INDUCTION OF FLOWERING BY USE OF CHEMICALS AND CINCTURING IN 'BOMBAI' LITCHI

D. Mandal, A. Sarkar , B. Ghosh
This study was carried out at farmer’s field, Beniagram, New Farakka, Murshidabad, West Bengal, India to measure the effect of chemicals viz., paclobutrazol (2 and 3 ml a.i./m2 of canopy surface area); Ethrel (1.0 and 2.0 ml/L) and KNO3 (1 and 2%) and cincturing (during September and October) on flower induction of the cultivar ‘Bombai’. The result showed that plants treated with ethrel (2 ml/L) had the highest C/N ratio both in leaves and shoots before flowering. Number of flowering panicles (71.58%), number of fruits per panicle at the initial stage (63.92) and also at harvest (23.09) was found the highest under this treatment. However, the highest sex ratio (male:hermaphrodite) (3.26) of flowers was found in untreated control plants and maximum percentage of fertile pollen was observed in plants treated with KNO3 (2%). Application of paclobutrazol (3 ml a.i./m2 canopy surface area) advanced the flower emergence by six to seven days. Thus, among the treatments, Ethrel (2 ml/L) proved to be the most effective for flowering and fruit induction in litchi cultivar ‘Bombai’.
Mandal, D., Sarkar , A. and Ghosh, B. (2014). INDUCTION OF FLOWERING BY USE OF CHEMICALS AND CINCTURING IN 'BOMBAI' LITCHI. Acta Hortic. 1029, 265-271
DOI: 10.17660/ActaHortic.2014.1029.32
https://doi.org/10.17660/ActaHortic.2014.1029.32
litchi, cincturing, Ethrel, potassium nitrate, paclobutrazol
English

Acta Horticulturae