EFFECT OF COVERYE AND DIFFERENT METHODS OF THINNING ON THE SAME QUALITATIVE AND THE QUANTITATIVETRAITS DATE PALM FRUITS BARHEE AND BREEM CV.

Abstract

Abstract:Astudy was conducted on local in private orched in Baghdad governorate. during the growing season 2010 ,to investigate the influence of bunches bagging and different methods of thinning on same the qualitative and quantitativetraits of date palm fruits on two cultivar Brim and Berhi. Date palm bunches were bagged in netted bags and thinned by eight methods. Results showed that bagging the bunches increased the total yield and average weight, size, length and width of the fruit as wellas length and width of the seed and the percentage of dry matter. The thinning method which included cutting 1/3 the bunch + removing 1/4 the inflorescence + removing 1/2 the fruits was significantly gave the highest average , weight, length, size, diameter of the fruit and seed while the lowest average of these parameter were found in the control treatment.The control treatment gave the highest total yield 74.67 kg/plant for both seasons, while the method of thinning which included cutting 1/3 the bunch gave the lowest yield 39.00 kg/plant. Control treatment gave the highest dry weight /plant while gave the lowest dry weight per tree. The influence of interaction between the variety and bagging was significantly C.v Berhi gave the highest average value of the parameters studied while the Brim on without bagging gave the lowest value. the total yield Brim of bagging gave highest 47.54 kg/plant, while the 0f without bagging gave the lowest was 40.62 kg/plant. The interaction between variety and fruit thinning was significantly the C.v Berhi on treatment seven gave the highest average in all the parameters studied while C.v Brim on control treatment gave the lowest value. The interaction between the bagging and fruit thinning was significantly the bagging and thinning method seven gave the highest average value of the parameters mentioned. The C.v Berhi with bagging on method thinning seven gave the highest average value of the parameters mentioned, while C.v Brim and without bagging on control treatment gave the lowest value parametermentioned