Evaluation of shoot growth and fruitful buds of ‘niagara rosada’ grape submitted to different units of pruning
DOI:
https://doi.org/10.5433/1679-0359.2002v23n2p185Keywords:
Vitis labrusca x Vitis vinifera L, Clusters, Shoot growth, Production.Abstract
This research was an attempt to evaluate different units and dates of pruning for ‘Niagara Rosada’ grape produced out of season in the Northwest of Parana state, Brazil. The trial was carried out in a 5-year-old commercial vineyard budded on ‘Riparia do Traviú’ rootstock, located at Marialva city, PR. The vineyard was trained in a horizontal bilateral cordon and planted in a 2,0 m x 1,0 m spacing. The following treatments were evaluated according to the number os buds left on cane or spur: a. cane-pruning (6-8 buds) on january 5th, 2001; b. half-long pruning (4-5 buds) on january 5th, 2001; c. spur-pruning (1-2 buds) on january 5th, 2001; d. cane-pruning (6-8 buds) on january 19th, 2001; e. half-long pruning (4-5 buds) on january 19th, 2001; f. spur-pruning (1-2 buds) on january 19th, 2001. All treatments were applied after the harvesting originated from winter pruning made on July, 2000. A randomized block with 6 treatments and 4 replications in a 3 x 2 factor design (3 units of pruning x 2 periods) was used as a statistical model. Each plot was composed by 4 trees. The following parameters were compared through variance analysis: porcentage of shooting buds and porcentage of shooting buds with clusters. Spur-pruning treatments (1-2 buds) showed the lowest averages for shooting and porcentage of shooting buds with clusters, whereas the cane and half-long pruning treatments (6-8 and 4-5 buds, respectively) showed the highest averages for these paratemers, indicating that both pruning intensities are more appropriate for out of season production of this cultivar. There was no difference between the dates of pruning in relation to the evaluated parameters.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.
This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.
The opinions expressed by the authors of the articles are their sole responsibility.
The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.
