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RESPIRATION, SAP FLUX, WATER BALANCE AND EXPANSIVE GROWTH IN TOMATO FRUIT

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概要 Diurnal changes in respiration, pedicel sap flux, water balance and expansive growth in a fruit of tomato plant (Lycopersicon esculentum Mill.) were analyzed in an artificial light growth chamber, whe...re the fruit at the stage of rapid sugar accumulation was used. The higher respiration of the intact berry was clearly found under the light where the sap flux and the growth rate were kept higher, but darkening, removal of the calyx and excision of the pedicel brought the lower berry respiration with significant depression in the sap flux and the growth rate. Transpirational water loss from each of the berry and the calyx was only 10% and 20% of the imported sap flux, and the residual 70% of the imported sap flux contributed to expansive growth of the berry. From these results, it is conceivable that respiration of the tomato fruit at the stage of rapid sugar accumulation closely relates to the phloem sap flux which is responsible for sugar accumulation and expansive growth of the fruit.続きを見る

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登録日 2009.04.22
更新日 2017.06.13