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Effect of agro-techniques on the performance of natural sweetener plant–stevia (Stevia rebaudiana) under western Himalayan conditions

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Title Effect of agro-techniques on the performance of natural sweetener plant–stevia
(Stevia rebaudiana) under western Himalayan conditions
 
Creator Kumar , R
Sharma , Saurabh
Kulasekhran , Ramesh
Prasad , Ramdeen
Pathania , Vijaylata
Singh , Bikram
Singh, R D
 
Subject Plant sciences
Natural Product Chemistry
 
Description Two separate field experiments were conducted during 2007, 2008 and 2009 to evaluate the effect of agrotechniques
on the performance of natural sweetener plant–stevia (Stevia rebaudiana Bertoni) under western Himalayan
conditions. In the first experiment during 2007 and 2008 two doses of farm yard manure (FYM) and
seven inorganic fertilizers were compared with untreated plot (control). Application of 50:60:50 kg NPK/ha recorded
significantly higher plant height, stem, flower and total weight/plant (dry) and consequently recorded higher
dry leaf yield as compared to other treatments. However, stevioside and rebaudioside contents were found to reduce
due to the application of manures/fertilizers. FYM application recorded higher marker compounds than inorganic
fertilizers. Owing to higher dry leaf yield, 50:60:50 kg NPK/ha recorded highest steviol glycoside (stevioside
and rebaudioside A) yield/ha than other treatments. In second experiment during 2008 and 2009, effect of land
configuration and harvesting time on growth, yield and steviol glycosides of stevia was evaluated. Planting stevia
in broad bed and furrow (BBF) recorded 31 and 23% higher leaf biomass over flat and camber bed methods, respectively.
Steviol glycosides (stevioside and rebaudioside-A) concentration was higher when stevia was planted
in camber bed as compared to flat and BBF. Significantly higher leaf biomass was obtained from stevia plants
which were harvested once at 50% flower bud stage compared with those harvested once at the 60 and 90 days
after transplanting (DAT). Rebaudioside -A content was higher when leaves were harvested at 50% flower bud
stage. Owing to higher dry leaf yield, stevia planted in BBF and harvested at 50% flower bud stage recorded highest
net return and B:C ratio than other treatments.
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://ihbt.csircentral.net/1213/1/16_Effect_of_agro.pdf
Kumar , R and Sharma , Saurabh and Kulasekhran , Ramesh and Prasad , Ramdeen and Pathania , Vijaylata and Singh , Bikram and Singh, R D (2012) Effect of agro-techniques on the performance of natural sweetener plant–stevia (Stevia rebaudiana) under western Himalayan conditions. Indian Journal of Medicinal and Aromatic Plants, 57 (1). pp. 74-81.
 
Relation http://ihbt.csircentral.net/1213/