Efficacy of Humic Acids and Chitosan for Enhancing Yield and Sugar Quality of Sugar Beet Under Moderate and Severe Drought

Makhlouf, B.S.I.; Khalil, Shahid Akbar; Saudy, Hani Saber

doi:10.1007/s42729-022-00762-7

Cited by 85 publications

(34 citation statements)

References 56 publications

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“…Sugar beet plants naturally adapt to tolerate salinity up to electric conductivity of 7.0 dS m −1 in growth media without a considerable yield reduction, and each additional EC unit causes a 5.9% yield loss (Grieve et al 2012). Salinity adversely affects crop growth and survival by instigating osmotic and drought stressors, which results in ionic misbalance due to high accretion of sodium (Na + ) and chlorine (Cl − ) ions, leading to specific ions cytotoxicity (Wu et al 2015b;Dadkhah and Rassam 2017;Abd-Elrahman et al 2022;Makhlouf et al 2022). When Na + accretion surpasses the normal level, it turns to be highly deleterious to plant growth owing to cell ionic homeostasis discrepancy by prompting cytosolic K + flux from cells (Shabala and Pottosin 2014;Semida et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Physio-biochemical and Agronomic Changes of Two Sugar Beet Cultivars Grown in Saline Soil as Influenced by Potassium Fertilizer

El–Mageed

Mekdad

Rady

et al. 2022

J Soil Sci Plant Nutr

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In salt-affected soils, more than one approach should be adopted for minimizing the salinity impacts and enhancing the land productivity. The most effective practices in crop management under saline soil are choosing the plant type and variety and exploiting the best nutrient tactics. Under two soil salinity levels (3.54 and 9.28 dS m−1), representing low and high salinity, respectively), two sugar beet cultivars (Romulus and Francesca) were fertilized with three potassium (K) rates (48, 96, and 144 kg K ha−1), in addition to the check treatment (0 kg K ha−1). During two seasons of 2018/2019 and 2019/2020, treatments were distributed in a split-split plot design based on a randomized complete block arrangement with three replicates. Several physio-biochemical and agronomic traits, as well as leaf mineral contents and juice quality, were assessed. Briefly, findings illustrated that K at a rate of 144 kg ha−1 enhanced cell membrane stability, relative water content, and performance index by 1.17, 1.01, and 2.73 times, respectively, in high salinity soil, compared to low salinity × no K addition. Under high salinity, the addition of 48 and 144 kg K ha−1 recorded the highest values of total phenolic content and total antioxidant activity, respectively. In high salinity soil, K supplying (144 kg ha−1) caused the maximum improvements in gross and white sugar content with a decrease of 42.0% in sodium content and an increase of 35.9% in root yield ha−1. Romulus cultivar fertilized with 144 kg K ha−1 had the maximum relative water content, Fv/Fm, and performance index. Francesca cultivar with 144 kg K ha−1 was the potent combination for increasing total soluble sugars, total phenolic content, total flavonoid content, and total antioxidant activity. Romulus cultivar fertilized with 144 kg K ha−1 was the best practice for improving all agronomic traits of sugar beet. It could be concluded that a high potassium rate, i.e., 144 kg K ha−1, reduced the injury ionic impacts of saline soils along with improving the genetic makeup of sugar beet cultivars, expressed in sugar yield and quality. However, all other attempts for reclamation of the saline soil should be adopted for increasing the potentiality of K fertilizer and enhancing gene expressions of different sugar beet varieties.

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Section: Introductionmentioning

confidence: 99%

Physio-biochemical and Agronomic Changes of Two Sugar Beet Cultivars Grown in Saline Soil as Influenced by Potassium Fertilizer

El–Mageed

Mekdad

Rady

et al. 2022

J Soil Sci Plant Nutr

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“…Owing to severe water stress, chloroplast is the first sign to be injured, since it is the master site for production of reactive oxygen species (ROS) (Munné-Bosch and Peñuelas 2003). Also, water deficit promotes production of abscisic acid, which reduces carbon dioxide influx and inhibits photosynthesis by stimulating stomata closure (Chaves et al 2009;Makhlouf et al 2022). The paucity of intracellular CO 2 due to extended stomatal closure causes the cumulation of ROS and damages the photosynthetic system (Laxa et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of Irrigation Water and Organic Fertilizer on Reducing Nitrate Accumulation and Boosting Lettuce Productivity

Abd-Elrahman

Saudy

El–Fattah

et al. 2022

J Soil Sci Plant Nutr

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Accumulation of high level of nitrate (NO3−) in leaves is a serious issue for vegetable crops like lettuce (Lactuca sativa L.). Therefore, this study aimed to limit NO3− level by adjusting the balance between fertilization and irrigation program in lettuce. In a strip plot design with three replicates, lettuce plants were grown under four fertilizer treatments and three irrigation regimes. Three organic fertilizers (biochar, compost and vermicompost), in addition to mineral fertilizer, were used. The irrigation regimes were 60, 80 and 100% of crop evapotranspiration, ETc (ETc60, ETc80, and ETc100). Nitrogen (N), phosphorus (P) potassium (K) and organic matter (OM) in soil as well as yield, N, P, K and NO3− of lettuce were estimated. Findings showed that vermicompost or biochar (with any irrigation regime) as well as compost with irrigation by ETc60 were the effective combinations for increasing K content in soil after harvest. Under irrigation by ETc80 or ETc100, vermicompost or biochar were the efficient treatments for increasing lettuce yield equaling the farmer common practice (ETc100 x mineral fertilizer). Under irrigation by ETc60, mineral fertilizer or vermicompost showed the highest lettuce leaf content of K. Moreover, ETc60 or ETc80 x mineral fertilizer recorded the maximum NO3− content of lettuce leaves. The accumulation of nitrate in lettuce leaves owing to mineral fertilizer reached about 1.24 times than that of organic fertilizers. Compost x ETc80 or ETc100 showed the minimal NO3–N accumulation, hence, high relative reductions in NO3–N accumulation as compared to the common practice (ETc100 x mineral fertilizer) were observed. In conclusion, irrigation by 80% instead of 100% of crop evapotranspiration of organically fertilized lettuce (especially with vermicompost) could be adopted since such practice recorded high lettuce productivity with low NO3− content.

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“…In this regard, it has been reported that deficit irrigation reduces plant growth by affecting various physiological and biochemical processes, such as photosynthesis, respiration, translocation, ion uptake, carbohydrates, nutrient metabolism, and growth promoters (Farooq et al 2008;Razmjoo et al 2008;Salem et al 2021). Also, reducing water supply caused severe depression in plant physio-logical, anatomical, and agronomic traits (El-Bially et al 2018;Makhlouf et al 2022). In the stressed plants accumulation of abscisic acid is stimulated in leaves, which sets up ionic imbalance that compels potassium ion (K + ) to leak out from guard cells and loss of guard cell turgor pressure.…”

Section: Discussionmentioning

confidence: 99%

“…In the stressed plants accumulation of abscisic acid is stimulated in leaves, which sets up ionic imbalance that compels potassium ion (K + ) to leak out from guard cells and loss of guard cell turgor pressure. Thus, narrowing the aperture mostly would be due to reduced leaf relative water content and increased stomatal closure (Abd El-Mageed et al 2021;Makhlouf et al 2022). Water deficit reduced the concentration of N and P in plant tissue (He and Dijkstra 2014) and decreased nutrient uptake from soil (Ge et al 2012;Sardans and Peñuelas 2012).…”

Section: Discussionmentioning

confidence: 99%

Influence of Silicon Forms on Nutrients Accumulation and Grain Yield of Wheat Under Water Deficit Conditions

et al. 2022

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Wheat productivity is severely hampered by drought, owing to its negative impacts on crop growth and development. For obtaining better yield, the impacts of drought should be ameliorated. Therefore, the current study scrutinizes the potential of different silicon (Si) forms to minify the drought-associated reduction in yield and the changes in nutrients accumulation. In a strip plots design based on randomized complete block arrangement using 3 replicates, two field experiments were carried out in 2019/20 and 2020/21 seasons. Three silicon (Si) forms (potassium silicate, calcium silicate, and aluminum silicate), in addition to the control (tap water) were sprayed. Also, three irrigation regimes were applied as ratio of crop evapotranspiration (60, 80 and 100%, denoted Irr60, Irr80 and Irr100, respectively). Findings clarified that application of aluminum silicate in both seasons, in addition to calcium silicate in the second season recorded the maximum accumulation of Si in wheat plants. Supplying wheat plants with different forms of Si reduced zinc (Zn) and manganese (Mn) and increased Si compared to the control (no Si application). Irr100 possessed increase in accumulation of Si in plant tissues greater than Irr80 or Irr60. Significant increases in all agronomic traits of wheat were obtained owing to spraying any Si form compared to the control. The differences between potassium silicate, calcium silicate, and aluminum silicate were not significant in flag leaf greenness (SPAD value), grains weight spike−1, weight of 1000 grains, and grain yield ha−1 in 2020/21 season. Irr100 was the effective treatment for enhancing SPAD value, spike length, grains weight spike−1, weight of 1000 grains, and grain yield ha−1. When irrigation water was reduced by 20% (Irr80), the lowest reduction in grain yield was obtained with potassium silicate compared to other forms of Si. It could be concluded that since lower accumulation of Si in plant tissues under water deficit than well-watered was recorded, the spraying of Si is great of importance to be applied under drought stress.

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Efficacy of Humic Acids and Chitosan for Enhancing Yield and Sugar Quality of Sugar Beet Under Moderate and Severe Drought

Cited by 85 publications

References 56 publications

Physio-biochemical and Agronomic Changes of Two Sugar Beet Cultivars Grown in Saline Soil as Influenced by Potassium Fertilizer

Physio-biochemical and Agronomic Changes of Two Sugar Beet Cultivars Grown in Saline Soil as Influenced by Potassium Fertilizer

Effect of Irrigation Water and Organic Fertilizer on Reducing Nitrate Accumulation and Boosting Lettuce Productivity

Influence of Silicon Forms on Nutrients Accumulation and Grain Yield of Wheat Under Water Deficit Conditions

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