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  • Abscission of young apple fruits (Malus domestica Borkh.) : a review
    Kolarič, Jure, 1982-
    Abscission is a morphogenetic process, which is genetically regulated and plays several roles in plant life. Abscission of young apple (Malus domestica Borkh.) fruits is especially important to ... prevent alternate bearing and to improve several quality parameters of mature fruits. For the stimulation of fruitlet abscission different chemical substances can be used. Chemical substances act by prevention of pollination/fertilization (bloom thinning) or by stimulation of fruitlet drop (fruit thinning). Although the chemical thinning is a well known technological measure in fruit growing, the mode of action of different chemical thinners is still unclear. Researchers believed that chemicals can act by interfering hormonal state in plant, inhibiting assimilate production, or affect on polar auxin transport (PAT). However, until now none of these theses have been fully confirmed. Since abscission is a genetically controlled process, several experiments were designed to identify genes related to abscission in the last years. Until now groups of genes related to ethylene biosynthesis, to auxin efflux/influx carriers, to carbohydrate metabolism and to hydrolytic enzymes were identified. All mentioned genes are differently down- or up-regulated during the abscisssion process and to clarify the role of these genes in abscission more experiments have to be designed.
    Vir: Agricultura. - ISSN 1580-8432 (Letn. 7, št. 1, mar. 2010, str. 31-36)
    Vrsta gradiva - članek, sestavni del
    Leto - 2010
    Jezik - angleški
    COBISS.SI-ID - 3283560

vir: Agricultura. - ISSN 1580-8432 (Letn. 7, št. 1, mar. 2010, str. 31-36)

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