Effect of late season boron spray on boron accumulation and fruit set of ＆Summit＊ and ＆Hedelfinger＊ sweet cherry (Prunus avium L.)

作者：Valentina Usenik; Franci tampar

来源：Acta Agriculturae Slovenica, 2007.

DOI：10.2478/v10014-007-0006-x

• sweet cherry
• Prunus avium
• Gisela 5
• foliar nutrition
• boron
• flower buds
• fruit set.

The influence of late-season boron (B) application on the bud B concentration and fruit set was studied in sweet cherry (Prunus avium L.). The experiment was carried out on 5-year-old ＆Summit＊ and ＆Hedelfinger＊ trees on rootstock Gisela 5 in Fruit Growing centre Ga nik. Trees were sprayed with B (1% Bortrack) or water (control). Differences in B concentration were measured between cultivars, the highest content in ＆Hedelfinger＊ buds. Boron application resulted in increased B concentration in flower buds. Fruit set was influenced with cultivar, boron application and micro location. Fruit set was statistically higher in ＆Hedelfinger＊ than in ＆Summit＊ trees. The results showed that B fertilization had no effect on fruit set of ＆Summit＊ despite increased concentration of boron by 94.8% in dormant flower buds. Foliar boron spraying of ＆Hedelfinger＊ was effective in increasing B concentration (by 157.2%) and fruit set on half trees.