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STUDIES ON THE PROPAGATION AND HARVESTING OF Stevia rebaudiana BERTONI

KrishiKosh

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Title STUDIES ON THE PROPAGATION AND HARVESTING OF Stevia rebaudiana BERTONI
 
Creator MASTANA, PRATEEK
 
Contributor SHARMA, YASH PAL
 
Subject clay, genetic soil types, land resources, area, sugarcane, layering, humus, soil sciences, drying, environmental degradation
Stevia rebaudiana Bertoni,propagation ,harvesting
 
Description : 321
ABSTRACT
The present investigation entitled, “Studies on the propagation and harvesting of
Stevia rebaudiana Bertoni” was carried out in laboratory and experimental area, located at
Nauni of the Department of Forest Products, during 2009-2011. The investigation was based
on 5 experiments: (1) Effect of biofertilizers on seedling performance/vigour (2) Effect of
growth regulators on rooting and growth of rooted cuttings (3) Effect of different
rooting media on rooting and growth of rooted cuttings (4) Effect of pruning height on
yield parameters (5) Effect of storage temperature, storage containers and storage
duration on seed viability. The application of biofertilizers in growing media proved
beneficial for seedling growth. Combined application of PSB and Azotobacter resulted in
maximum seedling vigour followed by application of Azotobacter alone, PSB+VAM and
PSB + VAM + Azotobacter. Among the different growth regulator formulations tried, IBA at
a concentration of 25 x 10-4 M formulation resulted in better induction of rooting by over
77.50 per cent as against 25.00 per cent in the control. Using NAA, 30 x 10-4 M formulation
was also found effective in promoting more number of roots. Among the different rooting
media tried, better root and shoot characters were observed when sand was used as rooting
media. The different pruning height proved effective for biomass production and yield of
stevioside and rebaudioside-A. The biomass and stevioside and rebaudioside-A yield
increases with increase in pruning height. However, pruning height showed insignificant
effect on stevioside and rebaudioside-content. Seed viability was found to decrease with the
increase in storage duration irrespective of storage container and storage temperature. Seed
viability was found to decrease from 83.33% (freshly harvested seed) to 52.78 % (under
refrigerated condition) and 40% (under open storage) after 6 months of storage. Among
different storage containers, plastic bags retain maximum viability (53.33%) and cloth bags
recorded minimum (40.00%) after 6 month of storage. However, mean viability of seeds
decreased to 46.39 % after 6 month of storage
 
Date 2017-01-03T15:00:13Z
2017-01-03T15:00:13Z
2012
 
Type Thesis
 
Identifier 47697
http://krishikosh.egranth.ac.in/handle/1/94186
 
Language en
 
Format application/pdf