EFFECT OF PRE-HARVEST NUTRITIONAL TREATMENTS ON POST-HARVEST LIFE OF CHRYSANTHEMUM (Chrysanthemum morifolium Ramat) CULTIVARS ‘PURNIMA’ AND ‘PUSA SHWE
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Date
2021-11
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled, “Effect of pre-harvest nutritional treatments on
post-harvest life of Chrysanthemum (Chrysanthemum morifolium Ramat) cultivars ‘Purnima’ and
‘Pusa Shwet” was carried out at Department of Floriculture and Landscape Architecture, Dr YS
Parmar University of Horticulture and Forestry, Nauni, Solan (H.P) during 2020-2021. Studies
included two experiments viz. effect of pre-harvest nutritional treatments along with pulsing and
holding solutions and effect of pre-harvest nutritional treatments and storage on post-harvest life of
Chrysanthemum cut flowers. All the experiments were conducted in a Completely Randomized
Design (factorial). As regards the effect of pre-harvest nutritional treatments and pulsing, it was
observed that pre fertilization of the crop with T3 (33.3:33.3:33.3% NPK (Vegetative phase),
33.3:33.3:33.3% (Bud phase), 33.3:33.3:33.3% (Flowering phase), @75:112.5:75 NPK kg/ha along
with pulsing of cut stems in Sucrose (2.5%) + BA (25ppm) + 8HQC (125ppm) for 20 hrs was found
to be the best for enhancing the vase life and presentability in ‘Purnima’ (27.60 days and score of
4.07, respectively) and ‘Pusa Shwet’ (25.07 days and score of 4.07, respectively). As regards the
effect of pre-harvest nutritional treatments and holding treatments, it was observed that, harvesting the
cut stems from T3 followed by keeping them in holding solution containing Sucrose (1%) + 8HQC
(100ppm) has been found to be the best for enhancing the vase life and presentability in ‘Purnima’
(28.33 days and score of 4.00, respectively) and ‘Pusa Shwet’ (27.00 days and 3.80, respectively).
Further, among storage treatments foliar spray of thidiazuron (150 μM) followed by dry storage of cut
stems at 4°C was found to be the best resulting in maximum vase life in ‘Purnima’ (13.40 days) and
‘Pusa Shwet’ (11.20 days). However, cold storage up to 6 days also resulted in considerably good
vase life i.e., 8.67 days in ‘Purnima’ and 7.33 days in ‘Pusa Shwet’.