Effect of shade levels on production and quality of cordyline (Cordyline terminalis)

ABHAY KUMAR GAURAV; D V S RAJU; T JANAKIRAM; BHUPINDER SINGH; RITU JAIN; S GOPALA KRISHNAN

doi:10.56093/ijas.v85i7.50125

Authors

ABHAY KUMAR GAURAV Ph D Scholar, ICAR-Indian Agricultural Research Institute, New Delhi 110 012
D V S RAJU Senior Scientist, Division of Floriculture and Landscaping, ICAR-IARI, New Delhi
T JANAKIRAM ADG, Horti, KAB-II, New Delhi 110 012
BHUPINDER SINGH Principal Scientist, NRL, ICAR-Indian Agricultural Research Institute, New Delhi 110 012
RITU JAIN Scientist, Division of Floriculture and Landscaping, ICAR-Indian Agricultural Research Institute, New Delhi 110 012
S GOPALA KRISHNAN Senior Scientist, Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110 012

https://doi.org/10.56093/ijas.v85i7.50125

Keywords:

Cordyline PAR, Photosynthetic activity, Shade net, Specific leaf area (SLA), Leaf area, Transmittance

Abstract

An investigation was carried out during 2013-14 to study the effect of different shade levels on the production and quality of cordyline (Cordyline terminalis Kunth.) under the subtropical condition of New Delhi, India. The effect of spectral control of light on physiology and vegetative development was evaluated at different crop growth stages. Shade nets did not only protect plants from high light intensities but also improved the vegetative growth, yield, vase life and quality of cordyline cut greens irrespective of shade level. Different shade levels modified microclimates, PAR, transmittance and canopy temperature. The shading improved plant characters like height, number of leaves, chlorophyll content, leaf area, fresh weight, harvest index and vase life. The plants grown under different shade levels showed improved photosynthetic activity and reduced transpiration rate. Plants grown under 50% shade level were taller, along with more number of leaves having longer petiole, chlorophyll content which can be attributed to higher photosynthetic rate, whereas harvest index and vase life was optimum. Overall, shade net with 50% shading was found best for commercial production of cordyline cut greens.

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