The effect of foliar application of brassinosteroid and carrageenan biostimulants on the quantitative and qualitative traits of the medicinal plant Physalis) Physalis alkekengi L.)

S, Shabrangi (2024) The effect of foliar application of brassinosteroid and carrageenan biostimulants on the quantitative and qualitative traits of the medicinal plant Physalis) Physalis alkekengi L.). Masters thesis, University of Zabol.

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The effect of foliar application of brassinosteroid and carrageenan biostimulants on the quantitative and qualitative traits of the medicinal plant Physalis) Physalis alkekengi L.).pdf

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Abstract

In order to reduce injuries and damages resulting from abiotic stresses in plants and the negative effects it has on human nutritional health; The correct and proper use of all kinds of stimulants may be a good solution to deal with these injuries. In order to investigate the effect of foliar spraying of biological stimulants on the quantitative and qualitative characteristics of experimental physalis in the form of factorial design on a completely random basis with 16 treatments in three replications, a total of 48 experimental units during the crop year 2013-2014 in the research greenhouse of the Agricultural Research Institute of Zabol. The treatments of this experiment include foliar spraying with Brassinosteroid (at four levels of 0, 150, 300, and 600 mg/ml) and carrageenan (at four levels of 0, 200, 400, and 600 mg/ml). In the growth stages of 2, 4 and 6 leaves, foliar spraying was done on the surface of the plants. The morphological traates measured in this experiment are: length, width, and surface of leaf, diameter and height of stem, total number of leaves, number of fruits per plant, single fruit weight and fruit yield per plant. Also, the phytochemical parameters measured in this research are: the amount total chlorophyll, fruit carotenoid content, total phenol, total flavonoid, and antioxidant activity. The data obtained from this research were analyzed using SAS statistical software and the samples were drawn using Excel software. The results of this experiment showed that the highest plant height (123.11 cm), the largest leaf area (25.74 cm2), the highest antioxidant power (98.6 percent), the highest vitamin C content (97.2 mg of Ascorbic acid/100 ml of fruit juice) was observed in B600K400 treatment. Also, the highest fruit diameter (19.1 mm), the highest fruit fresh weight (1.9 g), the highest fruit carotenoid content (4.65 mg/g F.W.) and flavonoid (3 mg Q/g D.W.) were measured in the elicitation with B600K600. The highest fruit yield (5.9 T/ha) was measured in B300K400 treatment. The highest content of photosynthetic pigments (20.43 mg/g F.W.) was measured in the B300K600 treatment and the highest content of phenolic compounds (80.6 mg GA/g D.W.) in the treatment with carrageenan at a concentration of 400 ppm. In general, the results of the present experiment showed that the stimulation of Physalis plants with Brassinosteroid and Carrageenan biostimulants led to an increase in its quantitative and qualitative characteristics

Item Type: Thesis (Masters)
Uncontrolled Keywords: Physalis, growth promoter, phytochemical, total phenol
Subjects: Q Science > QK Botany
Depositing User: Mrs najmeh khajeh
Date Deposited: 30 Apr 2025 08:17
Last Modified: 30 Apr 2025 08:17
URI: http://eprints.uoz.ac.ir/id/eprint/3802

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