Selenium absorption, distribution and accumulation in the protected cul- tivated grapevine

Abstract：Three-year-old grapevine cv Fujiminori, grafted on Beta rootstock, were planted in the experimental orchard of Fruit Research Institute, Chinese Academy of Agricultural Sciences in order to study Selenium absorbtion, distribution and accumulation in the protected cultivated grapevine and the effect of Se on the fruit qualities. The results indicated that after treatment with 0.2 g. plant-1 NazSeO3 at flowering, Se concentration in leaves, leafstalks, berry flesh and in single beery from flowering to fruit ripening firstly rose and then dropped. Se concentration in leaves, leafstalks and berry flesh increased significantly compared with control and the orders of Se distribution changed to berry flesh 〉leaf〉leafstalk after treatment. The orders of Se distribution in the fruit were seed〉berry flesh〉skin with soil application, and skin〉 berry flesh〉seed with spraying selenium solution. Se concentration in berry flesh with soil application at 20 to 35 days after flowering was more than that at other berry development stages. Se concentration in analyzed parts of berry was significantly corresponded with the increase of selenium doses . TSS rose significantly after Se application and reached the highest with 0.15 g·fruit-l Na2SeO3, but dropped with 0.2 g·plant-I Na_2SeO_3.