Yield and quality of two sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima Döll) cultivars are influenced by foliar application of salicylic acid, irrigation timing, and planting density

Abdelaal, Khaled; Rashed, Sahar H.; Hossain, Akbar; Sabagh, Ayman El

doi:10.14720/aas.2020.115.2.1159

Cited by 22 publications

(19 citation statements)

References 25 publications

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“…Plant growth and development are usually associated with plant cell elongation and division, which are negatively affected by drought, thus damaging cellular differentiation and plant growth as well as yield [2,5,9]. Similar results were observed in flax [36], sugar beet [37] and wheat [38]. The fact that leaf area is negatively affected under drought conditions could be due to the reduction in leaf numbers, size and longevity, depending also on temperature, leaf turgor pressure and assimilation rate [39,40].…”

Section: Morphological and Anatomical Responsessupporting

confidence: 65%

“…Malondialdehyde (MDA) and electrolyte leakage (EL) are important signals of stress; these parameters considerably increase under various stresses such as salinity [60][61][62][63][64] and drought [8,9,12,58], resulting in deleterious effects on plasma membrane stability and selective permeability [2,37,46]. Furthermore, the increase in MDA could be due to the oxidative damage to chloroplasts and mitochondria, indicating an increased rate of lipid peroxidation.…”

Section: Oxidative Damage By Lipid Peroxidation (Mda Accumulation) and Electrolyte Leakage (El)mentioning

confidence: 99%

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The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants

Abdelaal

AlKahtani

Attia

et al. 2021

Biology

160

100

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Plant growth-promoting bacteria play an essential role in enhancing the physical, chemical and biological characters of soils by facilitating nutrient uptake and water flow, especially under abiotic stress conditions, which are major constrains to agricultural development and production. Drought is one of the most harmful abiotic stress and perhaps the most severe problem facing agricultural sustainability, leading to a severe shortage in crop productivity. Drought affects plant growth by causing hormonal and membrane stability perturbations, nutrient imbalance and physiological disorders. Furthermore, drought causes a remarkable decrease in leaf numbers, relative water content, sugar yield, root yield, chlorophyll a and b and ascorbic acid concentrations. However, the concentrations of total phenolic compounds, electrolyte leakage, lipid peroxidation, amounts of proline, and reactive oxygen species are considerably increased because of drought stress. This negative impact of drought can be eliminated by using plant growth-promoting bacteria (PGPB). Under drought conditions, application of PGPB can improve plant growth by adjusting hormonal balance, maintaining nutrient status and producing plant growth regulators. This role of PGPB positively affects physiological and biochemical characteristics, resulting in increased leaf numbers, sugar yield, relative water content, amounts of photosynthetic pigments and ascorbic acid. Conversely, lipid peroxidation, electrolyte leakage and amounts of proline, total phenolic compounds and reactive oxygen species are decreased under drought in the presence of PGPB. The current review gives an overview on the impact of drought on plants and the pivotal role of PGPB in mitigating the negative effects of drought by enhancing antioxidant defense systems and increasing plant growth and yield to improve sustainable agriculture.

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Section: Morphological and Anatomical Responsessupporting

confidence: 65%

Section: Oxidative Damage By Lipid Peroxidation (Mda Accumulation) and Electrolyte Leakage (El)mentioning

confidence: 99%

The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants

Abdelaal

AlKahtani

Attia

et al. 2021

Biology

160

100

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“…Drought is one of the most harmful stresses which, threat agricultural production, under drought factor, morphological characteristics such as leaves number, leaf area and stem length were decreased [ 16 , 17 , 18 ]. Electrolyte leakage (EL)%, lipid peroxidation (MDA) and reactive oxygen species (ROS) were dramatically increased as indicators under drought conditions [ 19 , 20 ]. ROS normally exist in the plant cells with very low concentrations, but under abnormal and stressful conditions, a high accumulation of ROS was observed [ 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Silicon and Proline Application on the Oxidative Machinery in Drought-Stressed Sugar Beet

et al. 2021

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Drought stress deleteriously affects growth, development and productivity in plants. So, we examined the silicon effect (2 mmol) and proline (10 mmol) individually or the combination (Si + proline) in alleviating the harmful effect of drought on total phenolic compounds, reactive oxygen species (ROS), chlorophyll concentration and antioxidant enzymes as well as yield parameters of drought-stressed sugar beet plants during 2018/2019 and 2019/2020 seasons. Our findings indicated that the root diameter and length (cm), root and shoot fresh weights (g plant−1) as well as root and sugar yield significantly decreased in sugar beet plants under drought. Relative water content (RWC), nitrogen (N), phosphorus (P) and potassium (K) contents and chlorophyll (Chl) concentration considerably reduced in stressed sugar beet plants that compared with control in both seasons. Nonetheless, lipid peroxidation (MDA), electrolyte leakage (EL), hydrogen peroxide (H2O2) and superoxide (O2●−) considerably elevated as signals of drought. Drought-stressed sugar beet plants showed an increase in proline accumulation, total phenolic compounds and up-regulation of antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD) activity to mitigate drought effects. Si and proline individually or the combination Si + proline considerably increased root and sugar yield, sucrose%, Chl concentration and RWC, MDA and EL were remarkably reduced. The treatments led to adjust proline and total phenolic compounds as well as CAT and SOD activity in stressed sugar beet plants. We concluded that application of Si + proline under drought stress led to improve the resistance of sugar beet by regulating of proline, antioxidant enzymes, phenolic compounds and improving RWC, Chl concentration and Nitrogen, Phosphorus and Potassium (NPK) contents as well as yield parameters.

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“…Pisum sativum L. is one of the most essential vegetable winter crops cultivated in Egypt, and most cultivars are grown for fresh and dry seeds because it contains a high amount of protein, vitamins, carbohydrates, and minerals like iron, phosphorus, and zinc [ 1 ]. Increasing the growth and yield of pea plants and other economic plants is considered an important target; there are many environmental factors that affect and harm the growth stages of many plants, such as salinity on strawberry, sweet pepper, rice, cucumber, and faba bean [ 2 , 3 , 4 , 5 , 6 , 7 ], and drought stress on faba bean, barley, sugar beet, maize and wheat plants [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Seed Priming Boost Adaptation in Pea Plants under Drought Stress

Arafa

Attia

Niedbała

et al. 2021

Plants

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In the present investigation, we study the effect of Bacillus thuringiensis MH161336 (106–8 CFU/cm3), silicon (25 mL L−1), and carrot extract (75 mL L−1) as seed primers, individually or in combination, on morphological, physio-biochemical and yield components of drought-stressed pea plants (Master B) during 2019/2020 and 2020/2021 seasons. Our results indicated that drought causes a remarkable reduction in plant height, leaf area, number of leaves per plant, and number of flowers per plant in stressed pea plants during two seasons. Likewise, number of pods, pod length, seeds weight of 10 dried plants, and dry weight of 100 seeds were decreased significantly in drought-stressed pea plants. Nevertheless, seed priming with the individual treatments or in combination boosted the morphological, physio-biochemical, and yield characters of pea plants. The best results were obtained with the Bacillus thuringiensis + carrot extract treatment, which led to a remarkable increase in the number of leaves per plant, leaf area, plant height, and number of flowers per plant in stressed pea plants in both seasons. Moreover, pod length, number of seeds per pod, seeds weight of 10 dried plants, and dry weight of 100 seeds were significantly increased as well. Bacillus thuringiensis + carrot extract treatment led to improved biochemical and physiological characters, such as relative water content, chlorophyll a, chlorophyll b, regulated the up-regulation of antioxidant enzymes, increased seed yield, and decreased lipid peroxidation and reactive oxygen species, mainly superoxide and hydrogen peroxide, in drought-stressed pea plants.

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Yield and quality of two sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima Döll) cultivars are influenced by foliar application of salicylic acid, irrigation timing, and planting density

Cited by 22 publications

References 25 publications

The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants

The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants

Evaluation of Silicon and Proline Application on the Oxidative Machinery in Drought-Stressed Sugar Beet

Seed Priming Boost Adaptation in Pea Plants under Drought Stress

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