Assessment of growth, flowering and seed yield in calendula (Calendula officinalis L.) as influenced by gold-nanoparticle

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Date
2016-06
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The present investigation was carried out at Model Floriculture Centre of Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, (Uttarakhand) during September 2015 to March 2016 to assess the effect of Gold nanoparticle treatment on growth, flowering and seed yield of Calendula. Experiment consisted of four treatments (5, 10, 15, 20 ppm Gold-nanoparticle), along with control and was laid out in Randomized block design with four replications. Foliar application of Gold-nanoparticle suspension was done 28 days after transplanting of seedling to the experimental field. Among the various treatments, application of 10 ppm of Gold-nanoparticle was found best for most of the parameters viz., plant height (73.95 cm), plant spread (54.62), number of leaves (127.55), flower diameter(7.06 cm), fresh flower weight (4.31 g), days to flower bud initiation(30.85 days), duration to flowering(105.15 days), total number of flowers(131.30), seed weight(35.73 g), estimated flower yield (28 tons/ha). Thus, it can be concluded that 10 ppm gold nanoparticle application in calendula has a positive effect on growth, flowering and seed yield.
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