Discrete Roles for Extracts of Ascophyllum Nodosum in Enhancing Plant Growth and Tolerance to Abiotic and Biotic Stresses

Guinan, Kieran J.; Sujeeth, Neerakkal; Copeland, R. B.; Jones, Philip W.; O’Brien, Nora M.; Sharma, H. S. S.; Prouteau, P.F.J.; O'Sullivan, James

doi:10.17660/actahortic.2013.1009.15

Cited by 48 publications

(42 citation statements)

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“…Guinan and others [27] reported that biostimulants improve stress tolerance due to a greater production of antioxidants. The results from this current study concurred with Guinan and others [27] and showed that Stimplex treated tomatoes contained higher lycopene (antioxidant) content than that in the controlled group. Significant difference was detected in two cultivars, German Johnson and Roma, respectively ( < 0.05).…”

Section: Total Lycopene and -Carotene Contentmentioning

confidence: 99%

A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities

Sidhu

Nandwani

Wang

et al. 2017

Journal of Food Quality

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The objective of the present study is to investigate nutritional and antioxidant activity of four types of organic tomato cultivars. The differences in tomato quality are also tested between groups with or without treatment using an organic biostimulator, Stimplex. Total phenolic compounds (TPC), lycopene, -carotene, DPPH free radical scavenging activity, reducing power, and color parameters were investigated in the current study. The results showed that there was no significant difference in TPC among cultivars regardless of Stimplex treatment. Higher lycopene and -carotene were obtained in Stimplex treated tomatoes. Lycopene and -carotene contents were significantly different among cultivars ( < 0.05). DPPH scavenging activity in controlled group was significantly higher than that in the Stimplex treated tomatoes ( < 0.05). No significant difference in reducing power was detected among cultivars treatment groups. The study showed that the darker the tomato color, the higher the lycopene and -carotene contents and the stronger the reducing power.

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Section: Total Lycopene and -Carotene Contentmentioning

confidence: 99%

A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities

Sidhu

Nandwani

Wang

et al. 2017

Journal of Food Quality

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“…Tomato plant growth improvement is related to the increased leaf chlorophyll content, yield, sugar content and resistance against leaf‐ and soil‐borne pathogens . However, the effectiveness of A. nodosum extracts depends on the type of extract involved, their specific biochemical composition and the underlying stress affecting the plant …”

Section: Introductionmentioning

confidence: 99%

“…15 However, the effectiveness of A. nodosum extracts depends on the type of extract involved, their specific biochemical composition and the underlying stress affecting the plant. 16 Potassium (K) is an essential mineral involved in plant metabolism, in promoting the synthesis of carbohydrates, fats and proteins, in increasing crop yield and in improving quality when used appropriately. 17 Potassium fertilization may have both positive and negative influences on plant yield, leaf area and secondary metabolites.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ascophyllum nodosum seaweed extracts on lettuce growth, physiology and fresh‐cut salad storage under potassium deficiency

et al. 2018

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“…Moreover, the isolation and study of a single component present in a biostimulant can produce unreliable results because the effects on plants are often due to the combination and synergistic action of different compounds. The mechanisms activated by biostimulants are difficult to identify and still under investigation (Ertani et al 2011Guinan et al 2013). Therefore, the biostimulants should be classified on the basis of their action in the plants or, even better, on the physiological plant responses rather than on their composition.…”

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confidence: 99%

Biostimulants and crop responses: a review

Bulgari

Cocetta

Trivellini

et al. 2014

Biological Agriculture & Horticulture

414

255

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Agricultural growing practices have been evolving towards organic, sustainable or environmental friendly systems. The aim of modern agriculture is to reduce inputs without reducing the yield and quality. These goals can be achieved by breeding programmes but would be species specific and time consuming. The identification of organic molecules able to activate plant metabolism may allow an improvement in plant performance in a short period of time and in a cheaper way. Biostimulants are plant extracts and contain a wide range of bioactive compounds that are mostly still unknown. These products are usually able to improve the nutrient use efficiency of the plant and enhance tolerance to biotic and abiotic stresses. In this review, the state of the art and future prospects for biostimulants are reported and discussed. Moreover, particular attention has been paid to intensive agricultural systems such as horticultural and floricultural crops. In vegetables, the application of biostimulants allowed a reduction in fertilizers without affecting yield and quality. In leafy vegetables susceptible to nitrate accumulation, such as rocket, biostimulants have been able to improve the quality and keep the nitrates under the limits imposed by EU regulations. Moreover in leafy vegetables, biostimulants increased leaf pigments (chlorophyll and carotenoids) and plant growth by stimulating root growth and enhancing the antioxidant potential of plants. In floriculture, biostimulants used in bedding plant production stimulated the growth of plants, which reached the blooming and commercial stages earlier, thus optimizing space in the greenhouse.

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Discrete Roles for Extracts of Ascophyllum Nodosum in Enhancing Plant Growth and Tolerance to Abiotic and Biotic Stresses

Cited by 48 publications

References 0 publications

A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities

A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities

Effects of Ascophyllum nodosum seaweed extracts on lettuce growth, physiology and fresh‐cut salad storage under potassium deficiency

Biostimulants and crop responses: a review

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