Biomass Production and its Accumulation in Coleus forskohlii Briq.: Impact of Spacing and Time of Harvest

Authors

  • Anand Basavanni Mastiholi University of Horticultural Sciences, Bagalkot, Karnataka, India
  • Mukesh Loknaath Chavan University of Horticultural Sciences, Bagalkot, Karnataka, India
  • Prabhuling Gurappa - University of Horticultural Sciences, Bagalkot, Karnataka, India

Keywords:

Medicinal coleus, spacing, time of harvest, top, tuber, biomass, LAI, LAD

Abstract

A field experiment was carried out at Kittur Rani Channamma College of Horticulture, Arabhavi, Karnataka,  for two years to study the influence of spacing and time of harvest on biomass production and its  accumulation in Coleus forskohlii. Pooled analysis of yield data indicated that significantly higher total  biomass (TBP) was produced when planted at a spacing of 60 cm x 20 cm (10.08 t ha-1) followed by  75 cm x 20 cm (9.92 t ha-1). There was increase in tuber biomass production with decrease in plant to  plant spacing (1.04 t ha-1 at 60 cm x 30 cm and 1.57 t ha-1 at 60 cm x 20 cm). Shoot biomass  accumulation was higher at 75 cm x 20 cm and 60 cm x 20 cm. Increase in biomass accumulation in  tubers was not significant beyond 160 days after planting (DAP) (1.39 and 1.45 t ha-1 at 160 and 180  DAP, respectively). The total biomass production and its accumulation in the above ground portion andtubers were significantly higher in the treatment combinations, 60 cm x 20 cm at 180 DAP (11.15,  9.38 and 1.77 t ha-1, respectively) and also at 160 DAP (9.45, 7.72 and 1.73 t ha-1, respectively).  Harvest index (HI) was found higher at closer spacing of 60 cm x 20 cm (0.121) and at 160 DAP  (0.135). Interaction effects of spacing and time of harvest indicated that coleus cultivar K-8 may beplanted at a spacing of 60 cm x 20 cm and harvested at 160 DAP to get higher tuber yield and harvest  index.

Author Biographies

Anand Basavanni Mastiholi, University of Horticultural Sciences, Bagalkot, Karnataka, India

Associate ProfessorDepartment of Agronomy

Mukesh Loknaath Chavan, University of Horticultural Sciences, Bagalkot, Karnataka, India

Associate ProfessorDepartment of Crop Physiology

Prabhuling Gurappa -, University of Horticultural Sciences, Bagalkot, Karnataka, India

Assistant ProfessorDepartment of Crop Improvemt Biotechnology

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Published

2015-01-01

How to Cite

Mastiholi, A. B., Chavan, M. L., & -, P. G. (2015). Biomass Production and its Accumulation in Coleus forskohlii Briq.: Impact of Spacing and Time of Harvest. JOURNAL OF ROOT CROPS, 39(2), 131–135. Retrieved from https://journal.isrc.in/index.php/jrc/article/view/69

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