Wine-growing plantation's productivity and grapes' quality according to the variety, gibberellic acid (GA3) and ringing incision: Ph.D. thesis in Agricultural Sciences

The aim of thesis: to determine the influence of term and concentration of applying the Giberlic acid (GA3) and the action of ringing on quantity, quality of production and, as a result of economic efficiency of various table grape varieties. Objectives of research: the study of action influence of gibberellic acid (GA3) on table grapes quantity and quality in dependance of concentration and term of application; the demonstration of the influence of ringing incision on period of table grapes ripening; economic evaluation of the plantation according to the application of gibberellic acid (GA3) and making ringing incision. Scientific novelty: are traced new objectieves regarding the application of gibberellic acid (GA3) on table grapes, amidst which are the determination of gibberellic acid’s influence on reduction of table grapes’ compactness, the seedless degree on varieties with seeds, bud fertility, quality and quantity of secondary production, and that reffer to testing the efficience of ringing incision made with the aim to increase ripening are done for the first time in the Republic of Moldova. Scientific problem, sustained in the thesis, is focused on a study about the influence of gibberil-lic acid (GA3) use and the effect of ringing incision, both being vital to improve the trade aspect of grapes, to increase the plantation's productivity and ameliorate the taste quality of grapes with the aim to use these operations as indispansable links in the technology of cultivating table grapes. Theoretical importance of thesis: the obtained experimental data contribute to the research of gibberellic acid influence with or without ring incision on the productivity and quality of table grapes that are homologated in the Republic of Moldova. Описание: