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1 «Golden delicious» "Golden delicious" % % %

2 Effect of summer sprays Borax on the content of Golden delicious apple fruits of boron, and their storage capacity Hassan Obaid ABSTRACT The study was conducted at the Ein Al arab research center of Dahr Al Jabal in Al Swidaa, during the season of 003 and 004, in order to study the effect of Borax summer sprays on the fruit content of boron using two concentrations 05% and % in addition to the control The boron content in fruits were analyzed and stored at Al Maze cold storage unit under the normal storage condition 0- C, 93% RH, to find out some effects of Borax sprays on fruit weight loss, firmness, starch, and soluble solids content before and during the storage Analysis of variance indicated that there was significant difference in boron content in fruits, which increased with the concentration, that led to a significant positive effect on storage ability of apple fruits, via reduction in fruit weight loss, and by increase the fruit firmness compared to control Key words Boron, Summer foliage sprays, Storage ability, Apple fruits, Golden delicious Associate Prof Department of Horticulture Science, Faculty of agriculture, University of Damascus, POBox 306, Syria 68

3 % Hanson et al 985 BO Marschner, , BO7, BO, H BO3, B OH 4 69

4 - [B OH 4 ] H 3 BO 3 Anversa, 980 Ca CaK Ca Shorrocks, 99 I A A Lewis, 980 % %

5 "Golden delicious" Na B 4 O 7 0H O 400 C Winter et al, % % = % %9-7

6 0= = 0 ft, 37 Penetrometer - 4 Refrectometer X = SPSS Tukey-HSD Excel 993 %5 %5-7

7 % % % B 05% B SE ± 0= %05 60 %05 % % % 35 73

8 % B 05% B SE ± 0= 3-65 % 5 %05 % % %

9 % B 05% B 3 SE ± 0= % 5 % 4 %05 % % % 07 % 5 % % %05 % 5 75

10 3 5 5 % % 05 % % 4 SE ± 0= 5-4 % %05 % %05 36 % 5 % % % %05 76

11 % 05 % SE ± 0= %05 6 % 77

12 % 05 % 6 SE ± 0= % 998 Green and Smith Zude Dixon et al

13 Gleen and Poovaiah 990 Weinbaum et al B Brown and Hu 996 Zude et al 997 Li et al

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15 REFERENCES Anversa, M 980 St rungen der Entwicklung h herer Pflanzen durch unharmonische Bor- und Calcium-Angebote und der Wert komplexer Symptome für die Diagnose Diss FU Berlin, Fachbereich Biologie Brown, P H and H Hu 996 Phloem mobility of boron is species dependent Evidence for phloem mobility in sorbitolrich species Ann Bot 77, Dixon, B, G R Sagar and V M Shorrocks 973 Effect of calcium and boron on the incidence of tree and storage pit in apple of the cultivar "Egremont Russet" Hort Sci 48, Gleen, G M and B W Poovaiah 990 Calcium-mediated postharvest changes in texture and cell wall structure and composition in "Golden Delicious" apples J Amer Soc Sci 5, Green, G M and C B Smith 979 The influence of calcium and boron sprays on corking and nutration of apples Malus domestica "Borkheide" Communs Soil Sciencs Plant Analysis 0, Hanson, E J, M H Chaplin and P J brown 985 Movement of foliar applied boron out of leaves and accumulation in flower buds and flower parts of "Italian" pruns Hort Science 0, Lewis, D H 980 Are there inter-relation between the metabolic role of boron, synthesis phenolic phytoalexins and the germination of pollen? New Phytol 84, 6-70 Li, C H, H Y Yuan, Y G Zhang and F S Zhang 997 Growth of lateral buds versus changes of endogenous indole acetic acid and zeatinzeatin riboside content in pea plants grown under boron deficiency In R W Bell and B Berkasem eds, Boron in Soils and Plants Kluwer Academic Publishers, 79-8 Marschner, H 990 Behavior, function and significance of boron in agriculture Report on an international workshopat, Oxford 3-5 July 990 Shorrocks, V M 99 Micronutrients Requirements, Use and Recent Developments Micronutrients Bureau Weinbaum, S A, G A Picchioni, T T Muraoka, L Ferguson and P H Brown 994 Fertilizer nitrogen and boron uptake, storage, and allocation vary during the alternate-bearing cycle in pistachio trees Journal of the American Society for Horticultural Science 9, 4-3 8

16 Winter, F, H Janssens, W Kennel, H Link und R Silbereisen 99 Lucas Anleitung zum Obstbau Verlag-Eugen-Ulmer 79-8 Zude, M, A Alexander and P Luedders 997 Einfluss von Bor- Sommerspritzung auf den Borgehalt und die Lagerungseigenschaften der Apfelsorte "Elstar" Erwerbsobstbau 39, 6-64 Zude, M, A Alexander and P Lüdders, 998 Einfluss von Borspritzungen im Herbst oder Frühjahr auf die Borkonzentration der Blüten sowie auf Fruchtansatz und Ertrag bei der Apfelsorte "Elstar" Erwerbsobstbau 40, 8- Received Accepted for Publ