Record Details

Gaseous exchange, biochemical parameters and yield as affected by application techniques and doses of Paclobutrazol in litchi tree

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Gaseous exchange, biochemical parameters and yield as affected by application techniques and doses of Paclobutrazol in litchi tree
 
Creator Sanjay Kumar Singh
Ankit Kumar Pandey
Prabhakar Singh
 
Subject Litchi chinensis, nitrogen, photosynthesis, ring basin.
 
Description An experiment was conducted to see the effect of leaf gaseous exchange parameter, biochemical status and fruit quality of litchi cultivars China and Shahi during 2016–17 in subtropical climate of northern Bihar. Two methods of paclobutrazol (PBZ) application i.e. ring basin (RB) and trunk soil line pore (TSLP) were used with various doses of paclobutrazol (1.00–4.00 g per m canopy diameter) during September month. There was non-significant effect recorded for net photosynthetic rate during August and October but it diminishes during flowering stage (3.3 to 4.2) over control (4.96). The highest rate of transpiration was recorded during flowering phase in trees treated with 3.0 g PBZ whereas 2–3 times more stomatal conductance was recorded in PBZ applied trees @ 1 or 2.0 g through TSLP over control. During pre-FBD (i.e. October-November), leaf chlorophyll content was improved due to RB method over control. PBZ also reduced leaf Nitrogen content during October, which was conducive for flower bud differentiation in litchi trees. 4.0 g PBZ applied through TSLP method assured highest yield (2567.66 number of fruits per tree), while in control it was only 32–140. The total sugar, vitamin ‘C’ in pulp was also recorded highest in tree treated with 4.0 g PBZ with any method of PBZ application. However same dose of PBZ with TSLP method resulted in higher Vitamin ‘C’ and total anthocyanin (28.51 mg per 100 g peel) content. Although, paclobutrazol had only small effect on gas exchange parameters but it significantly improved chlorophyll content, reduced leaf N content (just prior to FBD) and improved yield (by 10–15 fold), pulp vitamin C and anthocyaninin content.
ICAR, New Delhi
 
Date 2022-03-29T09:43:26Z
2022-03-29T09:43:26Z
2019-06-30
 
Type Research Paper
 
Identifier Singh, Sanjay Kumar, Pandey, Ankit K., and Singh, Prabhakar (2019). Gaseous exchange, biochemical parameters and yield as affected by application techniques and doses of Paclobutrazol in litchi tree. Indian J. Hort. 76(2): 265-272
0972-8538
http://krishi.icar.gov.in/jspui/handle/123456789/70860
 
Language English
 
Publisher Indian Academy of Horticultural Sciences, New Delhi