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首页> 外文期刊>Australian Journal of Crop Science >The influences of rootstock and pruning seasons on productive and physicochemical traits of ‘Niagara Rosada’ grape
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The influences of rootstock and pruning seasons on productive and physicochemical traits of ‘Niagara Rosada’ grape

机译：砧木和修剪季节对'Niagara Rosada'葡萄生产和理化特性的影响

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摘要

The current study aimed to evaluate the effect of different rootstocks (‘IAC 766’, ‘IAC 572’, ‘IAC 313’, ‘IAC 571-6’ and ‘106-8 Mgt’) on the physicochemical quality of ‘Niagara Rosada’ grape under Brazilian subtropical climate. In this study, a vineyard trellising system supported three years old vines at a density of 6536 plants ha-1. Therefore, evaluations consisted of three pruning seasons: two winter pruning (August 2011 and September 2012) and a summer pruning (January 2012). A complete randomized block design was conducted, subdivided into plots, with five replicates, the plots represented by 5 rootstocks and subplots by pruning seasons. We evaluated bunch number per plant; bunch, berry and rachis fresh mass; berries number per bunch; soluble solid, pH and titratable acidity content in the grape must. Results showed that ‘Niagara Rosada’ grafted onto ‘IAC 572’, presented the highest bunch mass (227g), rachis fresh mass (7.5g) and berries number per bunch (66); while ‘IAC 313’ rootstock performed the lowest values. Moreover, ‘IAC 766’ and ‘106-8 Mgt’ rootstocks presented the highest soluble solid and titratable acidity content, due to these rootstock’s precocity. Furthermore, the highest ratio between soluble solid and titratable acidity was found in ‘Niagara Rosada’ grafted onto ‘IAC 313’ and ‘IAC 571-6’ rootstock.
机译：本研究旨在评估不同砧木（“ IAC 766”，“ IAC 572”，“ IAC 313”，“ IAC 571-6”和“ 106-8 Mgt”）对“ Niagara Rosada”的理化品质的影响巴西亚热带气候下的葡萄。在这项研究中，一个葡萄园格子系统以6536株ha-1的密度支撑了三年的葡萄藤。因此，评估包括三个修剪季节：两个冬季修剪（2011年8月和2012年9月）和一个夏季修剪（2012年1月）。进行了完整的随机区组设计，分为五个重复的样地，该样地由5个砧木和按修剪季节的亚样地表示。我们评估了每株植物的束数;一堆，浆果和萝卜新鲜的质量;每束浆果数;葡萄汁中的可溶性固形物，pH和可滴定的酸度含量。结果表明，嫁接在“ IAC 572”上的“尼亚加拉罗莎达”呈现最高的束质量（227g），chi子新鲜质量（7.5g）和每束浆果数量（66）;而“ IAC 313”砧木的价值最低。此外，由于这些砧木的早熟特性，“ IAC 766”和“ 106-8 Mgt”砧木表现出最高的可溶性固形物和可滴定的酸度。此外，嫁接在'IAC 313'和'IAC 571-6'砧木上的'Niagara Rosada'发现了可溶固体与可滴定酸度之间的最高比率。

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