Abstract
A field research was under taken to evaluate the efficiency of Boron (B) and Gibberellic Acid (GA3) on fruit setting phenomenon in Olive cultivar “Uslu” in Olive fruit orchard at NARC, HRI during 2009. The Olive plants were sprayed with 4 levels of (B) (@ 0, 0.3, 0.06 & 0.09 %) and (GA3) was also sprayed in 4 levels (0.20ppm, 25ppm and 30ppm) after flower opening. The results showed that the maximum flowering (No.2557) with the application of (B) treatment @ 0.03%, while GA3 showed maximum flowering (No. 2222) with 30ppm treatment. Maximum fruit setting (34) was recorded with (B) spray @ 0.06% and maximum fruit setting (21) was observed with GA3 treatment @ 20ppm. Maximum number of fruits, fruit size and fruit weight was observed with 30ppm (25.00, 3.787cm and 3.650 kg) and maximum number of fruits, fruit size and fruit weight was observed with (B) treatment @ 0.09% (No. 63.50, 1.712 and 3.562 kg) on the basis of above results it may be concluded that (B) @ 0.09% and GA3 @ 30ppm treatment was optimum for improvement in number of flowers & fruits, fruit size and fruit weight in Olive cv “Uslu”
