Influence of De-blossoming and GA3 Application on Fruit Drop and Growth of Winter Guava
Influence of De-blossoming and GA3 Application on Fruit Drop and Growth of Winter Guava
Sadia*, Abdur Rab, Sayyed Hamad Ahmad Shah, Irfan Ullah, Farida Bibi and Islam Zeb
ABSTRACT
Influence of deblossoming and GA3 application on fruit drop and growth of winter guava was carried out in Horticulture Farm at The University of Agriculture Peshawar, Pakistan during 2016. RCB Design was used for this experiment with three replications i.e. factor A was Deblossoming Time (Control, May, June, July, August and September) and factor B was GA3 application (0, 10, 20, 30, 40 and 50 ppm). Results demonstrated that minimum fruit drop (5.95%), fruit density (0.80gcm-3) with maximum number of new shoots (55.7), number of new flowers (225.3), fruit weight (197.5g), and fruit volume (245.5cm3) were recorded in plants deblossomed in September treated with 50 ppm of GA3. While maximum fruit density (1.13gcm-3) was recorded in the month of July fruits treated with 10 ppm of GA3. While maximum fruit drop (11.69%), titratable acidity (0.59%), with minimum number of new shoots (16.3), number of new flowers (65.3), fruit weight (53.3g), and fruit volume (48.1cm3) were recorded in plants which were not deblossomed and sprayed with distilled water. It is concluded from the current study that Deblossoming time and GA3 application might be significantly reduced the fruit drop and enhanced the growth of guava tree.
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