Technological maturity and quality of ‘Itália’ grape in protected cultivation with different water conditions

Ciência Rural

Marodin, Gilmar Arduino Bettio¹  Bergamaschi, Homero¹  Santos, Henrique Pessoa dos³  Silva, Leonardo Cury da²  Fialho, Flávio Bello³  Flores, Carlos Alberto⁴ 

[1] Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil;Instituto Federal do Rio Grande do Sul, Bento Gonçalves, Brazil;Embrapa Uva e Vinho, Bento Gonçalves, Brazil;Embrapa Clima Temperado, Pelotas, Brazil

关键词: Vitis vinifera;    technological maturation;    berry;    water stressINTRODUÇÃO:Nos últimos vinte anos;    tem ocorrido um crescimento constante na área de vinhedos com cobertura plástica;    principalmente em cultivos de uvas de mesa na Região Sul do Brasil;    visando à estabilidade de produção;    controle sanitário e incrementos de qualidade (CHAVARRIA & SANTOS;    2012);   

DOI  :  10.1590/0103-8478cr20140608

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The present research was conducted to evaluate the technological maturation and the size parameters (diameter, length and volume) of berries subjected to different soil water conditions and water consumption of grapevines, cultivated within a protected environment. The plants were from Vitis vinifera L., 'Itália' cultivar, grafted on '420A', trained on a discontinuous trellis system and total covered with a plastic woven of polypropylene sealed with polyethylene (160μm). Treatments were comprised of specific contents of soil water availability, where the control (T1) was kept under field capacity conditions with a soil water matrix potential (ψm) of -33.34 kPa. The other treatments were represented by ψm limits of -42.12 kPa (T2), -76.28 kPa (T3) and -94.32 kPa (T4). When the ψm limits were reached the irrigation was performed up to the field capacity condition. The treatments T3 and T4 anticipated the phenological cycle and the technological maturation of berries, but reduced the berry volume and the relative content of total soluble solids, in comparison to the control. In contrast, moderated drought (T2) coupled with greater efficiency of water use by plants and was the best condition to improve the quality of grapes and water saving

【 授权许可】

Unknown