Comparison of the winter bud productivity, rooting and shoot development parameters of some Vitis spp. with single bud
Abstract
Grapes belonging to the Vitis species are growing worldwide for many years for different purposes. Determining the bud productivity values of varieties belonging to this species for product programming during winter pruning is of great importance for high-quality production. Therefore, our study investigated bud productivity, rooting and shoot development parameters of single-bud cuttings taken from the first and ninth buds of 12 grape varieties with different species and polyploidy levels. In the study, Atak 77, Muscat Bleu, Rizpem, Kyoho (4N), Regent, Isabella, Heukboseok (4N), Özer Beyazı, Superior Seedless, Crimson Seedless, Kismish Rozovyi and Müşküle varieties were compared. Winter bud productivity was evaluated to clarify the winter pruning levels. In addition to cluster number, root development level and shoot length parameters were compared in the same single-bud cuttings. According to the values obtained from all buds regarding bud productivity, especially the interspecific hybrid Regent variety and the V. labrusca species, Isabella variety stood out as more productive than other varieties. In addition, very low bud productivity values were obtained in seedless varieties. Regarding the rooting status of single bud cuttings, Regent and Muscat Bleu, interspecific hybrids, were the most successful varieties. In evaluating shoot length, the interspecific hybrid Muscat Bleu variety gave the longest shoot according to the values obtained from almost all buds. According to these results, varieties obtained from cross-breeding different Vitis species, in particular, could generally have better bud productivity and rooting and shoot development values. This situation should be considered for quality and efficient production, especially during pruning applications.
Keywords
Buds, Grape, Interspecies varieties, Quality production, Crop loading, Bud fertility
Ethical Statement
Peer-review
Externally peer-reviewed.
Declaration of Interests
The authors state there is no competing interest.
Author contribution
The contribution of the authors to the present study is equal. Also this study includes some of the studies from Kevser Çorak's master thesis.
Data availability
Data will be made available on request.
Consent to participate
The authors consent to participate.
Thanks
The authors thank the Viticulture Department of Yalova Atatürk Horticulture Central Research Institute for their assistance.
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