PERFORMANCE OF CARNATION (Dianthus caryophyllus L.) GENOTYPES UNDER PROTECTED CULTIVATION
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Date
2012-07
Authors
TARANNUM
Journal Title
Journal ISSN
Volume Title
Publisher
University of Horticultural Sciences, Bagalkot (COLLEGE OF HORTICULTURE, MUDIGERE )
Abstract
The Divine flower Carnation in the modern times has become one
of the most important and highly remunerative flower crops grown under
polyhouse, occupies an esteem position among top ten flower crops in
the International trade mainly for its cut flowers. It is also used for
bedding, pots, rock gardens, window boxes and edging. There is always
demand for novel types with high yielding genotypes. Hence, the present
study was conducted to identify the suitable Carnation genotypes under
naturally ventilated polyhouse in hill zone during 2011-12, with respect
to yield and quality cut flowers and also to find out the best chemical
preservative for enhancing the vase life in the Department of Floriculture
and Landscape Architecture, College of Horticulture, Mudigere.
Among the eight genotypes studied there were wide and highly
significant variations observed in performance with respect to growth,
floral, cut flower yield and quality parameters. The cv. Soto produced
maximum number of quality cut flowers and was found to be
significantly superior over others. Dona and White Dona were next
superior types. Soto produced the longest stalk length, bigger sized
flowers with maximum number of petals whereas; stalk girth was more
in White Dona followed by Soto and Dona. The genotype Soto, Golem and
White Dona were early in flowering. Most of the morphological
parameters viz., plant height, plant spread, number of branches,
internodes and leaves; leaf length and width, leaf area, dry matter
production, chlorophyll content etc., were found superior in cv. Soto
followed by White Dona, Dona and Harish.
The genotype ‘Soto’ realized maximum net return and B:C ratio (
3,50,483; 2.50) in 560m2 area followed by Dona ( 2,80,343; 2.00,
respectively) and White Dona ( 2,59,343;1.85) compared to other
genotypes studied.
In the vase life study, among the chemical preservatives (viz.,
citric acid, cobalt chloride and 8-HQS) tried, citric acid @ 200ppm
recorded maximum vase life of Carnation (12 days) followed by citric acid
@ 150 ppm (11 days ).