GROWTH AND FLOWERING OF LISIANTHUS (Eustoma grandiflorum) WITH NITROGEN DOSES AND PLANT SPACING

Abstract

A field experiment was accomplished at the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka during the period from November 2018 to April 2019 to study the effect of nitrogen doses and spacing on growth and flowering of Lisianthus (variety-SAU Blue Nandini). Nitrogen doses viz. N 1 II =225 kgha (BARI recommended for marigold), N 2 = 250 kgha -1 , N 3 = 275 kgha -1 -1 and Spacing viz. S 1

(30 cm x 15 cm), S 2 (30 cm x 20 cm), S 3 (30 cm x 25 cm) were used in this experiment arranged in a Randomized Complete Block Design with three replications. Data on different growth, flower yield and quality attributes parameters were taken in which all the treatment showed significant variations. Among nitrogen doses, maximum stem number per plant (5.8), peduncle length (13.4 cm), flower head diameter (6.2 cm), flower number per plant (42.6), petal number per flower (19.8) were found from N 3 whereas minimum in N 1 . Among different spacing, maximum stem number per plant (6.5), stem length (58.4 cm), flower head diameter (6.0 cm), flower per plant (42.3) found in wider spacing S 3

whereas minimum found in S 1 . Maximum flower number per plant (55.3) were found in N 3 S 3 and minimum flower number per plant (14.6) were found in N 1 . The study showed that the higher nitrogen doses with wider spacing would be the potential for Lisianthus production.