Effect of dikegulac on growth and alkaloid production inCatharanthus roseus (L.) G. Don. (pink flowered) |
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Authors: | S Choudhury K Gupta |
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Institution: | (1) Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Burdwan, 713104 Burdwan, West Bengal, India |
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Abstract: | Application of sodium-dikegulac reduced plant height with associated increase in branch and leaf number and root biomass inC. roseus (L.) G. DON. Chlorophyll content reduced significantly after first month of 100 and 250 μg/ml DK application. However, such
reduction was replaced by significant rise after forth month in 250 μg/ml DK application and fifth month in 100 μg/ml DK application
followed by appreciable decline only in 250 μg/ml DK treatment but 100 μg/ml DK maintained higher level till harvest. Total
sugar content was significantly high during forth and fifth month stage of growth after DK application. Amino acid content
was higher during third to fifth month in 100 μg/ml DK treatment and during third to forth month in 250 μg/ml DK treatment.
Tryptophan, on the other hand showed higher content at the fifth month stage of growth after application of DK in both the
concentrations. Leaf and root dry weight as well as total alkaloid content were highest in 100 μg/ml DK application. DK, therefore,
appears to be a potential chemical for increasing biomass and alkaloid content inC. roseus. |
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Keywords: | Catharanthus roseus plant growth dikegulac alkaloid |
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