Induction of flowering by use of chemicals and cincturing in ‘Bombai’ litchi
2014
Mandal, D. | Sarkar, A. | Ghosh, B.
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 KNO(3) (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 KNO(3) (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’.
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