Author(s):

Jyoti Singh, SK Pandey, Vishal Nath and Evening Stone Marboh

Abstract: A field experiment was conducted to assess the effect of different spacing and planting system on growth and physiological parameters of Litchi cv. Shahi for two consecutive years (2018-19) at ICAR- NRC on Litchi, Muzaffarpur (Bihar). The experiment was laid out in Randomized Block Design (RBD) with six different planting spacing namely 4x3 m with supporting, 4 x 3 m without supporting, 5 x 3 m, 6 x 4 m, and 8 x 4 m. The planting spacing at 8 x 8 m was used as control. Each treatment contains four replications. The growth characters in terms of height of plant (m), girth diameter (cm), spread of plant EW-NS (m), canopy diameter (m), canopy area (m), leaf area (cm), total cross sectional area (cm²), extend of flushes and physiological parameters in terms of total chlorophyll content, stomatal conductance, transpiration rate and PAR were recorded during the present investigation. Maximum plant height (5.54 m), girth diameter (74.67 cm), plant spread EW (5.82 m), NS (6.91 m), canopy diameter (6.23 cm), canopy area (62.25m²), TCSA (398.21 cm²), flush length (44 cm), flush diameter (7.60 mm), total chlorophyll content (mg/g) and gas exchanges viz stomatal conductance (62.25 mol.m-2 s-1), transpiration rate (2.48 m.mol m-2 s- 1), PAR (1583.25 µ mol m-2 s-1) was observed in wider spacing plants at a spacing of 8 x 8 m.

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