Effect of soil less culture on growth, yield and forskolin content of coleus - Plectranthus barbatus Andr
KrishiKosh
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Title |
Effect of soil less culture on growth, yield and forskolin content of coleus - Plectranthus barbatus Andr
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Creator |
Sharma, Yashaswini
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Contributor |
M, Vasundhara
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Subject |
planting, vegetative propagation, nutrients, solutes, yields, drying, fungi, biological development, harvesting, concentrates
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Description |
The present investigation "effect of soil less culture on growth, yield and forskolin content of coleus" was carried out at Sugandhavana, Medicinal and Aromatic Section, Department of Horticulture, University of Agricultural Sciences, GKVK, Bangalore (Zone- 5), during the year 2010-12. Among the media and nutrients, the plants grown in cocopeat with 150 per cent of Recommended Dose of Fertilizers (RDF) responded with high vegetative growth such as plant height, number of leaves, plant spread, fresh and dry weight of shoot. Among the different root parameters, root diameter, fresh and dry weight of roots and dry matter accumulation was significantly higher in cocopeat media with 80 per cent RDF. Significantly higher yield parameters, fresh and dry weight of roots (410 and 114 g plant-1, respectively), yield per m2 and per hectare (1.71 kg m-2 and 17.10 t ha-1, respectively) were recorded in M2F3 (cocopeat with 80 % RDF). Forskolin content (1.00 %) and benefit cost ratio (4.25) was also found to be maximum in M2F3. Further screening of coleus varieties/ mutants under cocopeat media and 80 per cent of RDF resulted in maximum growth parameter values in the mutant, MV2 compared to other varieties while significantly higher root length and diameter was noticed in MV4 (41.83 and 2.52 cm, respectively). Maximum root to shoot dry weight ratio (3.12), dry matter (148.14 g plant-1), fresh (356.63 g) and dry weight of roots per plant (112.14 g) was observed in MV4. The dry tuber yield was also found to be maximum (1.68 kg m-2 and 16.82 t ha-1) in MV4 compared to check variety K-8 (1.00 kg m-2 and 9.99 t ha-1). The forskolin content in tuberous roots of various coleus varieties was maximum (1.04 %) in MV4 followed by MV7 (0.92 %). The study highlights the effect of cocopeat with 80 per cent RDF to be the best fir commercial cultivation of coleus mutants (MV4 and MV7). |
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Date |
2016-05-17T15:17:05Z
2016-05-17T15:17:05Z 2012-08-13 |
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Type |
Thesis
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Identifier |
Th-10313
http://krishikosh.egranth.ac.in/handle/1/66037 |
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Language |
en
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Format |
application/pdf
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Publisher |
University of Agricultural Sciences, Bengaluru
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