National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Chrysanthemum morifolium Ramat is photoperiodically controlled ornamental crop, therefore, the monitoring of photoperiod provides an efficient crop schedule according to demand of flowers in the market. The six different photoperiodic night interruption treatments i.e. control, <5 second flash, 30-, 60-, 90- and 120- minute were used to study the influence on development of standard potted Chrysanthemum cultivar Snowball. The vegetative growth of the plant i.e. plant height, number of leaves and root suckers per plant were positively affected with increased night interruption duration. The flower bud appearance was significantly delayed in < 5 sec. night interruption (85.62 days) than the control (62.52 days), whereas, there was no flower bud appearance (rosette formation of leaves) in all the other treatments. The flowering time was delayed from Mid- November to Mid- December i.e. by around one month as the duration of night interruption was increased from control to < 5 sec. night interruption. The flower quality was negatively affected with reduction in duration of flowering at <5 sec. night interruption, whereas, flower diameter was increased. Therefore, the present study on influence of night interruption durations would be helpful to schedule the flowering time in Chrysanthemum cultivar Snowball by around one month with increased plant growth for sustainable potted flower production.
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