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CNAA / Theses / 2015 / June /

Wine-growing plantation's productivity and grapes' quality according to the variety, gibberellic acid (GA3) and riging incision

Author: Mihov Dmitri
Degree:doctor of agriculture
Speciality: 06.01.08 - Viticulture
Scientific adviser: Antonina Derendovschi
doctor habilitat, professor, Agrarian State University of Moldova
Scientific consultant: Nicolae Perstniov
doctor habilitat
Institution: Agrarian State University of Moldova


The thesis was presented on the 12 June, 2015
Approved by NCAA on the 7 July, 2015


Adobe PDF document0.86 Mb / in romanian


CZU 634.86.004.12:[631.559+631.811.9+631.542] (478)

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163 pages


Vine, Table Grapes, Gibberellic acid (GA3), Ringing incision, Quality, Productivity, Seedlings, Ripening, Berries thinning


Thesis structure: Introduction, 3 Chapters, General Conclusions and Recommendations, Bibliography of 266 titles, 6 Appendices. Domain of study: 411.07 – Viticulture

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.

Aplicative value of researches: the recommendation for producing table grapes under the conditions of Southern region of the Republic of Moldova applying the gibberellic acid (GA3) in concentration of 60 mg/l for Codreanca variety, 40 mg/l for Lora variety and 100 mg/l for Black Emerald variety to increase the productivity of vines and improve the quality of the yield.

Implementation of scientific results. There have been implemented the obtained results at the farms „Terra-Vitis” Ltd., „Jigolboe Agro” Ltd. and Family Farm „Ciobanu Vitalie” on cultivation of table grapes varieties homologated in the Republic of Moldova.