and relative water content[25]Finger milletStress was given to plant by holding irrigation to 45-day old plantsTheir results showed droopy, curling leaves, increased amount of proline, MDA, electrolyte leakage, Hydrogen peroxide and antioxidant activities.[16]Proso milletWell- watered, drought stress at vegetative stage, ear emergence stage, seed filling stage and vegetative and seed filling stagesDrought stress results reduction in grain yield,Water use efficiency and harvest index[26]Pearl millet and sorghumControlled and stressed conditionResults showed that under water stress condition leaf water potential, rates of stomatal conductance, photosynthesis and transpiration decreased more in sorghum than in pearl millet[27]表3 水分胁迫对粟类作物的影响 1. 龙爪稷（Finger millet）：设置两种干旱胁迫处理模式（全灌溉组与干旱胁迫组），植株叶面积、干物质积累量、籽粒重量、光能利用效率与产量均显著降低[21] 2. 龙爪稷（Finger millet）：设置两种干旱胁迫处理模式（全灌溉组与干旱胁迫组），研究结果显示干旱胁迫会抑制植株生长并降低叶绿素含量[22] 3. 珍珠粟（Pearl millet）：萌发3周后停止供水4周以诱导干旱胁迫，结果显示株高、生物量、穗长、茎秆长度、叶片数、总粒数与粒重均显著降低[23] 4. 龙爪稷（Finger millet）与稗谷（barnyard millet）：设置水分胁迫处理（对照组、轻度、中度与重度胁迫组），胁迫过程中叶绿素含量显著降低，而丙二醛（Malondialdehyde, MDA）、脯氨酸与过氧化氢酶（Catalase, CAT）活性均升高[24] 5. 龙爪稷（Finger millet）与稗谷（barnyard millet）：设置水分胁迫处理（对照组、轻度、中度与重度胁迫组），蛋白质、碳水化合物、淀粉酶活性与相对含水量均显著降低[25] 6. 龙爪稷（Finger millet）：对45日龄植株停止灌溉以施加胁迫，结果显示植株出现萎蔫、叶片卷曲，脯氨酸、丙二醛、电解质渗漏率、过氧化氢含量与抗氧化酶活性均升高[16] 7. 稷（Proso millet）：设置充分灌溉、营养生长期干旱胁迫、抽穗期干旱胁迫、灌浆期干旱胁迫以及营养生长期与灌浆期双重干旱胁迫处理，干旱胁迫会导致籽粒产量、水分利用效率与收获指数降低[26] 8. 珍珠粟（Pearl millet）与高粱（sorghum）：设置对照组与胁迫组，结果显示水分胁迫下高粱的叶片水势、气孔导度、光合速率与蒸腾速率下降幅度均大于珍珠粟[27]