Effect of pruning and spraying with N , Ca and GA3 on some characters of fruits and percentage of cracking offig cv. Asowd Diala .

Abstract

Abstract :An experiment was conducted on private orchard at Al- Abbasyia / Nijaf on 15/1/ at 2009 and 2010 respectively to investigate the effects of pruning 50 % and spraying with N , Ca and GA3 at conc. Of 0.3% , 1%, 200 mg/L each ather in single way or combination on the leaf area , total chlorophyll , percentage of carbohydrate , calcium pictate , Firmness , type of crackings and total crackings on ripe Fruits of Fig cv. Aswod Diala . Results indicated that Fruits of treated trees with nitrogen was increased the kinds of crackings , total percentage of crackings and decreased the Calcium pictate and Firmness siginificantly compared with control treatment . Treatmented trees with pruning , Ca and GA3 in single way or combination together with N produced a siginificat increase in leaf area , total chlorophyll and contening Fruits from percentage of carbohydrate , calcium pictate , Firmness and reducing percentage of type of crackings and total crackings compared with control treatment . The treatment of ( P + N + Ca + GA3 ) was siginificantly increased leaf area , total chlorophyll , percentage of carbohydrate , calcium pictate , Firmness , which were (7.54 m2/tree , 115.42 mg / 100g .32.42 % ,o.431kg/cm2 , 3.82 % ) and (8.86 m2 /tree , 114.17 mg / 100g , 22.31 % , 0.422 kg/cm2 ,3.66 % ) for the two growing seasons , respectively and , this treatment gave the lowest percentage of lengitudial , tertiary , quaternary , basal cracking's and total cracking which were ( 1.84 , 1.67 . 1.48 , 0.44 , 5.43 ) % and ( 1.79 , 1.72 , 1.76 , 0.50 , 5.77 )% for both seasons respectively .Key words : Pruning , Nitrogen , Calcium , Gibberellin , Fig. .