Record ID No. |
774 |
Author(s) |
Santosh, Dharana., Laxminarayan,Hegde., Rokhade,A.K., Patil,C.P., Kulkarni,M.S , 2006 |
Affiliation |
Kittur Rani Chennamma College of Horticulture, University of Agricultural Sciences, Arabavi - 591 310, Belgaum District, Karnataka, India. |
Title |
Effect of bio-inoculant organisms on growth and yield of Coleus forskohlii Briq. - an endangered medicinal plant. |
Source. Vol.(no):Page |
Mycorrhiza-News, 18 (2): 15-17p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Manuring |
Host |
Coleus forskohlii |
Organism |
Glomus fasciculatum, G. monosporum, G. mosseae, Sclerocystis dussii and Gigaspora margarita, Azotobacter chroococcum, Azospirillum brasilense, Pseudomonas striata and Trichoderma harzianum |
Country |
India, South Asia |
Abstracts |
This study was conducted during 2003/04 at the Department of Medicinal and Aromatic Plants, Kittur Rani Channamma College of Horticulture, Arabavi, Karnataka, India, to determine the influence of microbial inoculants (6 arbuscular mycorrhizal (AM) fungi and consortia-I) on the growth and yield of the endangered medicinal plant Coleus forskohlii. The AM fungi include: Glomus intraradices, Glomus fasciculatum, Glomus monosporum, Glomus mosseae, Sclerocystis dussii and Gigaspora margarita, while consortia-I consisted of Azotobacter chroococcum, Azospirillum brasilense, Pseudomonas striata and Trichoderma harzianum. The plants inoculated with the different bio-inoculants showed more vigorous growth than the uninoculated control plants. Among the different treatments, the establishment of cuttings was better in the consortia-I treated plants (93.33%) and minimum in the control (80%). The consortia-I treated plants also showed better rooting. Plants inoculated with Gigaspora margarita showed maximum plant height (61.23 cm) and leaf length (6.24 cm). The plants inoculated with consortia-I recorded maximum tuber length (13.52 cm), and number of tubers (16.8). The fresh weight of tubers per plant and dry weight of tubers per plant were found to be higher in plants inoculated with Gigaspora margarita and consortia-I, which also had a good influence on tuber diameter and tuber length, compared with the uninoculated ones. Forskolin content and yield was maximum in consortia-I (0.403% and 26.07 mg/plant, respectively). Results confirmed the role of the microbial consortia-I and AM fungi in the improvement of both tuber yield and forskolin content in Coleus forskohlii. |