INFLUENCE OF ORGANIC MANURES AND GROWTH REGULATORS ON GROWTH AND YIELD OF COLEUS {Coleus forskohlii Briq.)
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Date
2007-08-31
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University of Agricultural Sciences GKVK, Banglore
Abstract
Studies were conducted to find out the influence of organic i,
and growth regulators on growth and yield of Coleus {Coleus fa,
Briq.).
Among the organic manures applied in combination, poi
manure + vermicompost, 1:3.37 excelled in morphological characters 1
plant height, plant spread, number of branches per plant, number
leaves per plant and leaf area at 120 DAT. But in sole application o.
manures, vermicompost, 6 t/ha has recorded higher values for all
morphological characters by following the same trend as seen in the
different organic manures applied in combination to the crop. With respect
to yield parameters, the treatment poultry manure + vermicompost, 1:3.37
had the highest number of tubers per plant (24.70), length of tubers
(25.05 cm), diameter of tuber (1.85 cm), volume of tuber (242.03 cc), fresh
weight of tubers (247.44 g/plant), dry weight of tuber (45.03 g/plant),
yield of tubers (3.44 t/ha) and harvest index (33.2%). In sole application of
organic manures, vermicompost, 6 t / ha traced the same trend as that of
other combination treatments.
With regards to application of growth regulators, CCC, 1000 ppm
recorded the highest reduction in plant height and produced more number
of leaves per plant, number of branches per plant, plant spread and leaf
area as compared to other treatments. The yield and yield parameters
were also significantly influenced by application of growth regulators. The
CCC, 1000 ppm recorded the highest number of tubers per plant (30.48),
length of tubers (27.85 cm), diameter of tuber (1.96 cm), volume of tuber
(246.96 cc), fresh weight of tubers (260.28 g/plant), diy weight of tuber
(46.55 g/plant), yield of tuber (2.77 t/ha) and harvest index (47.3%).
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