Green Global
Foundation   Journal
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EFFECT OF DIFFERENT APPLICATION TIME OF ETHREL ON OFF-SEASON PINEAPPLE PRODUCTION AT SRIMONGAL, SYLHET (Pages : 68 - 71)

Experiments were carried out at Muchaibari, Srimongal under Moulvibazar Multilocation Testing Site, OFRD, Sylhet during two consecutive years of 2005 - 2006 and 2006- 2007 to find out the response of pineapple plants (cv. Giant Kew) to ethrel in early, uniform flowering and off-season production of fruits. Ethrel had significant effect on flower induction and fruit development in pineapple. Ethrel applied in September on 300 days old plants induced flowering 146 days earlier in off-season than those in the control. Hormone (ethrel) treated plot in September showed maximum flowering (84%) followed by ethrel applied in November on 360 days old plants. September treated plants took minimum duration (520 days) while control plots took maximum crop duration (613 days) for ripening. Size of fruit was increased with increasing age of plants at forcing. The highest fruit yield (31275 kg ha-1 ) was produced by control plots and the lowest from September forcing. Maximum gross margin and benefit-cost ratio were also recorded from September forcing. The result revealed that use of ethrel as growth regulator on 300 day old plants in September could be the effective and profitable for off- season fruiting of pineapple. Download