Effect of Bulb Spacing and Size on Growth and Flowering of Chincherinchee (Ornithogalum thyrsoides Jacq.)

Abstract

Abstract

The present investigation entitled “Effect of bulb spacing and sizes on growth and flowering of Ornithogalum thyrsoides Jacq.” was carried out at the Research Farm of the Department of Floriculture and Landscaping, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan (H. P.), India during the year 2009–2010. An experiment comprising of four spacings and three sizes of bulbs with three replications was conducted using randomized block design (factorial) in the field. In this experiment, the vegetative growth parameters viz. plant height (47.81 cm, 48.11 cm), stem length (25.37 cm, 26.09 cm), number of leaves per plant (17.74, 14.27), leaf area (25.21 cm², 26.13 cm²) ; the flowering parameters namely, number of florets/stem (53.76, 55.38), cut stem diameter (5.22 mm and 5.30 mm), cut flower weight (17.02 g, 17.26 g), vase life (14.52 days, 14.86 days), duration of flowering (19.86 days, 21.26 days ); the bulb production parameters like number of bulbs per plant (2.38, 1.99), weight of bulb (8.94 g, 8.88 g), size of bulb (2.88 cm, 2.72 cm) were found to be maximum in bulbs of size
 2.4–2.8 cm and density of 30 bulbs/m², respectively over other treatments. Plant spread (23.78 cm, 23.61 cm) and size of florets (1.76 cm, 1.78 cm) was larger in bulb size of
2.4–2.8 cm and 25 bulbs/m² density, respectively over the control.

Keywords: Spacing, Size, Growth, Flowering, Chincherinchee bulb