EVALUATION OF CROSSANDRA (Crossandra undulaefolia Salisb.) GENOTYPES UNDER EASTERN DRY ZONE OF KARNATAKA
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Date
2017-06
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University of Horticultural Sciences, Bagalkot. (College of Horticulture, Bengaluru).
Abstract
An experiment was carried out to evaluate eight genotypes of crossandra for growth
flowering behaviour, yield and quality traits using Randomized Complete Block Design at
Department of Floriculture and Landscape Architecture, College of Horticulture, UHS campus,
Bengaluru, Karnataka during September 2016 to June 2017. The maximum plant height (56.95
cm) and plant spread in North – South direction and East – West directions was maximum in
‘Arka Shravya’ (60.09 cm and 60.21 cm, respectively). The genotype ‘Arka Shreeya’ had
maximum number of primary and secondary branches (9.00 and 29.73, respectively) per plant.
With respect to flowering parameters, the genotype ‘Arka Shreeya’ was early to initiate the first
flower and to reach 50 per cent flowering. Flower quality viz., flower diameter (3.87 cm) and
corolla tube length (2.58 cm) were recorded maximum in genotype ‘Arka Shreeya’ with the
color intensity of Orange red 35 B. ‘Arka Shravya’ recorded the maximum number of flowers
per spike (42.00) and longest spike (10.79 cm), and highest flower yield per plant and per hectare
(232.60 g and 12.79 t, respectively). Flowers packed in high density polyethylene cover with 1
per cent ventilation proved effective in extending the shelf life of crossandra flowers up to 50.67
hrs. with less physiological loss in weight and more moisture content. This was closely followed
by aluminium laminated polyethylene covers with 1 per cent ventilation.
Among the genotypes, Arka Shravya seems to be superior under Eastern dry zone of
Karnataka for growth and yield characters.