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首页> 外文期刊>Acta Horticulturae >Dendrometric measurements in grapevine ( Vitis vinifera L. 'Tempranillo' and 'Cabernet Sauvignon') under regulated deficit irrigation.
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Dendrometric measurements in grapevine ( Vitis vinifera L. 'Tempranillo' and 'Cabernet Sauvignon') under regulated deficit irrigation.

机译：调节性缺水灌溉条件下葡萄（ vinifera L。'Tempranillo'和'Cabernet Sauvignon'）的树突测量。

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摘要

Measurements of trunk diameter fluctuations (TDF) were carried out in 2004 and 2006 in a grapevine (Vitis vinifera L.) experiment aimed at establishing criteria for irrigation scheduling based on TDF readings. The experiment considered two cultivars ('Tempranillo' and 'Cabernet Sauvignon') under four regulated deficit irrigation (RDI) regimes. The results from the first year showed that the dynamic of maximum trunk diameter (MXTD) was a good indicator of vine water status before veraison in the different treatments and cultivars. By contrast, the maximum daily trunk shrinkage (MDS) was not as good indicator of water stress compared to MXTD, as no differences were found among RDI treatments, although they were highly significant (P<0.001) among cultivars. In the second year of the experiment, only the two most extreme irrigation treatments were monitored with a double number of LVDT sensors to focus on stress detection. The results confirmed those of 2004, with differences in water status, which were not well correlated with the MDS measurements. However, the MDS differences among cultivars were confirmed to be highly significant and related to the inherent water relations of each cultivar. It was concluded that, in grapevines, TDF measurements do not lead to the direct assessment of vine water status and therefore may not be best suited for the development of irrigation scheduling procedures.
机译：树干直径波动（TDF）的测量是在2004年和2006年进行的葡萄（Vitis vinifera L.）葡萄试验中进行的，旨在根据TDF读数确定灌溉计划标准。该实验考虑了四个调节亏缺灌溉（RDI）制度下的两个品种（'Tempranillo'和'Cabernet Sauvignon'）。第一年的结果表明，在不同处理和品种进行验证之前，最大树干直径（MXTD）的动态是藤本植物水分状况的良好指标。相比之下，与MXTD相比，最大日躯干收缩率（MDS）不能作为水分胁迫的良好指标，因为RDI处理之间没有发现差异，尽管在品种之间差异很大（P <0.001）。在实验的第二年，仅使用两个LVDT传感器监控了两个最极端的灌溉处理，以专注于压力检测。结果证实了2004年的水质状况，与MDS测量值没有很好的相关性。但是，已确认品种之间的MDS差异非常显着，并且与每个品种的固有水分关系有关。结论是，在葡萄树中，TDF的测定不能直接评估葡萄的水分状况，因此可能不适合制定灌溉计划。

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