Gibberellin effect on the Date palm (Phoenix dactylifera L) cv.Hillawi infection with physiological damage white end
Basrah Journal For Date Palm Research,
Volume 5, Issue 1, Pages 116-126
AbstractThis study was carried out during the cultivation season 2004 in Abu-Al Khassieb
location to determine the effect of growth regulator GA3 with different concentration
on some fruits features of Hillawi cv. at at two dates (1/6& 1/7 ) .
This study explained that the fruit spraying with GA3 at the first date led to decrease
fruits weight average ; while the spraying with GA3 concent.75ppm at the second
date led to increase the weight of fruit significantly &reached 6.78 g in contrast with
The results, also showed that the spraying with all concentration of GA3 for each
dates led to increase the water content significantly in the fruits of Hillawi cv & led to
decrease the rate of fruit ripening .
The results proved that GA3 concentration spraying at all dates led to reduce the
white end percentage with physiological damages ,this reducing was correlated
positively with the increasing of concentration .the lowest percentage of white end
was in the treatment of 75ppm which was 15.12 & 14.07 % for each dates
respectively in contrast with un treatment fruits 27.47% .
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