Water soluble Chitosan extraction from mycelium of Alternaria solani and its field evaluation on Tomato plants

Sathiyabama, Muthukrishnan; Akila, G.

doi:10.1016/j.carpta.2021.100101

Cited by 4 publications

(2 citation statements)

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“…Little is known about the efficiency of chitosan as a source of fertilization and protection for physalis plants. We chose to evaluate the effects of different doses of chitosan on physalis plants in two experimental conditions (field and greenhouse) because chitosan is a natural biofertilizer, environmentally sustainable, and has a high potential for use in plants (Sathiyabama and Akila, 2021).…”

Section: Resultsmentioning

confidence: 99%

“…Chitosan properties allow numerous applications in various commercial products, due to its biocompatibility, biodegradability, and amine reactivity (Fai et al, 2011;Synowiecki and Al-Khatteb, 2003). Among other applications, chitosan has been used as a bioprotectant that improves plant and fruit development (Sathiyabama et al, 2016;Trouvelot et al, 2014;Amerany et al, 2020;Sathiyabama and Akila, 2021). Chitosan induces defense mechanisms such as increased production of phytoalexins, which are only produced on a large scale when the plant is subjected to a pathogen attack.…”

Section: Introductionmentioning

confidence: 99%

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Application of chitosan on physalis

Claus

Sato

Lorenzetti

et al. 2022

RSD

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Cultivation of small fruits such as blackberry, raspberry, blueberry, strawberry, and physalis is rapidly growing in Brazil, mainly due to small producers who seek income diversification. The aim of this study was to evaluate the effect of foliar application of different doses of chitosan on the physicochemical properties of Physalis peruviana L. Two experiments were conducted: i) field (FE); and ii) greenhouse (GE). Four doses of chitosan (0.1, 0.2, 0.3, and 0.4 L 100L-1) and a control were used as treatments. We evaluated fruit diameter (FD), fruit length (FL), calyx length (CL), and calyx diameter (CD) - mm; fruit mass - g; soluble solids content (SS) - °Brix; titratable acidity (TA) - % of citric acid; SS/TA ratio; and fruit firmness - N. Foliar application of chitosan to field-grown physalis plants significantly increased fruit mass, length, and diameter, as well as fruit SS and TA content. However, in a protected environment, the application of chitosan had less effect on the properties evaluated. Fruit firmness was not affected by chitosan application. Negative correlations (P<0.001) between fruit mass and firmness (r=-0.57) and SS/TA ratio (r=-0.61) were observed. SS/TA ratio was also negatively correlated with TA (r=-0.82), FL(r=-0.61), and FD (r=-0.68). High and significant correlations were observed between fruit mass and TA, FL, and FD. Foliar application of chitosan has a positive effect on both agronomic and chemical properties and can be an excellent alternative natural fertilizer for physalis plants when applied in doses up to 0.2 L 100 L-1.

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Section: Resultsmentioning

confidence: 99%