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Author: search.filters.author.Chumthong, B.Subject: search.filters.subject.Growth

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    Influence of ethephon spraying on the growth and yield of Stevia (Stevia rebaudiana Bertoni.)
    (2023-05-01)
    Chumthong, B.
    ;
    Seesanong, S.
    ;
    Detpiratmongkol, S.
    The effects of ethephon spraying on the growth and yield of stevia (Stevia rebaudiana Bertoni) was investigated. The results indicated that spraying ethephon for three times leaded to the highest growth parameters in term of stem, leaf, root and total dried weight and yield, followed by spraying two and one times. The ethephon spraying to stevia at concentration of 200 ppm gave the highest total dried weight and yield. It is concluded that application of ethephon at concentration of 200 ppm to stevia for three times at 30, 60 and 90 DAT gave the highest vegetative growth and yield.
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    Response of biomass and yield of Stevia (Stevia rebaudiana Bertoni.) to flower removal
    (2018-12-01)
    Chumthong, B.
    ;
    Detpiratmongkol, S.
    It has never been reported on the effect of flower removal on the yield of Stevia plant. The effect of flower removal on growth and yield of Stevia was studied. Reesults revealed that flower removal produced significantly (P=0.05) greater number of leaves, dry biomass yield and leaf dry weight yield compared to the control. Four times of flower removal plant gave the highest number of leaves (1,318.50 plant <sup>-1</sup> ), total biomass dry weight (11.31 g plant <sup>1-</sup> ) and leaf dry weight yield (0.81 t ha <sup>-1</sup> ) compared to the control. Therefore, flower removal during the production of Stevia plant should be practiced in order to increase growth and leaf yield.
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