الفهرس | Only 14 pages are availabe for public view |
Abstract Two identical sets, each set included two experiments, conducted during the fall seasons of 2014 and 2015. The 1st and 2nd sets were field and cold storage trials, orderly. The scope of these experiments (field and cold storage) were to investigate the foliar application of calcium chloride and potassium thiosulfate each at 0.0, 0.2 and 0.4 % on morphological characters, fruits yield and its components, leaf chemical constituents and fruit storage ability of tomato hybrid 65010. The experimental layout of field experiments was a split-plot based on Randomized Complete Blocks design with three replications. Calcium chloride and potassium thiosulfate levels were randomly distributed in the main and sub-plot, respectively. The experimental layout of cold storage experiments was a split-split-plot based on Randomized Complete Blocks design with three replications. Time of cold storage, calcium chloride and potassium thiosulfate levels were randomly distributed in the main, sub- and sub-sub plots, consecutively. Results of field experiments displayed that, foliar application of calcium chloride at 0.4 %, significantly, attained the highest mean values of plant height, number of branches and leaves, leaf area and canopy dry weight plant-1, fruit number and weight plant-1, average fruit weight, total and marketable yield fed-1, leaf P, N, Ca and total chlorophyll contents. Also, foliar application of potassium thiosulfate at 0.4 %, significantly, stimulated plant growth except number of leaves plant-1, fruits yield and its components except fruit number plant-1, leaf K and Ca contents. The interaction between calcium chloride and potassium thiosulfate each at 0.4 % resulted in the highest magnitudes of morphological characters, fruits yield and its components with the sole exception on fruits number plant-1, leaf Ca and total chlorophyll contents whereas, Leaf N, P and K contents were varied between the two seasons. Concerning the results of cold storage experiments; positive responses on fruit titratable acidity, vitamin C, lycopene and weight loss contents, while negative impact on firmness at the termination than the beginning of cold storage. Pre-harvest foliar application of calcium chloride at 0.2 and/or 0.4 % caused increments in fruit vitamin C, total soluble sugars, lycopene and firmness contents, meanwhile decreased titratable acidity and weight loss contents. Foliar application of potassium thiosulfate at 0.2 and/or 0.4 % enhanced fruit vitamin C, total soluble sugars, lycopene and firmness |