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. 2021 Jan 4;7(1):e05881.
doi: 10.1016/j.heliyon.2020.e05881. eCollection 2021 Jan.

Field demonstration of irradiated sodium alginate as tea production booster

Mohammad Afzal Hossain  1   2 , Jahid M M Islam  2   3 , Md Mozammel Hoque  1 , Shamsun Nahar  4 , Mubarak A Khan  2
Affiliations

Field demonstration of irradiated sodium alginate as tea production booster

Mohammad Afzal Hossain et al. Heliyon. .

Abstract

Sodium alginate oligomers were tested for tea plant growth promoter and anti-fungal agent in this experiment. Sodium alginate solutions were irradiated by Co-60 gamma radiation with different radiation doses to produce the oligomers. Irradiated solutions were then diluted into 150, 300 and 500 ppm prior to foliar application. Solutions were applied through foliar spraying at 7 days interval and the best response of tea plants in terms of various attributes were recorded. Tea buds were collected in 10 days of interval and the growth attributes like- total number of buds, fresh weight of buds, average leaf area and weight per bud, weight of made tea etc. were calculated. The experiment was continued up to 12 weeks and the attributes were averaged to get results per plucking. 12 kGy radiation doses along with 300ppm solution showed the best results and about 36% increase in productivity was found based on the fresh weight of buds. Total fungal count in tea leaves was also found to be reduced greatly. Based on the present study, irradiated sodium alginate could be used as safe and environmentally friendly agent to increase tea production.

Keywords: Gamma radiation; Growth promoting activity; Natural growth promoter; Sodium alginate; Tea production.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Effects of irradiated sodium alginate solution on tea plants; A. 300 ppm un-treated alginate solution applied and B. 300 ppm 12 kGy gamma radiation treated alginate solution applied.
Figure 2
Figure 2
Effects of irradiated sodium alginate solution on number of buds of tea plants. ∗Means ± Standard Error of Means those do not share a letter are significantly different (P < 0.05) according to Tukey Method.
Figure 3
Figure 3
Correlation between weights of fresh leaves and made tea.
Figure 4
Figure 4
Effects of gamma radiation treated sodium alginate solutions on average weight per bud. ∗Means ± Standard error of means those do not share a letter are significantly different (P < 0.05) according to Tukey Method.
Figure 5
Figure 5
Effects of irradiated sodium alginate solutions on average leaf area. ∗Means ± Standard Deviation; those do not share a letter are significantly different (P < 0.05) according to Tukey Method.
Figure 6
Figure 6
Anti-fungal activity of radiation processed sodium alginate solutions on tea plants.
See this image and copyright information in PMC

References

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