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KMID : 0903619960370010187
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Journal of the Korean Society for Horticultural Science
1996 Volume.37 No. 1 p.187 ~ p.192
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Effect of Growth Regulators on Puffy - fruit , Content of Sugar and Organic acid in Tomato (Lycopersicon esculentum Mill)
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Abstract
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Flower application of 4-CPA, CPPU and GA₃ at flowering time was conducted to prevent the occurrence of puffy fruits during development of tomatoes for three cultivars ´Momotaro´, ´Seokwang´ and ´Wolkwang´. The single application of 4-CPA and CPPU was better than combined application of 4-CPA and CPPU to prevent the occurrence of puffy fruits. However, GAS application that caused abnormal fruit growth appeared not to be useful. The optimum concentration of 4-CPA and CPPU was 20 ㎎/L and 20-50 ㎎/L regardless of cultivars. Sugars in fruit were mostly glucose and fructose. The fructose content was higher than glucose. Sugars were higher in placenta than in pulp tissue. Organic acids in fruit were mostly citric acid and malic acid and citric acid content was higher in both pollinated fruits and fruits treated with plant growth regulators. These patterns were more apparent in placenta than pulp tissue.
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KEYWORD
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