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Assessing suitability of Andrographis paniculata genotypes for rain-fed conditions in semi-arid climates

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Title Assessing suitability of Andrographis paniculata genotypes for rain-fed conditions in semi-arid climates
 
Creator Kuldeep singh Atmaram Kalariya
Narendra A. Gajbhiye
Ram Prasnna Meena
Parmeshwar L. Saran
Dipal Minipara
Sinora Macwan
K.A. Geetha
 
Subject Andrographis paniculata
Andrographolide content
Andrographolide yield
Photosynthesis
Rainfed condition
Transpiration
 
Description Medicinal plants are generally suggested for degraded land or areas having low rain-fall.
Andrographis paniculata is an important medicinal plant known for its diterpene lactone
i.e. andrographolide. We exposed 26 genotypes of A. paniculata to rain-fed condition during
early-season rain-fed (ESRF) and mid-season rain-fed (MSRF) conditions and compared
with the control to assess their suitability in semi-arid climate region of Gujarat, India.
The study was performed during two consecutive years 2016–2017 in split plot design with
rain-fed conditions as main-plot treatment and genotypes as sub-plot treatment in three
replications. The gaseous exchange parameters taken at 85–100 days after transplanting
exhibited mean photosynthesis rate was 20.5 l mol CO2 m 2 s 1 ranging between 15.9 lmol
CO2 m 2 s 1 and 24.0 l mol CO2 m 2 s 1. Exceeding 7% decrease in stomatal conductance
was recorded compared to the control plants under imposed rain-fed condition. The mean
value of transpiration rate was 4.8 mmol H2O m 2 s 1. The mean value of water use efficiency
was 4.6. MSRF condition decreased leaf water potential from 0.517 to 1.189
Mpa. The dry herbage decreased by 29.2% due to MSRF condition as compared the control.
The andrographolide yield per plant suffered significantly and under ESRF condition it
reduced mainly due to reduction in andrographolide content. Reduced andrographolide
yield per plant in MSRF condition was mainly due to reduction in herbage yield. Results
revealed that ESRF and MSRF condition characterized by erratic rainfall pattern and dry
spell is not beneficial for quality production in A. paniculata. Based on the least decrease
in andrographolide, yield two genotypes viz., AP 6 and AP 12 identified to be suitable for
ESRF condition and two genotypes viz., AP 19 and AP 6 suitable for MSRF condition. Overall,
four genotypes, AP 35, AP 39, AP 61 and AP 24 were suitable as the promising genotypes
having high andrographolide yield.
 
Date 2021-02-04T11:09:19Z
2021-02-04T11:09:19Z
2020-09-29
 
Type Research Paper
 
Identifier http://krishi.icar.gov.in/jspui/handle/123456789/45251
 
Language English
 
Publisher ELSVIER