Aromtic coconut is the popular fruit and reguied increasing but yield has been stable or declining. One casuse of the ploblem is fruit drop. Which is the source of study the effect of Gibberellic acid (GA3) on fruit drop and fruit quality of aromatic coconut. The experiment was conducted with trees were 27 years old at the experimental field, Department of Horticulture, Kasetsart University, Kamphaengsaen Campus, Nakhon Pathom, between March, 2012-January, 2015. Experimental design was Completely Randomized Design (CRD) with three treatments. Six replication (จั่น) for one treatment. Treatment 1) control (water) 2) GA3 at the concentrations of 450 ppm were on จั่น 1 time and 3) GA3 at the concentrations of 450 ppm were on จั่น 2 time (2nd time after 1st time is 4 day) by spraying to inflorescent of Aromatic coconut when 14-21 days after fruit set. The results showed that Fruit drop was non significant. In treatment control has most fruit drop amount 64%, followed by coconut received GA3 at the concentrations of 450 ppm were on จั่น 1 time and 2 time has fruit drop amount 58% and 37%, respectively. And the results showed that GA3 did not effect on fruit quality of aromatic coconut. The color of skin, fruit diameter, fruit length, shell diameter, husk (mesocarp) thickness, shell (endocarp) thickness, pulp thickness, total weight
, husk weight, shell weight, pulp weight, juice volume, total soluable solid (TSS) and titratable acidity (TA) in juice.
Aromtic coconut is the popular fruit and reguied increasing but yield has been stable or declining. One casuse of the ploblem is fruit drop. Which is the source of study the effect of Gibberellic acid (GA3) on fruit drop and fruit quality of aromatic coconut. The experiment was conducted with trees were 27 years old at the experimental field, Department of Horticulture, Kasetsart University, Kamphaengsaen Campus, Nakhon Pathom, between March, 2012-January, 2015. Experimental design was Completely Randomized Design (CRD) with three treatments. Six replication (จั่น) for one treatment. Treatment 1) control (water) 2) GA3 at the concentrations of 450 ppm were on จั่น 1 time and 3) GA3 at the concentrations of 450 ppm were on จั่น 2 time (2nd time after 1st time is 4 day) by spraying to inflorescent of Aromatic coconut when 14-21 days after fruit set. The results showed that Fruit drop was non significant. In treatment control has most fruit drop amount 64%, followed by coconut received GA3 at the concentrations of 450 ppm were on จั่น 1 time and 2 time has fruit drop amount 58% and 37%, respectively. And the results showed that GA3 did not effect on fruit quality of aromatic coconut. The color of skin, fruit diameter, fruit length, shell diameter, husk (mesocarp) thickness, shell (endocarp) thickness, pulp thickness, total weight , husk weight, shell weight, pulp weight, juice volume, total soluable solid (TSS) and titratable acidity (TA) in juice.
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